Mercurial > embed
changeset 95:376c396887e0
fmt: now in C++20
| author | David Demelier <markand@malikania.fr> |
|---|---|
| date | Sat, 02 Oct 2021 08:46:57 +0200 |
| parents | 48f9b1d447c9 |
| children | 5bcb50495f5b |
| files | LICENSE.libfmt.txt VERSION.libfmt.txt libfmt/CMakeLists.txt libfmt/include/fmt/core.h libfmt/include/fmt/format-inl.h libfmt/include/fmt/format.h libfmt/include/fmt/ostream.h libfmt/include/fmt/posix.h libfmt/include/fmt/printf.h libfmt/include/fmt/ranges.h libfmt/include/fmt/time.h libfmt/src/format.cc libfmt/src/posix.cc libfmt/support/cmake/cxx14.cmake |
| diffstat | 14 files changed, 0 insertions(+), 8069 deletions(-) [+] |
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--- a/LICENSE.libfmt.txt Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,23 +0,0 @@ -Copyright (c) 2012 - 2015, Victor Zverovich - -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -1. Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. -2. Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND -ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED -WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR -ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES -(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND -ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
--- a/VERSION.libfmt.txt Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -5.1.0
--- a/libfmt/CMakeLists.txt Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,56 +0,0 @@ -# -# this file was customized it may be different from upstream. -# - -cmake_minimum_required(VERSION 3.1.0) -project(libfmt) - -set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${libfmt_SOURCE_DIR}/support/cmake") - -include(cxx14) -include(CheckCXXCompilerFlag) - -include(CheckSymbolExists) - -if (WIN32) - check_symbol_exists(open io.h HAVE_OPEN) -else () - check_symbol_exists(open fcntl.h HAVE_OPEN) -endif () - -set( - HEADERS - ${libfmt_SOURCE_DIR}/include/fmt/core.h - ${libfmt_SOURCE_DIR}/include/fmt/format.h - ${libfmt_SOURCE_DIR}/include/fmt/format-inl.h - ${libfmt_SOURCE_DIR}/include/fmt/ostream.h - ${libfmt_SOURCE_DIR}/include/fmt/printf.h - ${libfmt_SOURCE_DIR}/include/fmt/time.h - ${libfmt_SOURCE_DIR}/include/fmt/ranges.h -) - -set(FMT_SOURCES ${libfmt_SOURCE_DIR}/src/format.cc) - -if (HAVE_OPEN) - set(FMT_HEADERS ${FMT_HEADERS} ${libfmt_SOURCE_DIR}/include/fmt/posix.h) - set(FMT_SOURCES ${FMT_SOURCES} ${libfmt_SOURCE_DIR}/src/posix.cc) -endif () - -add_library(libfmt ${FMT_SOURCES} ${FMT_HEADERS}) -set_target_properties(libfmt PROPERTIES PREFIX "" WINDOWS_EXPORT_ALL_SYMBOLS On) - -target_include_directories( - libfmt - PUBLIC - $<BUILD_INTERFACE:${libfmt_SOURCE_DIR}/include> -) - -if (BUILD_SHARED_LIBS) - if (UNIX AND NOT APPLE) - # Fix rpmlint warning: - # unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6. - target_link_libraries(libfmt -Wl,--as-needed) - endif () - - target_compile_definitions(libfmt PRIVATE FMT_EXPORT INTERFACE FMT_SHARED) -endif ()
--- a/libfmt/include/fmt/core.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1331 +0,0 @@ -// Formatting library for C++ - the core API -// -// Copyright (c) 2012 - present, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#ifndef FMT_CORE_H_ -#define FMT_CORE_H_ - -#include <cassert> -#include <cstdio> -#include <cstring> -#include <iterator> -#include <string> -#include <type_traits> - -// The fmt library version in the form major * 10000 + minor * 100 + patch. -#define FMT_VERSION 50100 - -#ifdef __has_feature -# define FMT_HAS_FEATURE(x) __has_feature(x) -#else -# define FMT_HAS_FEATURE(x) 0 -#endif - -#ifdef __has_include -# define FMT_HAS_INCLUDE(x) __has_include(x) -#else -# define FMT_HAS_INCLUDE(x) 0 -#endif - -#ifdef __has_cpp_attribute -# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) -#else -# define FMT_HAS_CPP_ATTRIBUTE(x) 0 -#endif - -#if defined(__GNUC__) && !defined(__clang__) -# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) -#else -# define FMT_GCC_VERSION 0 -#endif - -#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__) -# define FMT_HAS_GXX_CXX11 FMT_GCC_VERSION -#else -# define FMT_HAS_GXX_CXX11 0 -#endif - -#ifdef _MSC_VER -# define FMT_MSC_VER _MSC_VER -#else -# define FMT_MSC_VER 0 -#endif - -// Check if relaxed c++14 constexpr is supported. -// GCC doesn't allow throw in constexpr until version 6 (bug 67371). -#ifndef FMT_USE_CONSTEXPR -# define FMT_USE_CONSTEXPR \ - (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || \ - (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L)) -#endif -#if FMT_USE_CONSTEXPR -# define FMT_CONSTEXPR constexpr -# define FMT_CONSTEXPR_DECL constexpr -#else -# define FMT_CONSTEXPR inline -# define FMT_CONSTEXPR_DECL -#endif - -#ifndef FMT_OVERRIDE -# if FMT_HAS_FEATURE(cxx_override) || \ - (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ - FMT_MSC_VER >= 1900 -# define FMT_OVERRIDE override -# else -# define FMT_OVERRIDE -# endif -#endif - -#if FMT_HAS_FEATURE(cxx_explicit_conversions) || \ - FMT_MSC_VER >= 1800 -# define FMT_EXPLICIT explicit -#else -# define FMT_EXPLICIT -#endif - -#ifndef FMT_NULL -# if FMT_HAS_FEATURE(cxx_nullptr) || \ - (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ - FMT_MSC_VER >= 1600 -# define FMT_NULL nullptr -# define FMT_USE_NULLPTR 1 -# else -# define FMT_NULL NULL -# endif -#endif - -#ifndef FMT_USE_NULLPTR -# define FMT_USE_NULLPTR 0 -#endif - -#if FMT_HAS_CPP_ATTRIBUTE(noreturn) -# define FMT_NORETURN [[noreturn]] -#else -# define FMT_NORETURN -#endif - -// Check if exceptions are disabled. -#if defined(__GNUC__) && !defined(__EXCEPTIONS) -# define FMT_EXCEPTIONS 0 -#elif FMT_MSC_VER && !_HAS_EXCEPTIONS -# define FMT_EXCEPTIONS 0 -#endif -#ifndef FMT_EXCEPTIONS -# define FMT_EXCEPTIONS 1 -#endif - -// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature). -#ifndef FMT_USE_NOEXCEPT -# define FMT_USE_NOEXCEPT 0 -#endif - -#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ - (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \ - FMT_MSC_VER >= 1900 -# define FMT_DETECTED_NOEXCEPT noexcept -#else -# define FMT_DETECTED_NOEXCEPT throw() -#endif - -#ifndef FMT_NOEXCEPT -# if FMT_EXCEPTIONS -# define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT -# else -# define FMT_NOEXCEPT -# endif -#endif - -// This is needed because GCC still uses throw() in its headers when exceptions -// are disabled. -#if FMT_GCC_VERSION -# define FMT_DTOR_NOEXCEPT FMT_DETECTED_NOEXCEPT -#else -# define FMT_DTOR_NOEXCEPT FMT_NOEXCEPT -#endif - -#ifndef FMT_BEGIN_NAMESPACE -# if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || \ - FMT_MSC_VER >= 1900 -# define FMT_INLINE_NAMESPACE inline namespace -# define FMT_END_NAMESPACE }} -# else -# define FMT_INLINE_NAMESPACE namespace -# define FMT_END_NAMESPACE } using namespace v5; } -# endif -# define FMT_BEGIN_NAMESPACE namespace fmt { FMT_INLINE_NAMESPACE v5 { -#endif - -#if !defined(FMT_HEADER_ONLY) && defined(_WIN32) -# ifdef FMT_EXPORT -# define FMT_API __declspec(dllexport) -# elif defined(FMT_SHARED) -# define FMT_API __declspec(dllimport) -# endif -#endif -#ifndef FMT_API -# define FMT_API -#endif - -#ifndef FMT_ASSERT -# define FMT_ASSERT(condition, message) assert((condition) && message) -#endif - -#define FMT_DELETED = delete - -// A macro to disallow the copy construction and assignment. -#define FMT_DISALLOW_COPY_AND_ASSIGN(Type) \ - Type(const Type &) FMT_DELETED; \ - void operator=(const Type &) FMT_DELETED - -// libc++ supports string_view in pre-c++17. -#if (FMT_HAS_INCLUDE(<string_view>) && \ - (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \ - (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910) -# include <string_view> -# define FMT_USE_STD_STRING_VIEW -#elif (FMT_HAS_INCLUDE(<experimental/string_view>) && \ - __cplusplus >= 201402L) -# include <experimental/string_view> -# define FMT_USE_EXPERIMENTAL_STRING_VIEW -#endif - -// std::result_of is defined in <functional> in gcc 4.4. -#if FMT_GCC_VERSION && FMT_GCC_VERSION <= 404 -# include <functional> -#endif - -FMT_BEGIN_NAMESPACE - -namespace internal { - -// An implementation of declval for pre-C++11 compilers such as gcc 4. -template <typename T> -typename std::add_rvalue_reference<T>::type declval() FMT_NOEXCEPT; - -// Casts nonnegative integer to unsigned. -template <typename Int> -FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value) { - FMT_ASSERT(value >= 0, "negative value"); - return static_cast<typename std::make_unsigned<Int>::type>(value); -} - -} - -/** - An implementation of ``std::basic_string_view`` for pre-C++17. It provides a - subset of the API. ``fmt::basic_string_view`` is used for format strings even - if ``std::string_view`` is available to prevent issues when a library is - compiled with a different ``-std`` option than the client code (which is not - recommended). - */ -template <typename Char> -class basic_string_view { - private: - const Char *data_; - size_t size_; - - public: - typedef Char char_type; - typedef const Char *iterator; - - // Standard basic_string_view type. -#if defined(FMT_USE_STD_STRING_VIEW) - typedef std::basic_string_view<Char> type; -#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW) - typedef std::experimental::basic_string_view<Char> type; -#else - struct type { - const char *data() const { return FMT_NULL; } - size_t size() const { return 0; } - }; -#endif - - FMT_CONSTEXPR basic_string_view() FMT_NOEXCEPT : data_(FMT_NULL), size_(0) {} - - /** Constructs a string reference object from a C string and a size. */ - FMT_CONSTEXPR basic_string_view(const Char *s, size_t count) FMT_NOEXCEPT - : data_(s), size_(count) {} - - /** - \rst - Constructs a string reference object from a C string computing - the size with ``std::char_traits<Char>::length``. - \endrst - */ - basic_string_view(const Char *s) - : data_(s), size_(std::char_traits<Char>::length(s)) {} - - /** Constructs a string reference from a ``std::basic_string`` object. */ - template <typename Alloc> - FMT_CONSTEXPR basic_string_view( - const std::basic_string<Char, Alloc> &s) FMT_NOEXCEPT - : data_(s.c_str()), size_(s.size()) {} - - FMT_CONSTEXPR basic_string_view(type s) FMT_NOEXCEPT - : data_(s.data()), size_(s.size()) {} - - /** Returns a pointer to the string data. */ - const Char *data() const { return data_; } - - /** Returns the string size. */ - FMT_CONSTEXPR size_t size() const { return size_; } - - FMT_CONSTEXPR iterator begin() const { return data_; } - FMT_CONSTEXPR iterator end() const { return data_ + size_; } - - FMT_CONSTEXPR void remove_prefix(size_t n) { - data_ += n; - size_ -= n; - } - - // Lexicographically compare this string reference to other. - int compare(basic_string_view other) const { - size_t str_size = size_ < other.size_ ? size_ : other.size_; - int result = std::char_traits<Char>::compare(data_, other.data_, str_size); - if (result == 0) - result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); - return result; - } - - friend bool operator==(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) == 0; - } - friend bool operator!=(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) != 0; - } - friend bool operator<(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) < 0; - } - friend bool operator<=(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) <= 0; - } - friend bool operator>(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) > 0; - } - friend bool operator>=(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) >= 0; - } -}; - -typedef basic_string_view<char> string_view; -typedef basic_string_view<wchar_t> wstring_view; - -template <typename Context> -class basic_format_arg; - -template <typename Context> -class basic_format_args; - -// A formatter for objects of type T. -template <typename T, typename Char = char, typename Enable = void> -struct formatter; - -namespace internal { - -/** A contiguous memory buffer with an optional growing ability. */ -template <typename T> -class basic_buffer { - private: - FMT_DISALLOW_COPY_AND_ASSIGN(basic_buffer); - - T *ptr_; - std::size_t size_; - std::size_t capacity_; - - protected: - basic_buffer(T *p = FMT_NULL, std::size_t sz = 0, std::size_t cap = 0) - FMT_NOEXCEPT: ptr_(p), size_(sz), capacity_(cap) {} - - /** Sets the buffer data and capacity. */ - void set(T *buf_data, std::size_t buf_capacity) FMT_NOEXCEPT { - ptr_ = buf_data; - capacity_ = buf_capacity; - } - - /** Increases the buffer capacity to hold at least *capacity* elements. */ - virtual void grow(std::size_t capacity) = 0; - - public: - typedef T value_type; - typedef const T &const_reference; - - virtual ~basic_buffer() {} - - T *begin() FMT_NOEXCEPT { return ptr_; } - T *end() FMT_NOEXCEPT { return ptr_ + size_; } - - /** Returns the size of this buffer. */ - std::size_t size() const FMT_NOEXCEPT { return size_; } - - /** Returns the capacity of this buffer. */ - std::size_t capacity() const FMT_NOEXCEPT { return capacity_; } - - /** Returns a pointer to the buffer data. */ - T *data() FMT_NOEXCEPT { return ptr_; } - - /** Returns a pointer to the buffer data. */ - const T *data() const FMT_NOEXCEPT { return ptr_; } - - /** - Resizes the buffer. If T is a POD type new elements may not be initialized. - */ - void resize(std::size_t new_size) { - reserve(new_size); - size_ = new_size; - } - - /** Reserves space to store at least *capacity* elements. */ - void reserve(std::size_t new_capacity) { - if (new_capacity > capacity_) - grow(new_capacity); - } - - void push_back(const T &value) { - reserve(size_ + 1); - ptr_[size_++] = value; - } - - /** Appends data to the end of the buffer. */ - template <typename U> - void append(const U *begin, const U *end); - - T &operator[](std::size_t index) { return ptr_[index]; } - const T &operator[](std::size_t index) const { return ptr_[index]; } -}; - -typedef basic_buffer<char> buffer; -typedef basic_buffer<wchar_t> wbuffer; - -// A container-backed buffer. -template <typename Container> -class container_buffer : public basic_buffer<typename Container::value_type> { - private: - Container &container_; - - protected: - void grow(std::size_t capacity) FMT_OVERRIDE { - container_.resize(capacity); - this->set(&container_[0], capacity); - } - - public: - explicit container_buffer(Container &c) - : basic_buffer<typename Container::value_type>(&c[0], c.size(), c.size()), - container_(c) {} -}; - -struct error_handler { - FMT_CONSTEXPR error_handler() {} - FMT_CONSTEXPR error_handler(const error_handler &) {} - - // This function is intentionally not constexpr to give a compile-time error. - FMT_API void on_error(const char *message); -}; - -// Formatting of wide characters and strings into a narrow output is disallowed: -// fmt::format("{}", L"test"); // error -// To fix this, use a wide format string: -// fmt::format(L"{}", L"test"); -template <typename Char> -inline void require_wchar() { - static_assert( - std::is_same<wchar_t, Char>::value, - "formatting of wide characters into a narrow output is disallowed"); -} - -template <typename Char> -struct named_arg_base; - -template <typename T, typename Char> -struct named_arg; - -template <typename T> -struct is_named_arg : std::false_type {}; - -template <typename T, typename Char> -struct is_named_arg<named_arg<T, Char>> : std::true_type {}; - -enum type { - none_type, named_arg_type, - // Integer types should go first, - int_type, uint_type, long_long_type, ulong_long_type, bool_type, char_type, - last_integer_type = char_type, - // followed by floating-point types. - double_type, long_double_type, last_numeric_type = long_double_type, - cstring_type, string_type, pointer_type, custom_type -}; - -FMT_CONSTEXPR bool is_integral(type t) { - FMT_ASSERT(t != internal::named_arg_type, "invalid argument type"); - return t > internal::none_type && t <= internal::last_integer_type; -} - -FMT_CONSTEXPR bool is_arithmetic(type t) { - FMT_ASSERT(t != internal::named_arg_type, "invalid argument type"); - return t > internal::none_type && t <= internal::last_numeric_type; -} - -template <typename T, typename Char, bool ENABLE = true> -struct convert_to_int { - enum { - value = !std::is_arithmetic<T>::value && std::is_convertible<T, int>::value - }; -}; - -template <typename Char> -struct string_value { - const Char *value; - std::size_t size; -}; - -template <typename Context> -struct custom_value { - const void *value; - void (*format)(const void *arg, Context &ctx); -}; - -// A formatting argument value. -template <typename Context> -class value { - public: - typedef typename Context::char_type char_type; - - union { - int int_value; - unsigned uint_value; - long long long_long_value; - unsigned long long ulong_long_value; - double double_value; - long double long_double_value; - const void *pointer; - string_value<char_type> string; - string_value<signed char> sstring; - string_value<unsigned char> ustring; - custom_value<Context> custom; - }; - - FMT_CONSTEXPR value(int val = 0) : int_value(val) {} - value(unsigned val) { uint_value = val; } - value(long long val) { long_long_value = val; } - value(unsigned long long val) { ulong_long_value = val; } - value(double val) { double_value = val; } - value(long double val) { long_double_value = val; } - value(const char_type *val) { string.value = val; } - value(const signed char *val) { - static_assert(std::is_same<char, char_type>::value, - "incompatible string types"); - sstring.value = val; - } - value(const unsigned char *val) { - static_assert(std::is_same<char, char_type>::value, - "incompatible string types"); - ustring.value = val; - } - value(basic_string_view<char_type> val) { - string.value = val.data(); - string.size = val.size(); - } - value(const void *val) { pointer = val; } - - template <typename T> - explicit value(const T &val) { - custom.value = &val; - custom.format = &format_custom_arg<T>; - } - - const named_arg_base<char_type> &as_named_arg() { - return *static_cast<const named_arg_base<char_type>*>(pointer); - } - - private: - // Formats an argument of a custom type, such as a user-defined class. - template <typename T> - static void format_custom_arg(const void *arg, Context &ctx) { - // Get the formatter type through the context to allow different contexts - // have different extension points, e.g. `formatter<T>` for `format` and - // `printf_formatter<T>` for `printf`. - typename Context::template formatter_type<T>::type f; - auto &&parse_ctx = ctx.parse_context(); - parse_ctx.advance_to(f.parse(parse_ctx)); - ctx.advance_to(f.format(*static_cast<const T*>(arg), ctx)); - } -}; - -template <typename Context, type TYPE> -struct typed_value : value<Context> { - static const type type_tag = TYPE; - - template <typename T> - FMT_CONSTEXPR typed_value(const T &val) : value<Context>(val) {} -}; - -template <typename Context, typename T> -FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T &value); - -#define FMT_MAKE_VALUE(TAG, ArgType, ValueType) \ - template <typename C> \ - FMT_CONSTEXPR typed_value<C, TAG> make_value(ArgType val) { \ - return static_cast<ValueType>(val); \ - } - -#define FMT_MAKE_VALUE_SAME(TAG, Type) \ - template <typename C> \ - FMT_CONSTEXPR typed_value<C, TAG> make_value(Type val) { \ - return val; \ - } - -FMT_MAKE_VALUE(bool_type, bool, int) -FMT_MAKE_VALUE(int_type, short, int) -FMT_MAKE_VALUE(uint_type, unsigned short, unsigned) -FMT_MAKE_VALUE_SAME(int_type, int) -FMT_MAKE_VALUE_SAME(uint_type, unsigned) - -// To minimize the number of types we need to deal with, long is translated -// either to int or to long long depending on its size. -typedef std::conditional<sizeof(long) == sizeof(int), int, long long>::type - long_type; -FMT_MAKE_VALUE( - (sizeof(long) == sizeof(int) ? int_type : long_long_type), long, long_type) -typedef std::conditional<sizeof(unsigned long) == sizeof(unsigned), - unsigned, unsigned long long>::type ulong_type; -FMT_MAKE_VALUE( - (sizeof(unsigned long) == sizeof(unsigned) ? uint_type : ulong_long_type), - unsigned long, ulong_type) - -FMT_MAKE_VALUE_SAME(long_long_type, long long) -FMT_MAKE_VALUE_SAME(ulong_long_type, unsigned long long) -FMT_MAKE_VALUE(int_type, signed char, int) -FMT_MAKE_VALUE(uint_type, unsigned char, unsigned) -FMT_MAKE_VALUE(char_type, char, int) - -#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED) -template <typename C> -inline typed_value<C, char_type> make_value(wchar_t val) { - require_wchar<typename C::char_type>(); - return static_cast<int>(val); -} -#endif - -FMT_MAKE_VALUE(double_type, float, double) -FMT_MAKE_VALUE_SAME(double_type, double) -FMT_MAKE_VALUE_SAME(long_double_type, long double) - -// Formatting of wide strings into a narrow buffer and multibyte strings -// into a wide buffer is disallowed (https://github.com/fmtlib/fmt/pull/606). -FMT_MAKE_VALUE(cstring_type, typename C::char_type*, - const typename C::char_type*) -FMT_MAKE_VALUE(cstring_type, const typename C::char_type*, - const typename C::char_type*) - -FMT_MAKE_VALUE(cstring_type, signed char*, const signed char*) -FMT_MAKE_VALUE_SAME(cstring_type, const signed char*) -FMT_MAKE_VALUE(cstring_type, unsigned char*, const unsigned char*) -FMT_MAKE_VALUE_SAME(cstring_type, const unsigned char*) -FMT_MAKE_VALUE_SAME(string_type, basic_string_view<typename C::char_type>) -FMT_MAKE_VALUE(string_type, - typename basic_string_view<typename C::char_type>::type, - basic_string_view<typename C::char_type>) -FMT_MAKE_VALUE(string_type, const std::basic_string<typename C::char_type>&, - basic_string_view<typename C::char_type>) -FMT_MAKE_VALUE(pointer_type, void*, const void*) -FMT_MAKE_VALUE_SAME(pointer_type, const void*) - -#if FMT_USE_NULLPTR -FMT_MAKE_VALUE(pointer_type, std::nullptr_t, const void*) -#endif - -// Formatting of arbitrary pointers is disallowed. If you want to output a -// pointer cast it to "void *" or "const void *". In particular, this forbids -// formatting of "[const] volatile char *" which is printed as bool by -// iostreams. -template <typename C, typename T> -typename std::enable_if<!std::is_same<T, typename C::char_type>::value>::type - make_value(const T *) { - static_assert(!sizeof(T), "formatting of non-void pointers is disallowed"); -} - -template <typename C, typename T> -inline typename std::enable_if< - std::is_enum<T>::value && convert_to_int<T, typename C::char_type>::value, - typed_value<C, int_type>>::type - make_value(const T &val) { return static_cast<int>(val); } - -template <typename C, typename T, typename Char = typename C::char_type> -inline typename std::enable_if< - !convert_to_int<T, Char>::value && - !std::is_convertible<T, basic_string_view<Char>>::value, - // Implicit conversion to std::string is not handled here because it's - // unsafe: https://github.com/fmtlib/fmt/issues/729 - typed_value<C, custom_type>>::type - make_value(const T &val) { return val; } - -template <typename C, typename T> -typed_value<C, named_arg_type> - make_value(const named_arg<T, typename C::char_type> &val) { - basic_format_arg<C> arg = make_arg<C>(val.value); - std::memcpy(val.data, &arg, sizeof(arg)); - return static_cast<const void*>(&val); -} - -// Maximum number of arguments with packed types. -enum { max_packed_args = 15 }; - -template <typename Context> -class arg_map; - -template <typename> -struct result_of; - -template <typename F, typename... Args> -struct result_of<F(Args...)> { - // A workaround for gcc 4.4 that doesn't allow F to be a reference. - typedef typename std::result_of< - typename std::remove_reference<F>::type(Args...)>::type type; -}; -} - -// A formatting argument. It is a trivially copyable/constructible type to -// allow storage in basic_memory_buffer. -template <typename Context> -class basic_format_arg { - private: - internal::value<Context> value_; - internal::type type_; - - template <typename ContextType, typename T> - friend FMT_CONSTEXPR basic_format_arg<ContextType> - internal::make_arg(const T &value); - - template <typename Visitor, typename Ctx> - friend FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type - visit(Visitor &&vis, basic_format_arg<Ctx> arg); - - friend class basic_format_args<Context>; - friend class internal::arg_map<Context>; - - typedef typename Context::char_type char_type; - - public: - class handle { - public: - explicit handle(internal::custom_value<Context> custom): custom_(custom) {} - - void format(Context &ctx) const { custom_.format(custom_.value, ctx); } - - private: - internal::custom_value<Context> custom_; - }; - - FMT_CONSTEXPR basic_format_arg() : type_(internal::none_type) {} - - FMT_EXPLICIT operator bool() const FMT_NOEXCEPT { - return type_ != internal::none_type; - } - - internal::type type() const { return type_; } - - bool is_integral() const { return internal::is_integral(type_); } - bool is_arithmetic() const { return internal::is_arithmetic(type_); } -}; - -// Parsing context consisting of a format string range being parsed and an -// argument counter for automatic indexing. -template <typename Char, typename ErrorHandler = internal::error_handler> -class basic_parse_context : private ErrorHandler { - private: - basic_string_view<Char> format_str_; - int next_arg_id_; - - public: - typedef Char char_type; - typedef typename basic_string_view<Char>::iterator iterator; - - explicit FMT_CONSTEXPR basic_parse_context( - basic_string_view<Char> format_str, ErrorHandler eh = ErrorHandler()) - : ErrorHandler(eh), format_str_(format_str), next_arg_id_(0) {} - - // Returns an iterator to the beginning of the format string range being - // parsed. - FMT_CONSTEXPR iterator begin() const FMT_NOEXCEPT { - return format_str_.begin(); - } - - // Returns an iterator past the end of the format string range being parsed. - FMT_CONSTEXPR iterator end() const FMT_NOEXCEPT { return format_str_.end(); } - - // Advances the begin iterator to ``it``. - FMT_CONSTEXPR void advance_to(iterator it) { - format_str_.remove_prefix(internal::to_unsigned(it - begin())); - } - - // Returns the next argument index. - FMT_CONSTEXPR unsigned next_arg_id(); - - FMT_CONSTEXPR bool check_arg_id(unsigned) { - if (next_arg_id_ > 0) { - on_error("cannot switch from automatic to manual argument indexing"); - return false; - } - next_arg_id_ = -1; - return true; - } - void check_arg_id(basic_string_view<Char>) {} - - FMT_CONSTEXPR void on_error(const char *message) { - ErrorHandler::on_error(message); - } - - FMT_CONSTEXPR ErrorHandler error_handler() const { return *this; } -}; - -typedef basic_parse_context<char> parse_context; -typedef basic_parse_context<wchar_t> wparse_context; - -namespace internal { -// A map from argument names to their values for named arguments. -template <typename Context> -class arg_map { - private: - FMT_DISALLOW_COPY_AND_ASSIGN(arg_map); - - typedef typename Context::char_type char_type; - - struct entry { - basic_string_view<char_type> name; - basic_format_arg<Context> arg; - }; - - entry *map_; - unsigned size_; - - void push_back(value<Context> val) { - const internal::named_arg_base<char_type> &named = val.as_named_arg(); - map_[size_] = entry{named.name, named.template deserialize<Context>()}; - ++size_; - } - - public: - arg_map() : map_(FMT_NULL), size_(0) {} - void init(const basic_format_args<Context> &args); - ~arg_map() { delete [] map_; } - - basic_format_arg<Context> find(basic_string_view<char_type> name) const { - // The list is unsorted, so just return the first matching name. - for (entry *it = map_, *end = map_ + size_; it != end; ++it) { - if (it->name == name) - return it->arg; - } - return basic_format_arg<Context>(); - } -}; - -template <typename OutputIt, typename Context, typename Char> -class context_base { - public: - typedef OutputIt iterator; - - private: - basic_parse_context<Char> parse_context_; - iterator out_; - basic_format_args<Context> args_; - - protected: - typedef Char char_type; - typedef basic_format_arg<Context> format_arg; - - context_base(OutputIt out, basic_string_view<char_type> format_str, - basic_format_args<Context> ctx_args) - : parse_context_(format_str), out_(out), args_(ctx_args) {} - - // Returns the argument with specified index. - format_arg do_get_arg(unsigned arg_id) { - format_arg arg = args_.get(arg_id); - if (!arg) - parse_context_.on_error("argument index out of range"); - return arg; - } - - // Checks if manual indexing is used and returns the argument with - // specified index. - format_arg get_arg(unsigned arg_id) { - return this->parse_context().check_arg_id(arg_id) ? - this->do_get_arg(arg_id) : format_arg(); - } - - public: - basic_parse_context<char_type> &parse_context() { - return parse_context_; - } - - internal::error_handler error_handler() { - return parse_context_.error_handler(); - } - - void on_error(const char *message) { parse_context_.on_error(message); } - - // Returns an iterator to the beginning of the output range. - iterator out() { return out_; } - iterator begin() { return out_; } // deprecated - - // Advances the begin iterator to ``it``. - void advance_to(iterator it) { out_ = it; } - - basic_format_args<Context> args() const { return args_; } -}; - -// Extracts a reference to the container from back_insert_iterator. -template <typename Container> -inline Container &get_container(std::back_insert_iterator<Container> it) { - typedef std::back_insert_iterator<Container> bi_iterator; - struct accessor: bi_iterator { - accessor(bi_iterator iter) : bi_iterator(iter) {} - using bi_iterator::container; - }; - return *accessor(it).container; -} -} // namespace internal - -// Formatting context. -template <typename OutputIt, typename Char> -class basic_format_context : - public internal::context_base< - OutputIt, basic_format_context<OutputIt, Char>, Char> { - public: - /** The character type for the output. */ - typedef Char char_type; - - // using formatter_type = formatter<T, char_type>; - template <typename T> - struct formatter_type { typedef formatter<T, char_type> type; }; - - private: - internal::arg_map<basic_format_context> map_; - - FMT_DISALLOW_COPY_AND_ASSIGN(basic_format_context); - - typedef internal::context_base<OutputIt, basic_format_context, Char> base; - typedef typename base::format_arg format_arg; - using base::get_arg; - - public: - using typename base::iterator; - - /** - Constructs a ``basic_format_context`` object. References to the arguments are - stored in the object so make sure they have appropriate lifetimes. - */ - basic_format_context(OutputIt out, basic_string_view<char_type> format_str, - basic_format_args<basic_format_context> ctx_args) - : base(out, format_str, ctx_args) {} - - format_arg next_arg() { - return this->do_get_arg(this->parse_context().next_arg_id()); - } - format_arg get_arg(unsigned arg_id) { return this->do_get_arg(arg_id); } - - // Checks if manual indexing is used and returns the argument with the - // specified name. - format_arg get_arg(basic_string_view<char_type> name); -}; - -template <typename Char> -struct buffer_context { - typedef basic_format_context< - std::back_insert_iterator<internal::basic_buffer<Char>>, Char> type; -}; -typedef buffer_context<char>::type format_context; -typedef buffer_context<wchar_t>::type wformat_context; - -namespace internal { -template <typename Context, typename T> -struct get_type { - typedef decltype(make_value<Context>( - declval<typename std::decay<T>::type&>())) value_type; - static const type value = value_type::type_tag; -}; - -template <typename Context> -FMT_CONSTEXPR unsigned long long get_types() { return 0; } - -template <typename Context, typename Arg, typename... Args> -FMT_CONSTEXPR unsigned long long get_types() { - return get_type<Context, Arg>::value | (get_types<Context, Args...>() << 4); -} - -template <typename Context, typename T> -FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T &value) { - basic_format_arg<Context> arg; - arg.type_ = get_type<Context, T>::value; - arg.value_ = make_value<Context>(value); - return arg; -} - -template <bool IS_PACKED, typename Context, typename T> -inline typename std::enable_if<IS_PACKED, value<Context>>::type - make_arg(const T &value) { - return make_value<Context>(value); -} - -template <bool IS_PACKED, typename Context, typename T> -inline typename std::enable_if<!IS_PACKED, basic_format_arg<Context>>::type - make_arg(const T &value) { - return make_arg<Context>(value); -} -} - -/** - \rst - An array of references to arguments. It can be implicitly converted into - `~fmt::basic_format_args` for passing into type-erased formatting functions - such as `~fmt::vformat`. - \endrst - */ -template <typename Context, typename ...Args> -class format_arg_store { - private: - static const size_t NUM_ARGS = sizeof...(Args); - - // Packed is a macro on MinGW so use IS_PACKED instead. - static const bool IS_PACKED = NUM_ARGS < internal::max_packed_args; - - typedef typename std::conditional<IS_PACKED, - internal::value<Context>, basic_format_arg<Context>>::type value_type; - - // If the arguments are not packed, add one more element to mark the end. - static const size_t DATA_SIZE = - NUM_ARGS + (IS_PACKED && NUM_ARGS != 0 ? 0 : 1); - value_type data_[DATA_SIZE]; - - friend class basic_format_args<Context>; - - static FMT_CONSTEXPR long long get_types() { - return IS_PACKED ? - static_cast<long long>(internal::get_types<Context, Args...>()) : - -static_cast<long long>(NUM_ARGS); - } - - public: -#if FMT_USE_CONSTEXPR - static constexpr long long TYPES = get_types(); -#else - static const long long TYPES; -#endif - -#if (FMT_GCC_VERSION && FMT_GCC_VERSION <= 405) || \ - (FMT_MSC_VER && FMT_MSC_VER <= 1800) - // Workaround array initialization issues in gcc <= 4.5 and MSVC <= 2013. - format_arg_store(const Args &... args) { - value_type init[DATA_SIZE] = - {internal::make_arg<IS_PACKED, Context>(args)...}; - std::memcpy(data_, init, sizeof(init)); - } -#else - format_arg_store(const Args &... args) - : data_{internal::make_arg<IS_PACKED, Context>(args)...} {} -#endif -}; - -#if !FMT_USE_CONSTEXPR -template <typename Context, typename ...Args> -const long long format_arg_store<Context, Args...>::TYPES = get_types(); -#endif - -/** - \rst - Constructs an `~fmt::format_arg_store` object that contains references to - arguments and can be implicitly converted to `~fmt::format_args`. `Context` can - be omitted in which case it defaults to `~fmt::context`. - \endrst - */ -template <typename Context, typename ...Args> -inline format_arg_store<Context, Args...> - make_format_args(const Args & ... args) { - return format_arg_store<Context, Args...>(args...); -} - -template <typename ...Args> -inline format_arg_store<format_context, Args...> - make_format_args(const Args & ... args) { - return format_arg_store<format_context, Args...>(args...); -} - -/** Formatting arguments. */ -template <typename Context> -class basic_format_args { - public: - typedef unsigned size_type; - typedef basic_format_arg<Context> format_arg; - - private: - // To reduce compiled code size per formatting function call, types of first - // max_packed_args arguments are passed in the types_ field. - unsigned long long types_; - union { - // If the number of arguments is less than max_packed_args, the argument - // values are stored in values_, otherwise they are stored in args_. - // This is done to reduce compiled code size as storing larger objects - // may require more code (at least on x86-64) even if the same amount of - // data is actually copied to stack. It saves ~10% on the bloat test. - const internal::value<Context> *values_; - const format_arg *args_; - }; - - typename internal::type type(unsigned index) const { - unsigned shift = index * 4; - unsigned long long mask = 0xf; - return static_cast<typename internal::type>( - (types_ & (mask << shift)) >> shift); - } - - friend class internal::arg_map<Context>; - - void set_data(const internal::value<Context> *values) { values_ = values; } - void set_data(const format_arg *args) { args_ = args; } - - format_arg do_get(size_type index) const { - long long signed_types = static_cast<long long>(types_); - if (signed_types < 0) { - unsigned long long num_args = static_cast<unsigned long long>(-signed_types); - return index < num_args ? args_[index] : format_arg(); - } - format_arg arg; - if (index > internal::max_packed_args) - return arg; - arg.type_ = type(index); - if (arg.type_ == internal::none_type) - return arg; - internal::value<Context> &val = arg.value_; - val = values_[index]; - return arg; - } - - public: - basic_format_args() : types_(0) {} - - /** - \rst - Constructs a `basic_format_args` object from `~fmt::format_arg_store`. - \endrst - */ - template <typename... Args> - basic_format_args(const format_arg_store<Context, Args...> &store) - : types_(static_cast<unsigned long long>(store.TYPES)) { - set_data(store.data_); - } - - /** Returns the argument at specified index. */ - format_arg get(size_type index) const { - format_arg arg = do_get(index); - return arg.type_ == internal::named_arg_type ? - arg.value_.as_named_arg().template deserialize<Context>() : arg; - } - - unsigned max_size() const { - long long signed_types = static_cast<long long>(types_); - return static_cast<unsigned>( - signed_types < 0 ? - -signed_types : static_cast<long long>(internal::max_packed_args)); - } -}; - -/** An alias to ``basic_format_args<context>``. */ -// It is a separate type rather than a typedef to make symbols readable. -struct format_args: basic_format_args<format_context> { - template <typename ...Args> - format_args(Args && ... arg) - : basic_format_args<format_context>(std::forward<Args>(arg)...) {} -}; -struct wformat_args : basic_format_args<wformat_context> { - template <typename ...Args> - wformat_args(Args && ... arg) - : basic_format_args<wformat_context>(std::forward<Args>(arg)...) {} -}; - -namespace internal { -template <typename Char> -struct named_arg_base { - basic_string_view<Char> name; - - // Serialized value<context>. - mutable char data[sizeof(basic_format_arg<format_context>)]; - - named_arg_base(basic_string_view<Char> nm) : name(nm) {} - - template <typename Context> - basic_format_arg<Context> deserialize() const { - basic_format_arg<Context> arg; - std::memcpy(&arg, data, sizeof(basic_format_arg<Context>)); - return arg; - } -}; - -template <typename T, typename Char> -struct named_arg : named_arg_base<Char> { - const T &value; - - named_arg(basic_string_view<Char> name, const T &val) - : named_arg_base<Char>(name), value(val) {} -}; -} - -/** - \rst - Returns a named argument to be used in a formatting function. - - **Example**:: - - fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23)); - \endrst - */ -template <typename T> -inline internal::named_arg<T, char> arg(string_view name, const T &arg) { - return internal::named_arg<T, char>(name, arg); -} - -template <typename T> -inline internal::named_arg<T, wchar_t> arg(wstring_view name, const T &arg) { - return internal::named_arg<T, wchar_t>(name, arg); -} - -// This function template is deleted intentionally to disable nested named -// arguments as in ``format("{}", arg("a", arg("b", 42)))``. -template <typename S, typename T, typename Char> -void arg(S, internal::named_arg<T, Char>) FMT_DELETED; - -#ifndef FMT_EXTENDED_COLORS -// color and (v)print_colored are deprecated. -enum color { black, red, green, yellow, blue, magenta, cyan, white }; -FMT_API void vprint_colored(color c, string_view format, format_args args); -FMT_API void vprint_colored(color c, wstring_view format, wformat_args args); -template <typename... Args> -inline void print_colored(color c, string_view format_str, - const Args & ... args) { - vprint_colored(c, format_str, make_format_args(args...)); -} -template <typename... Args> -inline void print_colored(color c, wstring_view format_str, - const Args & ... args) { - vprint_colored(c, format_str, make_format_args<wformat_context>(args...)); -} -#endif - -format_context::iterator vformat_to( - internal::buffer &buf, string_view format_str, format_args args); -wformat_context::iterator vformat_to( - internal::wbuffer &buf, wstring_view format_str, wformat_args args); - -template <typename Container> -struct is_contiguous : std::false_type {}; - -template <typename Char> -struct is_contiguous<std::basic_string<Char>> : std::true_type {}; - -template <typename Char> -struct is_contiguous<internal::basic_buffer<Char>> : std::true_type {}; - -/** Formats a string and writes the output to ``out``. */ -template <typename Container> -typename std::enable_if< - is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type - vformat_to(std::back_insert_iterator<Container> out, - string_view format_str, format_args args) { - auto& container = internal::get_container(out); - internal::container_buffer<Container> buf(container); - vformat_to(buf, format_str, args); - return std::back_inserter(container); -} - -template <typename Container> -typename std::enable_if< - is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type - vformat_to(std::back_insert_iterator<Container> out, - wstring_view format_str, wformat_args args) { - auto& container = internal::get_container(out); - internal::container_buffer<Container> buf(container); - vformat_to(buf, format_str, args); - return std::back_inserter(container); -} - -std::string vformat(string_view format_str, format_args args); -std::wstring vformat(wstring_view format_str, wformat_args args); - -/** - \rst - Formats arguments and returns the result as a string. - - **Example**:: - - #include <fmt/core.h> - std::string message = fmt::format("The answer is {}", 42); - \endrst -*/ -template <typename... Args> -inline std::string format(string_view format_str, const Args & ... args) { - // This should be just - // return vformat(format_str, make_format_args(args...)); - // but gcc has trouble optimizing the latter, so break it down. - format_arg_store<format_context, Args...> as{args...}; - return vformat(format_str, as); -} -template <typename... Args> -inline std::wstring format(wstring_view format_str, const Args & ... args) { - format_arg_store<wformat_context, Args...> as{args...}; - return vformat(format_str, as); -} - -FMT_API void vprint(std::FILE *f, string_view format_str, format_args args); -FMT_API void vprint(std::FILE *f, wstring_view format_str, wformat_args args); - -/** - \rst - Prints formatted data to the file *f*. - - **Example**:: - - fmt::print(stderr, "Don't {}!", "panic"); - \endrst - */ -template <typename... Args> -inline void print(std::FILE *f, string_view format_str, const Args & ... args) { - format_arg_store<format_context, Args...> as(args...); - vprint(f, format_str, as); -} -/** - Prints formatted data to the file *f* which should be in wide-oriented mode set - via ``fwide(f, 1)`` or ``_setmode(_fileno(f), _O_U8TEXT)`` on Windows. - */ -template <typename... Args> -inline void print(std::FILE *f, wstring_view format_str, const Args & ... args) { - format_arg_store<wformat_context, Args...> as(args...); - vprint(f, format_str, as); -} - -FMT_API void vprint(string_view format_str, format_args args); -FMT_API void vprint(wstring_view format_str, wformat_args args); - -/** - \rst - Prints formatted data to ``stdout``. - - **Example**:: - - fmt::print("Elapsed time: {0:.2f} seconds", 1.23); - \endrst - */ -template <typename... Args> -inline void print(string_view format_str, const Args & ... args) { - format_arg_store<format_context, Args...> as{args...}; - vprint(format_str, as); -} - -template <typename... Args> -inline void print(wstring_view format_str, const Args & ... args) { - format_arg_store<wformat_context, Args...> as(args...); - vprint(format_str, as); -} -FMT_END_NAMESPACE - -#endif // FMT_CORE_H_
--- a/libfmt/include/fmt/format-inl.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,564 +0,0 @@ -// Formatting library for C++ -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#ifndef FMT_FORMAT_INL_H_ -#define FMT_FORMAT_INL_H_ - -#include "format.h" - -#include <string.h> - -#include <cctype> -#include <cerrno> -#include <climits> -#include <cmath> -#include <cstdarg> -#include <cstddef> // for std::ptrdiff_t -#include <locale> - -#if defined(_WIN32) && defined(__MINGW32__) -# include <cstring> -#endif - -#if FMT_USE_WINDOWS_H -# if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN) -# define WIN32_LEAN_AND_MEAN -# endif -# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX) -# include <windows.h> -# else -# define NOMINMAX -# include <windows.h> -# undef NOMINMAX -# endif -#endif - -#if FMT_EXCEPTIONS -# define FMT_TRY try -# define FMT_CATCH(x) catch (x) -#else -# define FMT_TRY if (true) -# define FMT_CATCH(x) if (false) -#endif - -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable: 4127) // conditional expression is constant -# pragma warning(disable: 4702) // unreachable code -// Disable deprecation warning for strerror. The latter is not called but -// MSVC fails to detect it. -# pragma warning(disable: 4996) -#endif - -// Dummy implementations of strerror_r and strerror_s called if corresponding -// system functions are not available. -inline fmt::internal::null<> strerror_r(int, char *, ...) { - return fmt::internal::null<>(); -} -inline fmt::internal::null<> strerror_s(char *, std::size_t, ...) { - return fmt::internal::null<>(); -} - -FMT_BEGIN_NAMESPACE - -namespace { - -#ifndef _MSC_VER -# define FMT_SNPRINTF snprintf -#else // _MSC_VER -inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) { - va_list args; - va_start(args, format); - int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args); - va_end(args); - return result; -} -# define FMT_SNPRINTF fmt_snprintf -#endif // _MSC_VER - -#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT) -# define FMT_SWPRINTF snwprintf -#else -# define FMT_SWPRINTF swprintf -#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT) - -typedef void (*FormatFunc)(internal::buffer &, int, string_view); - -// Portable thread-safe version of strerror. -// Sets buffer to point to a string describing the error code. -// This can be either a pointer to a string stored in buffer, -// or a pointer to some static immutable string. -// Returns one of the following values: -// 0 - success -// ERANGE - buffer is not large enough to store the error message -// other - failure -// Buffer should be at least of size 1. -int safe_strerror( - int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT { - FMT_ASSERT(buffer != FMT_NULL && buffer_size != 0, "invalid buffer"); - - class dispatcher { - private: - int error_code_; - char *&buffer_; - std::size_t buffer_size_; - - // A noop assignment operator to avoid bogus warnings. - void operator=(const dispatcher &) {} - - // Handle the result of XSI-compliant version of strerror_r. - int handle(int result) { - // glibc versions before 2.13 return result in errno. - return result == -1 ? errno : result; - } - - // Handle the result of GNU-specific version of strerror_r. - int handle(char *message) { - // If the buffer is full then the message is probably truncated. - if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1) - return ERANGE; - buffer_ = message; - return 0; - } - - // Handle the case when strerror_r is not available. - int handle(internal::null<>) { - return fallback(strerror_s(buffer_, buffer_size_, error_code_)); - } - - // Fallback to strerror_s when strerror_r is not available. - int fallback(int result) { - // If the buffer is full then the message is probably truncated. - return result == 0 && strlen(buffer_) == buffer_size_ - 1 ? - ERANGE : result; - } - - // Fallback to strerror if strerror_r and strerror_s are not available. - int fallback(internal::null<>) { - errno = 0; - buffer_ = strerror(error_code_); - return errno; - } - - public: - dispatcher(int err_code, char *&buf, std::size_t buf_size) - : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {} - - int run() { - return handle(strerror_r(error_code_, buffer_, buffer_size_)); - } - }; - return dispatcher(error_code, buffer, buffer_size).run(); -} - -void format_error_code(internal::buffer &out, int error_code, - string_view message) FMT_NOEXCEPT { - // Report error code making sure that the output fits into - // inline_buffer_size to avoid dynamic memory allocation and potential - // bad_alloc. - out.resize(0); - static const char SEP[] = ": "; - static const char ERROR_STR[] = "error "; - // Subtract 2 to account for terminating null characters in SEP and ERROR_STR. - std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; - typedef internal::int_traits<int>::main_type main_type; - main_type abs_value = static_cast<main_type>(error_code); - if (internal::is_negative(error_code)) { - abs_value = 0 - abs_value; - ++error_code_size; - } - error_code_size += internal::count_digits(abs_value); - writer w(out); - if (message.size() <= inline_buffer_size - error_code_size) { - w.write(message); - w.write(SEP); - } - w.write(ERROR_STR); - w.write(error_code); - assert(out.size() <= inline_buffer_size); -} - -void report_error(FormatFunc func, int error_code, - string_view message) FMT_NOEXCEPT { - memory_buffer full_message; - func(full_message, error_code, message); - // Use Writer::data instead of Writer::c_str to avoid potential memory - // allocation. - std::fwrite(full_message.data(), full_message.size(), 1, stderr); - std::fputc('\n', stderr); -} -} // namespace - -class locale { - private: - std::locale locale_; - - public: - explicit locale(std::locale loc = std::locale()) : locale_(loc) {} - std::locale get() { return locale_; } -}; - -template <typename Char> -FMT_FUNC Char internal::thousands_sep(locale_provider *lp) { - std::locale loc = lp ? lp->locale().get() : std::locale(); - return std::use_facet<std::numpunct<Char>>(loc).thousands_sep(); -} - -FMT_FUNC void system_error::init( - int err_code, string_view format_str, format_args args) { - error_code_ = err_code; - memory_buffer buffer; - format_system_error(buffer, err_code, vformat(format_str, args)); - std::runtime_error &base = *this; - base = std::runtime_error(to_string(buffer)); -} - -namespace internal { -template <typename T> -int char_traits<char>::format_float( - char *buffer, std::size_t size, const char *format, int precision, T value) { - return precision < 0 ? - FMT_SNPRINTF(buffer, size, format, value) : - FMT_SNPRINTF(buffer, size, format, precision, value); -} - -template <typename T> -int char_traits<wchar_t>::format_float( - wchar_t *buffer, std::size_t size, const wchar_t *format, int precision, - T value) { - return precision < 0 ? - FMT_SWPRINTF(buffer, size, format, value) : - FMT_SWPRINTF(buffer, size, format, precision, value); -} - -template <typename T> -const char basic_data<T>::DIGITS[] = - "0001020304050607080910111213141516171819" - "2021222324252627282930313233343536373839" - "4041424344454647484950515253545556575859" - "6061626364656667686970717273747576777879" - "8081828384858687888990919293949596979899"; - -#define FMT_POWERS_OF_10(factor) \ - factor * 10, \ - factor * 100, \ - factor * 1000, \ - factor * 10000, \ - factor * 100000, \ - factor * 1000000, \ - factor * 10000000, \ - factor * 100000000, \ - factor * 1000000000 - -template <typename T> -const uint32_t basic_data<T>::POWERS_OF_10_32[] = { - 0, FMT_POWERS_OF_10(1) -}; - -template <typename T> -const uint64_t basic_data<T>::POWERS_OF_10_64[] = { - 0, - FMT_POWERS_OF_10(1), - FMT_POWERS_OF_10(1000000000ull), - 10000000000000000000ull -}; - -// Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340. -// These are generated by support/compute-powers.py. -template <typename T> -const uint64_t basic_data<T>::POW10_SIGNIFICANDS[] = { - 0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76, 0xcf42894a5dce35ea, - 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df, 0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, - 0xbe5691ef416bd60c, 0x8dd01fad907ffc3c, 0xd3515c2831559a83, 0x9d71ac8fada6c9b5, - 0xea9c227723ee8bcb, 0xaecc49914078536d, 0x823c12795db6ce57, 0xc21094364dfb5637, - 0x9096ea6f3848984f, 0xd77485cb25823ac7, 0xa086cfcd97bf97f4, 0xef340a98172aace5, - 0xb23867fb2a35b28e, 0x84c8d4dfd2c63f3b, 0xc5dd44271ad3cdba, 0x936b9fcebb25c996, - 0xdbac6c247d62a584, 0xa3ab66580d5fdaf6, 0xf3e2f893dec3f126, 0xb5b5ada8aaff80b8, - 0x87625f056c7c4a8b, 0xc9bcff6034c13053, 0x964e858c91ba2655, 0xdff9772470297ebd, - 0xa6dfbd9fb8e5b88f, 0xf8a95fcf88747d94, 0xb94470938fa89bcf, 0x8a08f0f8bf0f156b, - 0xcdb02555653131b6, 0x993fe2c6d07b7fac, 0xe45c10c42a2b3b06, 0xaa242499697392d3, - 0xfd87b5f28300ca0e, 0xbce5086492111aeb, 0x8cbccc096f5088cc, 0xd1b71758e219652c, - 0x9c40000000000000, 0xe8d4a51000000000, 0xad78ebc5ac620000, 0x813f3978f8940984, - 0xc097ce7bc90715b3, 0x8f7e32ce7bea5c70, 0xd5d238a4abe98068, 0x9f4f2726179a2245, - 0xed63a231d4c4fb27, 0xb0de65388cc8ada8, 0x83c7088e1aab65db, 0xc45d1df942711d9a, - 0x924d692ca61be758, 0xda01ee641a708dea, 0xa26da3999aef774a, 0xf209787bb47d6b85, - 0xb454e4a179dd1877, 0x865b86925b9bc5c2, 0xc83553c5c8965d3d, 0x952ab45cfa97a0b3, - 0xde469fbd99a05fe3, 0xa59bc234db398c25, 0xf6c69a72a3989f5c, 0xb7dcbf5354e9bece, - 0x88fcf317f22241e2, 0xcc20ce9bd35c78a5, 0x98165af37b2153df, 0xe2a0b5dc971f303a, - 0xa8d9d1535ce3b396, 0xfb9b7cd9a4a7443c, 0xbb764c4ca7a44410, 0x8bab8eefb6409c1a, - 0xd01fef10a657842c, 0x9b10a4e5e9913129, 0xe7109bfba19c0c9d, 0xac2820d9623bf429, - 0x80444b5e7aa7cf85, 0xbf21e44003acdd2d, 0x8e679c2f5e44ff8f, 0xd433179d9c8cb841, - 0x9e19db92b4e31ba9, 0xeb96bf6ebadf77d9, 0xaf87023b9bf0ee6b -}; - -// Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding -// to significands above. -template <typename T> -const int16_t basic_data<T>::POW10_EXPONENTS[] = { - -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954, - -927, -901, -874, -847, -821, -794, -768, -741, -715, -688, -661, - -635, -608, -582, -555, -529, -502, -475, -449, -422, -396, -369, - -343, -316, -289, -263, -236, -210, -183, -157, -130, -103, -77, - -50, -24, 3, 30, 56, 83, 109, 136, 162, 189, 216, - 242, 269, 295, 322, 348, 375, 402, 428, 455, 481, 508, - 534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800, - 827, 853, 880, 907, 933, 960, 986, 1013, 1039, 1066 -}; - -template <typename T> const char basic_data<T>::RESET_COLOR[] = "\x1b[0m"; -template <typename T> const wchar_t basic_data<T>::WRESET_COLOR[] = L"\x1b[0m"; - -FMT_FUNC fp operator*(fp x, fp y) { - // Multiply 32-bit parts of significands. - uint64_t mask = (1ULL << 32) - 1; - uint64_t a = x.f >> 32, b = x.f & mask; - uint64_t c = y.f >> 32, d = y.f & mask; - uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d; - // Compute mid 64-bit of result and round. - uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31); - return fp(ac + (ad >> 32) + (bc >> 32) + (mid >> 32), x.e + y.e + 64); -} - -FMT_FUNC fp get_cached_power(int min_exponent, int &pow10_exponent) { - const double one_over_log2_10 = 0.30102999566398114; // 1 / log2(10) - int index = static_cast<int>(std::ceil( - (min_exponent + fp::significand_size - 1) * one_over_log2_10)); - // Decimal exponent of the first (smallest) cached power of 10. - const int first_dec_exp = -348; - // Difference between two consecutive decimal exponents in cached powers of 10. - const int dec_exp_step = 8; - index = (index - first_dec_exp - 1) / dec_exp_step + 1; - pow10_exponent = first_dec_exp + index * dec_exp_step; - return fp(data::POW10_SIGNIFICANDS[index], data::POW10_EXPONENTS[index]); -} -} // namespace internal - -#if FMT_USE_WINDOWS_H - -FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s) { - static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16"; - if (s.size() > INT_MAX) - FMT_THROW(windows_error(ERROR_INVALID_PARAMETER, ERROR_MSG)); - int s_size = static_cast<int>(s.size()); - if (s_size == 0) { - // MultiByteToWideChar does not support zero length, handle separately. - buffer_.resize(1); - buffer_[0] = 0; - return; - } - - int length = MultiByteToWideChar( - CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, FMT_NULL, 0); - if (length == 0) - FMT_THROW(windows_error(GetLastError(), ERROR_MSG)); - buffer_.resize(length + 1); - length = MultiByteToWideChar( - CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length); - if (length == 0) - FMT_THROW(windows_error(GetLastError(), ERROR_MSG)); - buffer_[length] = 0; -} - -FMT_FUNC internal::utf16_to_utf8::utf16_to_utf8(wstring_view s) { - if (int error_code = convert(s)) { - FMT_THROW(windows_error(error_code, - "cannot convert string from UTF-16 to UTF-8")); - } -} - -FMT_FUNC int internal::utf16_to_utf8::convert(wstring_view s) { - if (s.size() > INT_MAX) - return ERROR_INVALID_PARAMETER; - int s_size = static_cast<int>(s.size()); - if (s_size == 0) { - // WideCharToMultiByte does not support zero length, handle separately. - buffer_.resize(1); - buffer_[0] = 0; - return 0; - } - - int length = WideCharToMultiByte( - CP_UTF8, 0, s.data(), s_size, FMT_NULL, 0, FMT_NULL, FMT_NULL); - if (length == 0) - return GetLastError(); - buffer_.resize(length + 1); - length = WideCharToMultiByte( - CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, FMT_NULL, FMT_NULL); - if (length == 0) - return GetLastError(); - buffer_[length] = 0; - return 0; -} - -FMT_FUNC void windows_error::init( - int err_code, string_view format_str, format_args args) { - error_code_ = err_code; - memory_buffer buffer; - internal::format_windows_error(buffer, err_code, vformat(format_str, args)); - std::runtime_error &base = *this; - base = std::runtime_error(to_string(buffer)); -} - -FMT_FUNC void internal::format_windows_error( - internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT { - FMT_TRY { - wmemory_buffer buf; - buf.resize(inline_buffer_size); - for (;;) { - wchar_t *system_message = &buf[0]; - int result = FormatMessageW( - FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, - FMT_NULL, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), - system_message, static_cast<uint32_t>(buf.size()), FMT_NULL); - if (result != 0) { - utf16_to_utf8 utf8_message; - if (utf8_message.convert(system_message) == ERROR_SUCCESS) { - writer w(out); - w.write(message); - w.write(": "); - w.write(utf8_message); - return; - } - break; - } - if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) - break; // Can't get error message, report error code instead. - buf.resize(buf.size() * 2); - } - } FMT_CATCH(...) {} - format_error_code(out, error_code, message); -} - -#endif // FMT_USE_WINDOWS_H - -FMT_FUNC void format_system_error( - internal::buffer &out, int error_code, string_view message) FMT_NOEXCEPT { - FMT_TRY { - memory_buffer buf; - buf.resize(inline_buffer_size); - for (;;) { - char *system_message = &buf[0]; - int result = safe_strerror(error_code, system_message, buf.size()); - if (result == 0) { - writer w(out); - w.write(message); - w.write(": "); - w.write(system_message); - return; - } - if (result != ERANGE) - break; // Can't get error message, report error code instead. - buf.resize(buf.size() * 2); - } - } FMT_CATCH(...) {} - format_error_code(out, error_code, message); -} - -template <typename Char> -void basic_fixed_buffer<Char>::grow(std::size_t) { - FMT_THROW(std::runtime_error("buffer overflow")); -} - -FMT_FUNC void internal::error_handler::on_error(const char *message) { - FMT_THROW(format_error(message)); -} - -FMT_FUNC void report_system_error( - int error_code, fmt::string_view message) FMT_NOEXCEPT { - report_error(format_system_error, error_code, message); -} - -#if FMT_USE_WINDOWS_H -FMT_FUNC void report_windows_error( - int error_code, fmt::string_view message) FMT_NOEXCEPT { - report_error(internal::format_windows_error, error_code, message); -} -#endif - -FMT_FUNC void vprint(std::FILE *f, string_view format_str, format_args args) { - memory_buffer buffer; - vformat_to(buffer, format_str, args); - std::fwrite(buffer.data(), 1, buffer.size(), f); -} - -FMT_FUNC void vprint(std::FILE *f, wstring_view format_str, wformat_args args) { - wmemory_buffer buffer; - vformat_to(buffer, format_str, args); - std::fwrite(buffer.data(), sizeof(wchar_t), buffer.size(), f); -} - -FMT_FUNC void vprint(string_view format_str, format_args args) { - vprint(stdout, format_str, args); -} - -FMT_FUNC void vprint(wstring_view format_str, wformat_args args) { - vprint(stdout, format_str, args); -} - -#ifndef FMT_EXTENDED_COLORS -FMT_FUNC void vprint_colored(color c, string_view format, format_args args) { - char escape[] = "\x1b[30m"; - escape[3] = static_cast<char>('0' + c); - std::fputs(escape, stdout); - vprint(format, args); - std::fputs(internal::data::RESET_COLOR, stdout); -} - -FMT_FUNC void vprint_colored(color c, wstring_view format, wformat_args args) { - wchar_t escape[] = L"\x1b[30m"; - escape[3] = static_cast<wchar_t>('0' + c); - std::fputws(escape, stdout); - vprint(format, args); - std::fputws(internal::data::WRESET_COLOR, stdout); -} -#else -namespace internal { -FMT_CONSTEXPR void to_esc(uint8_t c, char out[], int offset) { - out[offset + 0] = static_cast<char>('0' + c / 100); - out[offset + 1] = static_cast<char>('0' + c / 10 % 10); - out[offset + 2] = static_cast<char>('0' + c % 10); -} -} // namespace internal - -FMT_FUNC void vprint_rgb(rgb fd, string_view format, format_args args) { - char escape_fd[] = "\x1b[38;2;000;000;000m"; - internal::to_esc(fd.r, escape_fd, 7); - internal::to_esc(fd.g, escape_fd, 11); - internal::to_esc(fd.b, escape_fd, 15); - - std::fputs(escape_fd, stdout); - vprint(format, args); - std::fputs(internal::data::RESET_COLOR, stdout); -} - -FMT_FUNC void vprint_rgb(rgb fd, rgb bg, string_view format, format_args args) { - char escape_fd[] = "\x1b[38;2;000;000;000m"; // foreground color - char escape_bg[] = "\x1b[48;2;000;000;000m"; // background color - internal::to_esc(fd.r, escape_fd, 7); - internal::to_esc(fd.g, escape_fd, 11); - internal::to_esc(fd.b, escape_fd, 15); - - internal::to_esc(bg.r, escape_bg, 7); - internal::to_esc(bg.g, escape_bg, 11); - internal::to_esc(bg.b, escape_bg, 15); - - std::fputs(escape_fd, stdout); - std::fputs(escape_bg, stdout); - vprint(format, args); - std::fputs(internal::data::RESET_COLOR, stdout); -} -#endif - -FMT_FUNC locale locale_provider::locale() { return fmt::locale(); } - -FMT_END_NAMESPACE - -#ifdef _MSC_VER -# pragma warning(pop) -#endif - -#endif // FMT_FORMAT_INL_H_
--- a/libfmt/include/fmt/format.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,3937 +0,0 @@ -/* - Formatting library for C++ - - Copyright (c) 2012 - present, Victor Zverovich - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - 1. Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND - ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR - ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef FMT_FORMAT_H_ -#define FMT_FORMAT_H_ - -#include <algorithm> -#include <cassert> -#include <cmath> -#include <cstring> -#include <limits> -#include <memory> -#include <stdexcept> -#include <stdint.h> - -#ifdef __clang__ -# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) -#else -# define FMT_CLANG_VERSION 0 -#endif - -#ifdef __INTEL_COMPILER -# define FMT_ICC_VERSION __INTEL_COMPILER -#elif defined(__ICL) -# define FMT_ICC_VERSION __ICL -#else -# define FMT_ICC_VERSION 0 -#endif - -#include "core.h" - -#if FMT_GCC_VERSION >= 406 || FMT_CLANG_VERSION -# pragma GCC diagnostic push - -// Disable the warning about declaration shadowing because it affects too -// many valid cases. -# pragma GCC diagnostic ignored "-Wshadow" - -// Disable the warning about implicit conversions that may change the sign of -// an integer; silencing it otherwise would require many explicit casts. -# pragma GCC diagnostic ignored "-Wsign-conversion" -#endif - -#ifdef _SECURE_SCL -# define FMT_SECURE_SCL _SECURE_SCL -#else -# define FMT_SECURE_SCL 0 -#endif - -#if FMT_SECURE_SCL -# include <iterator> -#endif - -#ifdef __has_builtin -# define FMT_HAS_BUILTIN(x) __has_builtin(x) -#else -# define FMT_HAS_BUILTIN(x) 0 -#endif - -#ifdef __GNUC_LIBSTD__ -# define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__) -#endif - -#ifndef FMT_THROW -# if FMT_EXCEPTIONS -# if FMT_MSC_VER -FMT_BEGIN_NAMESPACE -namespace internal { -template <typename Exception> -inline void do_throw(const Exception &x) { - // Silence unreachable code warnings in MSVC because these are nearly - // impossible to fix in a generic code. - volatile bool b = true; - if (b) - throw x; -} -} -FMT_END_NAMESPACE -# define FMT_THROW(x) fmt::internal::do_throw(x) -# else -# define FMT_THROW(x) throw x -# endif -# else -# define FMT_THROW(x) do { static_cast<void>(sizeof(x)); assert(false); } while(false); -# endif -#endif - -#ifndef FMT_USE_USER_DEFINED_LITERALS -// For Intel's compiler both it and the system gcc/msc must support UDLs. -# if (FMT_HAS_FEATURE(cxx_user_literals) || \ - FMT_GCC_VERSION >= 407 || FMT_MSC_VER >= 1900) && \ - (!FMT_ICC_VERSION || FMT_ICC_VERSION >= 1500) -# define FMT_USE_USER_DEFINED_LITERALS 1 -# else -# define FMT_USE_USER_DEFINED_LITERALS 0 -# endif -#endif - -#if FMT_USE_USER_DEFINED_LITERALS && !defined(FMT_ICC_VERSION) && \ - ((FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L) || \ - (defined(FMT_CLANG_VERSION) && FMT_CLANG_VERSION >= 304)) -# define FMT_UDL_TEMPLATE 1 -#else -# define FMT_UDL_TEMPLATE 0 -#endif - -#ifndef FMT_USE_EXTERN_TEMPLATES -# ifndef FMT_HEADER_ONLY -# define FMT_USE_EXTERN_TEMPLATES \ - ((FMT_CLANG_VERSION >= 209 && __cplusplus >= 201103L) || \ - (FMT_GCC_VERSION >= 303 && FMT_HAS_GXX_CXX11)) -# else -# define FMT_USE_EXTERN_TEMPLATES 0 -# endif -#endif - -#if FMT_HAS_GXX_CXX11 || FMT_HAS_FEATURE(cxx_trailing_return) || \ - FMT_MSC_VER >= 1600 -# define FMT_USE_TRAILING_RETURN 1 -#else -# define FMT_USE_TRAILING_RETURN 0 -#endif - -#if FMT_HAS_GXX_CXX11 || FMT_HAS_FEATURE(cxx_rvalue_references) || \ - FMT_MSC_VER >= 1600 -# define FMT_USE_RVALUE_REFERENCES 1 -#else -# define FMT_USE_RVALUE_REFERENCES 0 -#endif - -#ifndef FMT_USE_GRISU -# define FMT_USE_GRISU 0 -#endif - -// __builtin_clz is broken in clang with Microsoft CodeGen: -// https://github.com/fmtlib/fmt/issues/519 -#ifndef _MSC_VER -# if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz) -# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) -# endif - -# if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll) -# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) -# endif -#endif - -// A workaround for gcc 4.4 that doesn't support union members with ctors. -#if (FMT_GCC_VERSION && FMT_GCC_VERSION <= 404) || \ - (FMT_MSC_VER && FMT_MSC_VER <= 1800) -# define FMT_UNION struct -#else -# define FMT_UNION union -#endif - -// Some compilers masquerade as both MSVC and GCC-likes or otherwise support -// __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the -// MSVC intrinsics if the clz and clzll builtins are not available. -#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && !defined(_MANAGED) -# include <intrin.h> // _BitScanReverse, _BitScanReverse64 - -FMT_BEGIN_NAMESPACE -namespace internal { -// Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning. -# ifndef __clang__ -# pragma intrinsic(_BitScanReverse) -# endif -inline uint32_t clz(uint32_t x) { - unsigned long r = 0; - _BitScanReverse(&r, x); - - assert(x != 0); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. -# pragma warning(suppress: 6102) - return 31 - r; -} -# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n) - -# if defined(_WIN64) && !defined(__clang__) -# pragma intrinsic(_BitScanReverse64) -# endif - -inline uint32_t clzll(uint64_t x) { - unsigned long r = 0; -# ifdef _WIN64 - _BitScanReverse64(&r, x); -# else - // Scan the high 32 bits. - if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32))) - return 63 - (r + 32); - - // Scan the low 32 bits. - _BitScanReverse(&r, static_cast<uint32_t>(x)); -# endif - - assert(x != 0); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. -# pragma warning(suppress: 6102) - return 63 - r; -} -# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n) -} -FMT_END_NAMESPACE -#endif - -FMT_BEGIN_NAMESPACE -namespace internal { - -// An equivalent of `*reinterpret_cast<Dest*>(&source)` that doesn't produce -// undefined behavior (e.g. due to type aliasing). -// Example: uint64_t d = bit_cast<uint64_t>(2.718); -template <typename Dest, typename Source> -inline Dest bit_cast(const Source& source) { - static_assert(sizeof(Dest) == sizeof(Source), "size mismatch"); - Dest dest; - std::memcpy(&dest, &source, sizeof(dest)); - return dest; -} - -// An implementation of begin and end for pre-C++11 compilers such as gcc 4. -template <typename C> -FMT_CONSTEXPR auto begin(const C &c) -> decltype(c.begin()) { - return c.begin(); -} -template <typename T, std::size_t N> -FMT_CONSTEXPR T *begin(T (&array)[N]) FMT_NOEXCEPT { return array; } -template <typename C> -FMT_CONSTEXPR auto end(const C &c) -> decltype(c.end()) { return c.end(); } -template <typename T, std::size_t N> -FMT_CONSTEXPR T *end(T (&array)[N]) FMT_NOEXCEPT { return array + N; } - -// For std::result_of in gcc 4.4. -template <typename Result> -struct function { - template <typename T> - struct result { typedef Result type; }; -}; - -struct dummy_int { - int data[2]; - operator int() const { return 0; } -}; -typedef std::numeric_limits<internal::dummy_int> fputil; - -// Dummy implementations of system functions such as signbit and ecvt called -// if the latter are not available. -inline dummy_int signbit(...) { return dummy_int(); } -inline dummy_int _ecvt_s(...) { return dummy_int(); } -inline dummy_int isinf(...) { return dummy_int(); } -inline dummy_int _finite(...) { return dummy_int(); } -inline dummy_int isnan(...) { return dummy_int(); } -inline dummy_int _isnan(...) { return dummy_int(); } - -// A handmade floating-point number f * pow(2, e). -class fp { - private: - typedef uint64_t significand_type; - - // All sizes are in bits. - static FMT_CONSTEXPR_DECL const int char_size = - std::numeric_limits<unsigned char>::digits; - // Subtract 1 to account for an implicit most significant bit in the - // normalized form. - static FMT_CONSTEXPR_DECL const int double_significand_size = - std::numeric_limits<double>::digits - 1; - static FMT_CONSTEXPR_DECL const uint64_t implicit_bit = - 1ull << double_significand_size; - - public: - significand_type f; - int e; - - static FMT_CONSTEXPR_DECL const int significand_size = - sizeof(significand_type) * char_size; - - fp(uint64_t f, int e): f(f), e(e) {} - - // Constructs fp from an IEEE754 double. It is a template to prevent compile - // errors on platforms where double is not IEEE754. - template <typename Double> - explicit fp(Double d) { - // Assume double is in the format [sign][exponent][significand]. - typedef std::numeric_limits<Double> limits; - const int double_size = sizeof(Double) * char_size; - const int exponent_size = - double_size - double_significand_size - 1; // -1 for sign - const uint64_t significand_mask = implicit_bit - 1; - const uint64_t exponent_mask = (~0ull >> 1) & ~significand_mask; - const int exponent_bias = (1 << exponent_size) - limits::max_exponent - 1; - auto u = bit_cast<uint64_t>(d); - auto biased_e = (u & exponent_mask) >> double_significand_size; - f = u & significand_mask; - if (biased_e != 0) - f += implicit_bit; - else - biased_e = 1; // Subnormals use biased exponent 1 (min exponent). - e = static_cast<int>(biased_e - exponent_bias - double_significand_size); - } - - // Normalizes the value converted from double and multiplied by (1 << SHIFT). - template <int SHIFT = 0> - void normalize() { - // Handle subnormals. - auto shifted_implicit_bit = implicit_bit << SHIFT; - while ((f & shifted_implicit_bit) == 0) { - f <<= 1; - --e; - } - // Subtract 1 to account for hidden bit. - auto offset = significand_size - double_significand_size - SHIFT - 1; - f <<= offset; - e -= offset; - } -}; - -// Returns an fp number representing x - y. Result may not be normalized. -inline fp operator-(fp x, fp y) { - FMT_ASSERT(x.f >= y.f && x.e == y.e, "invalid operands"); - return fp(x.f - y.f, x.e); -} - -// Computes an fp number r with r.f = x.f * y.f / pow(2, 64) rounded to nearest -// with half-up tie breaking, r.e = x.e + y.e + 64. Result may not be normalized. -fp operator*(fp x, fp y); - -// Returns cached power (of 10) c_k = c_k.f * pow(2, c_k.e) such that its -// (binary) exponent satisfies min_exponent <= c_k.e <= min_exponent + 3. -fp get_cached_power(int min_exponent, int &pow10_exponent); - -template <typename Allocator> -typename Allocator::value_type *allocate(Allocator& alloc, std::size_t n) { -#if __cplusplus >= 201103L || FMT_MSC_VER >= 1700 - return std::allocator_traits<Allocator>::allocate(alloc, n); -#else - return alloc.allocate(n); -#endif -} - -// A helper function to suppress bogus "conditional expression is constant" -// warnings. -template <typename T> -inline T const_check(T value) { return value; } -} // namespace internal -FMT_END_NAMESPACE - -namespace std { -// Standard permits specialization of std::numeric_limits. This specialization -// is used to resolve ambiguity between isinf and std::isinf in glibc: -// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891 -// and the same for isnan and signbit. -template <> -class numeric_limits<fmt::internal::dummy_int> : - public std::numeric_limits<int> { - public: - // Portable version of isinf. - template <typename T> - static bool isinfinity(T x) { - using namespace fmt::internal; - // The resolution "priority" is: - // isinf macro > std::isinf > ::isinf > fmt::internal::isinf - if (const_check(sizeof(isinf(x)) != sizeof(dummy_int))) - return isinf(x) != 0; - return !_finite(static_cast<double>(x)); - } - - // Portable version of isnan. - template <typename T> - static bool isnotanumber(T x) { - using namespace fmt::internal; - if (const_check(sizeof(isnan(x)) != sizeof(fmt::internal::dummy_int))) - return isnan(x) != 0; - return _isnan(static_cast<double>(x)) != 0; - } - - // Portable version of signbit. - static bool isnegative(double x) { - using namespace fmt::internal; - if (const_check(sizeof(signbit(x)) != sizeof(fmt::internal::dummy_int))) - return signbit(x) != 0; - if (x < 0) return true; - if (!isnotanumber(x)) return false; - int dec = 0, sign = 0; - char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail. - _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign); - return sign != 0; - } -}; -} // namespace std - -FMT_BEGIN_NAMESPACE -template <typename Range> -class basic_writer; - -template <typename OutputIt, typename T = typename OutputIt::value_type> -class output_range { - private: - OutputIt it_; - - // Unused yet. - typedef void sentinel; - sentinel end() const; - - public: - typedef OutputIt iterator; - typedef T value_type; - - explicit output_range(OutputIt it): it_(it) {} - OutputIt begin() const { return it_; } -}; - -// A range where begin() returns back_insert_iterator. -template <typename Container> -class back_insert_range: - public output_range<std::back_insert_iterator<Container>> { - typedef output_range<std::back_insert_iterator<Container>> base; - public: - typedef typename Container::value_type value_type; - - back_insert_range(Container &c): base(std::back_inserter(c)) {} - back_insert_range(typename base::iterator it): base(it) {} -}; - -typedef basic_writer<back_insert_range<internal::buffer>> writer; -typedef basic_writer<back_insert_range<internal::wbuffer>> wwriter; - -/** A formatting error such as invalid format string. */ -class format_error : public std::runtime_error { - public: - explicit format_error(const char *message) - : std::runtime_error(message) {} - - explicit format_error(const std::string &message) - : std::runtime_error(message) {} -}; - -namespace internal { - -#if FMT_SECURE_SCL -template <typename T> -struct checked { typedef stdext::checked_array_iterator<T*> type; }; - -// Make a checked iterator to avoid warnings on MSVC. -template <typename T> -inline stdext::checked_array_iterator<T*> make_checked(T *p, std::size_t size) { - return {p, size}; -} -#else -template <typename T> -struct checked { typedef T *type; }; -template <typename T> -inline T *make_checked(T *p, std::size_t) { return p; } -#endif - -template <typename T> -template <typename U> -void basic_buffer<T>::append(const U *begin, const U *end) { - std::size_t new_size = size_ + internal::to_unsigned(end - begin); - reserve(new_size); - std::uninitialized_copy(begin, end, - internal::make_checked(ptr_, capacity_) + size_); - size_ = new_size; -} -} // namespace internal - -// A wrapper around std::locale used to reduce compile times since <locale> -// is very heavy. -class locale; - -class locale_provider { - public: - virtual ~locale_provider() {} - virtual fmt::locale locale(); -}; - -// The number of characters to store in the basic_memory_buffer object itself -// to avoid dynamic memory allocation. -enum { inline_buffer_size = 500 }; - -/** - \rst - A dynamically growing memory buffer for trivially copyable/constructible types - with the first ``SIZE`` elements stored in the object itself. - - You can use one of the following typedefs for common character types: - - +----------------+------------------------------+ - | Type | Definition | - +================+==============================+ - | memory_buffer | basic_memory_buffer<char> | - +----------------+------------------------------+ - | wmemory_buffer | basic_memory_buffer<wchar_t> | - +----------------+------------------------------+ - - **Example**:: - - fmt::memory_buffer out; - format_to(out, "The answer is {}.", 42); - - This will write the following output to the ``out`` object: - - .. code-block:: none - - The answer is 42. - - The output can be converted to an ``std::string`` with ``to_string(out)``. - \endrst - */ -template <typename T, std::size_t SIZE = inline_buffer_size, - typename Allocator = std::allocator<T> > -class basic_memory_buffer: private Allocator, public internal::basic_buffer<T> { - private: - T store_[SIZE]; - - // Deallocate memory allocated by the buffer. - void deallocate() { - T* data = this->data(); - if (data != store_) Allocator::deallocate(data, this->capacity()); - } - - protected: - void grow(std::size_t size) FMT_OVERRIDE; - - public: - explicit basic_memory_buffer(const Allocator &alloc = Allocator()) - : Allocator(alloc) { - this->set(store_, SIZE); - } - ~basic_memory_buffer() { deallocate(); } - - private: - // Move data from other to this buffer. - void move(basic_memory_buffer &other) { - Allocator &this_alloc = *this, &other_alloc = other; - this_alloc = std::move(other_alloc); - T* data = other.data(); - std::size_t size = other.size(), capacity = other.capacity(); - if (data == other.store_) { - this->set(store_, capacity); - std::uninitialized_copy(other.store_, other.store_ + size, - internal::make_checked(store_, capacity)); - } else { - this->set(data, capacity); - // Set pointer to the inline array so that delete is not called - // when deallocating. - other.set(other.store_, 0); - } - this->resize(size); - } - - public: - /** - \rst - Constructs a :class:`fmt::basic_memory_buffer` object moving the content - of the other object to it. - \endrst - */ - basic_memory_buffer(basic_memory_buffer &&other) { - move(other); - } - - /** - \rst - Moves the content of the other ``basic_memory_buffer`` object to this one. - \endrst - */ - basic_memory_buffer &operator=(basic_memory_buffer &&other) { - assert(this != &other); - deallocate(); - move(other); - return *this; - } - - // Returns a copy of the allocator associated with this buffer. - Allocator get_allocator() const { return *this; } -}; - -template <typename T, std::size_t SIZE, typename Allocator> -void basic_memory_buffer<T, SIZE, Allocator>::grow(std::size_t size) { - std::size_t old_capacity = this->capacity(); - std::size_t new_capacity = old_capacity + old_capacity / 2; - if (size > new_capacity) - new_capacity = size; - T *old_data = this->data(); - T *new_data = internal::allocate<Allocator>(*this, new_capacity); - // The following code doesn't throw, so the raw pointer above doesn't leak. - std::uninitialized_copy(old_data, old_data + this->size(), - internal::make_checked(new_data, new_capacity)); - this->set(new_data, new_capacity); - // deallocate must not throw according to the standard, but even if it does, - // the buffer already uses the new storage and will deallocate it in - // destructor. - if (old_data != store_) - Allocator::deallocate(old_data, old_capacity); -} - -typedef basic_memory_buffer<char> memory_buffer; -typedef basic_memory_buffer<wchar_t> wmemory_buffer; - -/** - \rst - A fixed-size memory buffer. For a dynamically growing buffer use - :class:`fmt::basic_memory_buffer`. - - Trying to increase the buffer size past the initial capacity will throw - ``std::runtime_error``. - \endrst - */ -template <typename Char> -class basic_fixed_buffer : public internal::basic_buffer<Char> { - public: - /** - \rst - Constructs a :class:`fmt::basic_fixed_buffer` object for *array* of the - given size. - \endrst - */ - basic_fixed_buffer(Char *array, std::size_t size) { - this->set(array, size); - } - - /** - \rst - Constructs a :class:`fmt::basic_fixed_buffer` object for *array* of the - size known at compile time. - \endrst - */ - template <std::size_t SIZE> - explicit basic_fixed_buffer(Char (&array)[SIZE]) { - this->set(array, SIZE); - } - - protected: - FMT_API void grow(std::size_t size) FMT_OVERRIDE; -}; - -namespace internal { - -template <typename Char> -struct char_traits; - -template <> -struct char_traits<char> { - // Formats a floating-point number. - template <typename T> - FMT_API static int format_float(char *buffer, std::size_t size, - const char *format, int precision, T value); -}; - -template <> -struct char_traits<wchar_t> { - template <typename T> - FMT_API static int format_float(wchar_t *buffer, std::size_t size, - const wchar_t *format, int precision, T value); -}; - -#if FMT_USE_EXTERN_TEMPLATES -extern template int char_traits<char>::format_float<double>( - char *buffer, std::size_t size, const char* format, int precision, - double value); -extern template int char_traits<char>::format_float<long double>( - char *buffer, std::size_t size, const char* format, int precision, - long double value); - -extern template int char_traits<wchar_t>::format_float<double>( - wchar_t *buffer, std::size_t size, const wchar_t* format, int precision, - double value); -extern template int char_traits<wchar_t>::format_float<long double>( - wchar_t *buffer, std::size_t size, const wchar_t* format, int precision, - long double value); -#endif - -template <typename Container> -inline typename std::enable_if< - is_contiguous<Container>::value, - typename checked<typename Container::value_type>::type>::type - reserve(std::back_insert_iterator<Container> &it, std::size_t n) { - Container &c = internal::get_container(it); - std::size_t size = c.size(); - c.resize(size + n); - return make_checked(&c[size], n); -} - -template <typename Iterator> -inline Iterator &reserve(Iterator &it, std::size_t) { return it; } - -template <typename Char> -class null_terminating_iterator; - -template <typename Char> -FMT_CONSTEXPR_DECL const Char *pointer_from(null_terminating_iterator<Char> it); - -// An iterator that produces a null terminator on *end. This simplifies parsing -// and allows comparing the performance of processing a null-terminated string -// vs string_view. -template <typename Char> -class null_terminating_iterator { - public: - typedef std::ptrdiff_t difference_type; - typedef Char value_type; - typedef const Char* pointer; - typedef const Char& reference; - typedef std::random_access_iterator_tag iterator_category; - - null_terminating_iterator() : ptr_(0), end_(0) {} - - FMT_CONSTEXPR null_terminating_iterator(const Char *ptr, const Char *end) - : ptr_(ptr), end_(end) {} - - template <typename Range> - FMT_CONSTEXPR explicit null_terminating_iterator(const Range &r) - : ptr_(r.begin()), end_(r.end()) {} - - null_terminating_iterator &operator=(const Char *ptr) { - assert(ptr <= end_); - ptr_ = ptr; - return *this; - } - - FMT_CONSTEXPR Char operator*() const { - return ptr_ != end_ ? *ptr_ : 0; - } - - FMT_CONSTEXPR null_terminating_iterator operator++() { - ++ptr_; - return *this; - } - - FMT_CONSTEXPR null_terminating_iterator operator++(int) { - null_terminating_iterator result(*this); - ++ptr_; - return result; - } - - FMT_CONSTEXPR null_terminating_iterator operator--() { - --ptr_; - return *this; - } - - FMT_CONSTEXPR null_terminating_iterator operator+(difference_type n) { - return null_terminating_iterator(ptr_ + n, end_); - } - - FMT_CONSTEXPR null_terminating_iterator operator-(difference_type n) { - return null_terminating_iterator(ptr_ - n, end_); - } - - FMT_CONSTEXPR null_terminating_iterator operator+=(difference_type n) { - ptr_ += n; - return *this; - } - - FMT_CONSTEXPR difference_type operator-( - null_terminating_iterator other) const { - return ptr_ - other.ptr_; - } - - FMT_CONSTEXPR bool operator!=(null_terminating_iterator other) const { - return ptr_ != other.ptr_; - } - - bool operator>=(null_terminating_iterator other) const { - return ptr_ >= other.ptr_; - } - - // This should be a friend specialization pointer_from<Char> but the latter - // doesn't compile by gcc 5.1 due to a compiler bug. - template <typename CharT> - friend FMT_CONSTEXPR_DECL const CharT *pointer_from( - null_terminating_iterator<CharT> it); - - private: - const Char *ptr_; - const Char *end_; -}; - -template <typename T> -FMT_CONSTEXPR const T *pointer_from(const T *p) { return p; } - -template <typename Char> -FMT_CONSTEXPR const Char *pointer_from(null_terminating_iterator<Char> it) { - return it.ptr_; -} - -// An output iterator that counts the number of objects written to it and -// discards them. -template <typename T> -class counting_iterator { - private: - std::size_t count_; - mutable T blackhole_; - - public: - typedef std::output_iterator_tag iterator_category; - typedef T value_type; - typedef std::ptrdiff_t difference_type; - typedef T* pointer; - typedef T& reference; - typedef counting_iterator _Unchecked_type; // Mark iterator as checked. - - counting_iterator(): count_(0) {} - - std::size_t count() const { return count_; } - - counting_iterator& operator++() { - ++count_; - return *this; - } - - counting_iterator operator++(int) { - auto it = *this; - ++*this; - return it; - } - - T &operator*() const { return blackhole_; } -}; - -// An output iterator that truncates the output and counts the number of objects -// written to it. -template <typename OutputIt> -class truncating_iterator { - private: - typedef std::iterator_traits<OutputIt> traits; - - OutputIt out_; - std::size_t limit_; - std::size_t count_; - mutable typename traits::value_type blackhole_; - - public: - typedef std::output_iterator_tag iterator_category; - typedef typename traits::value_type value_type; - typedef typename traits::difference_type difference_type; - typedef typename traits::pointer pointer; - typedef typename traits::reference reference; - typedef truncating_iterator _Unchecked_type; // Mark iterator as checked. - - truncating_iterator(OutputIt out, std::size_t limit) - : out_(out), limit_(limit), count_(0) {} - - OutputIt base() const { return out_; } - std::size_t count() const { return count_; } - - truncating_iterator& operator++() { - if (count_++ < limit_) - ++out_; - return *this; - } - - truncating_iterator operator++(int) { - auto it = *this; - ++*this; - return it; - } - - reference operator*() const { return count_ < limit_ ? *out_ : blackhole_; } -}; - -// Returns true if value is negative, false otherwise. -// Same as (value < 0) but doesn't produce warnings if T is an unsigned type. -template <typename T> -FMT_CONSTEXPR typename std::enable_if< - std::numeric_limits<T>::is_signed, bool>::type is_negative(T value) { - return value < 0; -} -template <typename T> -FMT_CONSTEXPR typename std::enable_if< - !std::numeric_limits<T>::is_signed, bool>::type is_negative(T) { - return false; -} - -template <typename T> -struct int_traits { - // Smallest of uint32_t and uint64_t that is large enough to represent - // all values of T. - typedef typename std::conditional< - std::numeric_limits<T>::digits <= 32, uint32_t, uint64_t>::type main_type; -}; - -// Static data is placed in this class template to allow header-only -// configuration. -template <typename T = void> -struct FMT_API basic_data { - static const uint32_t POWERS_OF_10_32[]; - static const uint64_t POWERS_OF_10_64[]; - static const uint64_t POW10_SIGNIFICANDS[]; - static const int16_t POW10_EXPONENTS[]; - static const char DIGITS[]; - static const char RESET_COLOR[]; - static const wchar_t WRESET_COLOR[]; -}; - -#if FMT_USE_EXTERN_TEMPLATES -extern template struct basic_data<void>; -#endif - -typedef basic_data<> data; - -#ifdef FMT_BUILTIN_CLZLL -// Returns the number of decimal digits in n. Leading zeros are not counted -// except for n == 0 in which case count_digits returns 1. -inline unsigned count_digits(uint64_t n) { - // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 - // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits. - int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12; - return to_unsigned(t) - (n < data::POWERS_OF_10_64[t]) + 1; -} -#else -// Fallback version of count_digits used when __builtin_clz is not available. -inline unsigned count_digits(uint64_t n) { - unsigned count = 1; - for (;;) { - // Integer division is slow so do it for a group of four digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - if (n < 10) return count; - if (n < 100) return count + 1; - if (n < 1000) return count + 2; - if (n < 10000) return count + 3; - n /= 10000u; - count += 4; - } -} -#endif - -#if FMT_HAS_CPP_ATTRIBUTE(always_inline) -# define FMT_ALWAYS_INLINE __attribute__((always_inline)) -#else -# define FMT_ALWAYS_INLINE -#endif - -template <typename Handler> -inline char *lg(uint32_t n, Handler h) FMT_ALWAYS_INLINE; - -// Computes g = floor(log10(n)) and calls h.on<g>(n); -template <typename Handler> -inline char *lg(uint32_t n, Handler h) { - return n < 100 ? n < 10 ? h.template on<0>(n) : h.template on<1>(n) - : n < 1000000 - ? n < 10000 ? n < 1000 ? h.template on<2>(n) - : h.template on<3>(n) - : n < 100000 ? h.template on<4>(n) - : h.template on<5>(n) - : n < 100000000 ? n < 10000000 ? h.template on<6>(n) - : h.template on<7>(n) - : n < 1000000000 ? h.template on<8>(n) - : h.template on<9>(n); -} - -// An lg handler that formats a decimal number. -// Usage: lg(n, decimal_formatter(buffer)); -class decimal_formatter { - private: - char *buffer_; - - void write_pair(unsigned N, uint32_t index) { - std::memcpy(buffer_ + N, data::DIGITS + index * 2, 2); - } - - public: - explicit decimal_formatter(char *buf) : buffer_(buf) {} - - template <unsigned N> char *on(uint32_t u) { - if (N == 0) { - *buffer_ = static_cast<char>(u) + '0'; - } else if (N == 1) { - write_pair(0, u); - } else { - // The idea of using 4.32 fixed-point numbers is based on - // https://github.com/jeaiii/itoa - unsigned n = N - 1; - unsigned a = n / 5 * n * 53 / 16; - uint64_t t = ((1ULL << (32 + a)) / data::POWERS_OF_10_32[n] + 1 - n / 9); - t = ((t * u) >> a) + n / 5 * 4; - write_pair(0, t >> 32); - for (unsigned i = 2; i < N; i += 2) { - t = 100ULL * static_cast<uint32_t>(t); - write_pair(i, t >> 32); - } - if (N % 2 == 0) { - buffer_[N] = static_cast<char>( - (10ULL * static_cast<uint32_t>(t)) >> 32) + '0'; - } - } - return buffer_ += N + 1; - } -}; - -// An lg handler that formats a decimal number with a terminating null. -class decimal_formatter_null : public decimal_formatter { - public: - explicit decimal_formatter_null(char *buf) : decimal_formatter(buf) {} - - template <unsigned N> char *on(uint32_t u) { - char *buf = decimal_formatter::on<N>(u); - *buf = '\0'; - return buf; - } -}; - -#ifdef FMT_BUILTIN_CLZ -// Optional version of count_digits for better performance on 32-bit platforms. -inline unsigned count_digits(uint32_t n) { - int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12; - return to_unsigned(t) - (n < data::POWERS_OF_10_32[t]) + 1; -} -#endif - -// A functor that doesn't add a thousands separator. -struct no_thousands_sep { - typedef char char_type; - - template <typename Char> - void operator()(Char *) {} -}; - -// A functor that adds a thousands separator. -template <typename Char> -class add_thousands_sep { - private: - basic_string_view<Char> sep_; - - // Index of a decimal digit with the least significant digit having index 0. - unsigned digit_index_; - - public: - typedef Char char_type; - - explicit add_thousands_sep(basic_string_view<Char> sep) - : sep_(sep), digit_index_(0) {} - - void operator()(Char *&buffer) { - if (++digit_index_ % 3 != 0) - return; - buffer -= sep_.size(); - std::uninitialized_copy(sep_.data(), sep_.data() + sep_.size(), - internal::make_checked(buffer, sep_.size())); - } -}; - -template <typename Char> -FMT_API Char thousands_sep(locale_provider *lp); - -// Formats a decimal unsigned integer value writing into buffer. -// thousands_sep is a functor that is called after writing each char to -// add a thousands separator if necessary. -template <typename UInt, typename Char, typename ThousandsSep> -inline Char *format_decimal(Char *buffer, UInt value, unsigned num_digits, - ThousandsSep thousands_sep) { - buffer += num_digits; - Char *end = buffer; - while (value >= 100) { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast<unsigned>((value % 100) * 2); - value /= 100; - *--buffer = data::DIGITS[index + 1]; - thousands_sep(buffer); - *--buffer = data::DIGITS[index]; - thousands_sep(buffer); - } - if (value < 10) { - *--buffer = static_cast<char>('0' + value); - return end; - } - unsigned index = static_cast<unsigned>(value * 2); - *--buffer = data::DIGITS[index + 1]; - thousands_sep(buffer); - *--buffer = data::DIGITS[index]; - return end; -} - -template <typename UInt, typename Iterator, typename ThousandsSep> -inline Iterator format_decimal( - Iterator out, UInt value, unsigned num_digits, ThousandsSep sep) { - typedef typename ThousandsSep::char_type char_type; - // Buffer should be large enough to hold all digits (digits10 + 1) and null. - char_type buffer[std::numeric_limits<UInt>::digits10 + 2]; - format_decimal(buffer, value, num_digits, sep); - return std::copy_n(buffer, num_digits, out); -} - -template <typename It, typename UInt> -inline It format_decimal(It out, UInt value, unsigned num_digits) { - return format_decimal(out, value, num_digits, no_thousands_sep()); -} - -template <unsigned BASE_BITS, typename Char, typename UInt> -inline Char *format_uint(Char *buffer, UInt value, unsigned num_digits, - bool upper = false) { - buffer += num_digits; - Char *end = buffer; - do { - const char *digits = upper ? "0123456789ABCDEF" : "0123456789abcdef"; - unsigned digit = (value & ((1 << BASE_BITS) - 1)); - *--buffer = BASE_BITS < 4 ? static_cast<char>('0' + digit) : digits[digit]; - } while ((value >>= BASE_BITS) != 0); - return end; -} - -template <unsigned BASE_BITS, typename It, typename UInt> -inline It format_uint(It out, UInt value, unsigned num_digits, - bool upper = false) { - // Buffer should be large enough to hold all digits (digits / BASE_BITS + 1) - // and null. - char buffer[std::numeric_limits<UInt>::digits / BASE_BITS + 2]; - format_uint<BASE_BITS>(buffer, value, num_digits, upper); - return std::copy_n(buffer, num_digits, out); -} - -#ifndef _WIN32 -# define FMT_USE_WINDOWS_H 0 -#elif !defined(FMT_USE_WINDOWS_H) -# define FMT_USE_WINDOWS_H 1 -#endif - -// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h. -// All the functionality that relies on it will be disabled too. -#if FMT_USE_WINDOWS_H -// A converter from UTF-8 to UTF-16. -// It is only provided for Windows since other systems support UTF-8 natively. -class utf8_to_utf16 { - private: - wmemory_buffer buffer_; - - public: - FMT_API explicit utf8_to_utf16(string_view s); - operator wstring_view() const { return wstring_view(&buffer_[0], size()); } - size_t size() const { return buffer_.size() - 1; } - const wchar_t *c_str() const { return &buffer_[0]; } - std::wstring str() const { return std::wstring(&buffer_[0], size()); } -}; - -// A converter from UTF-16 to UTF-8. -// It is only provided for Windows since other systems support UTF-8 natively. -class utf16_to_utf8 { - private: - memory_buffer buffer_; - - public: - utf16_to_utf8() {} - FMT_API explicit utf16_to_utf8(wstring_view s); - operator string_view() const { return string_view(&buffer_[0], size()); } - size_t size() const { return buffer_.size() - 1; } - const char *c_str() const { return &buffer_[0]; } - std::string str() const { return std::string(&buffer_[0], size()); } - - // Performs conversion returning a system error code instead of - // throwing exception on conversion error. This method may still throw - // in case of memory allocation error. - FMT_API int convert(wstring_view s); -}; - -FMT_API void format_windows_error(fmt::internal::buffer &out, int error_code, - fmt::string_view message) FMT_NOEXCEPT; -#endif - -template <typename T = void> -struct null {}; -} // namespace internal - -struct monostate {}; - -/** - \rst - Visits an argument dispatching to the appropriate visit method based on - the argument type. For example, if the argument type is ``double`` then - ``vis(value)`` will be called with the value of type ``double``. - \endrst - */ -template <typename Visitor, typename Context> -FMT_CONSTEXPR typename internal::result_of<Visitor(int)>::type - visit(Visitor &&vis, basic_format_arg<Context> arg) { - typedef typename Context::char_type char_type; - switch (arg.type_) { - case internal::none_type: - break; - case internal::named_arg_type: - FMT_ASSERT(false, "invalid argument type"); - break; - case internal::int_type: - return vis(arg.value_.int_value); - case internal::uint_type: - return vis(arg.value_.uint_value); - case internal::long_long_type: - return vis(arg.value_.long_long_value); - case internal::ulong_long_type: - return vis(arg.value_.ulong_long_value); - case internal::bool_type: - return vis(arg.value_.int_value != 0); - case internal::char_type: - return vis(static_cast<char_type>(arg.value_.int_value)); - case internal::double_type: - return vis(arg.value_.double_value); - case internal::long_double_type: - return vis(arg.value_.long_double_value); - case internal::cstring_type: - return vis(arg.value_.string.value); - case internal::string_type: - return vis(basic_string_view<char_type>( - arg.value_.string.value, arg.value_.string.size)); - case internal::pointer_type: - return vis(arg.value_.pointer); - case internal::custom_type: - return vis(typename basic_format_arg<Context>::handle(arg.value_.custom)); - } - return vis(monostate()); -} - -enum alignment { - ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC -}; - -// Flags. -enum {SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8}; - -enum format_spec_tag {fill_tag, align_tag, width_tag, type_tag}; - -// Format specifier. -template <typename T, format_spec_tag> -class format_spec { - private: - T value_; - - public: - typedef T value_type; - - explicit format_spec(T value) : value_(value) {} - - T value() const { return value_; } -}; - -// template <typename Char> -// typedef format_spec<Char, fill_tag> fill_spec; -template <typename Char> -class fill_spec : public format_spec<Char, fill_tag> { - public: - explicit fill_spec(Char value) : format_spec<Char, fill_tag>(value) {} -}; - -typedef format_spec<unsigned, width_tag> width_spec; -typedef format_spec<char, type_tag> type_spec; - -// An empty format specifier. -struct empty_spec {}; - -// An alignment specifier. -struct align_spec : empty_spec { - unsigned width_; - // Fill is always wchar_t and cast to char if necessary to avoid having - // two specialization of AlignSpec and its subclasses. - wchar_t fill_; - alignment align_; - - FMT_CONSTEXPR align_spec( - unsigned width, wchar_t fill, alignment align = ALIGN_DEFAULT) - : width_(width), fill_(fill), align_(align) {} - - FMT_CONSTEXPR unsigned width() const { return width_; } - FMT_CONSTEXPR wchar_t fill() const { return fill_; } - FMT_CONSTEXPR alignment align() const { return align_; } - - int precision() const { return -1; } -}; - -// Format specifiers. -template <typename Char> -class basic_format_specs : public align_spec { - public: - unsigned flags_; - int precision_; - Char type_; - - FMT_CONSTEXPR basic_format_specs( - unsigned width = 0, char type = 0, wchar_t fill = ' ') - : align_spec(width, fill), flags_(0), precision_(-1), type_(type) {} - - FMT_CONSTEXPR bool flag(unsigned f) const { return (flags_ & f) != 0; } - FMT_CONSTEXPR int precision() const { return precision_; } - FMT_CONSTEXPR Char type() const { return type_; } -}; - -typedef basic_format_specs<char> format_specs; - -template <typename Char, typename ErrorHandler> -FMT_CONSTEXPR unsigned basic_parse_context<Char, ErrorHandler>::next_arg_id() { - if (next_arg_id_ >= 0) - return internal::to_unsigned(next_arg_id_++); - on_error("cannot switch from manual to automatic argument indexing"); - return 0; -} - -struct format_string {}; - -namespace internal { - -template <typename Char, typename Handler> -FMT_CONSTEXPR void handle_int_type_spec(Char spec, Handler &&handler) { - switch (spec) { - case 0: case 'd': - handler.on_dec(); - break; - case 'x': case 'X': - handler.on_hex(); - break; - case 'b': case 'B': - handler.on_bin(); - break; - case 'o': - handler.on_oct(); - break; - case 'n': - handler.on_num(); - break; - default: - handler.on_error(); - } -} - -template <typename Char, typename Handler> -FMT_CONSTEXPR void handle_float_type_spec(Char spec, Handler &&handler) { - switch (spec) { - case 0: case 'g': case 'G': - handler.on_general(); - break; - case 'e': case 'E': - handler.on_exp(); - break; - case 'f': case 'F': - handler.on_fixed(); - break; - case 'a': case 'A': - handler.on_hex(); - break; - default: - handler.on_error(); - break; - } -} - -template <typename Char, typename Handler> -FMT_CONSTEXPR void handle_char_specs( - const basic_format_specs<Char> &specs, Handler &&handler) { - if (specs.type() && specs.type() != 'c') { - handler.on_int(); - return; - } - if (specs.align() == ALIGN_NUMERIC || specs.flag(~0u) != 0) - handler.on_error("invalid format specifier for char"); - handler.on_char(); -} - -template <typename Char, typename Handler> -FMT_CONSTEXPR void handle_cstring_type_spec(Char spec, Handler &&handler) { - if (spec == 0 || spec == 's') - handler.on_string(); - else if (spec == 'p') - handler.on_pointer(); - else - handler.on_error("invalid type specifier"); -} - -template <typename Char, typename ErrorHandler> -FMT_CONSTEXPR void check_string_type_spec(Char spec, ErrorHandler &&eh) { - if (spec != 0 && spec != 's') - eh.on_error("invalid type specifier"); -} - -template <typename Char, typename ErrorHandler> -FMT_CONSTEXPR void check_pointer_type_spec(Char spec, ErrorHandler &&eh) { - if (spec != 0 && spec != 'p') - eh.on_error("invalid type specifier"); -} - -template <typename ErrorHandler> -class int_type_checker : private ErrorHandler { - public: - FMT_CONSTEXPR explicit int_type_checker(ErrorHandler eh) : ErrorHandler(eh) {} - - FMT_CONSTEXPR void on_dec() {} - FMT_CONSTEXPR void on_hex() {} - FMT_CONSTEXPR void on_bin() {} - FMT_CONSTEXPR void on_oct() {} - FMT_CONSTEXPR void on_num() {} - - FMT_CONSTEXPR void on_error() { - ErrorHandler::on_error("invalid type specifier"); - } -}; - -template <typename ErrorHandler> -class float_type_checker : private ErrorHandler { - public: - FMT_CONSTEXPR explicit float_type_checker(ErrorHandler eh) - : ErrorHandler(eh) {} - - FMT_CONSTEXPR void on_general() {} - FMT_CONSTEXPR void on_exp() {} - FMT_CONSTEXPR void on_fixed() {} - FMT_CONSTEXPR void on_hex() {} - - FMT_CONSTEXPR void on_error() { - ErrorHandler::on_error("invalid type specifier"); - } -}; - -template <typename ErrorHandler, typename CharType> -class char_specs_checker : public ErrorHandler { - private: - CharType type_; - - public: - FMT_CONSTEXPR char_specs_checker(CharType type, ErrorHandler eh) - : ErrorHandler(eh), type_(type) {} - - FMT_CONSTEXPR void on_int() { - handle_int_type_spec(type_, int_type_checker<ErrorHandler>(*this)); - } - FMT_CONSTEXPR void on_char() {} -}; - -template <typename ErrorHandler> -class cstring_type_checker : public ErrorHandler { - public: - FMT_CONSTEXPR explicit cstring_type_checker(ErrorHandler eh) - : ErrorHandler(eh) {} - - FMT_CONSTEXPR void on_string() {} - FMT_CONSTEXPR void on_pointer() {} -}; - -template <typename Context> -void arg_map<Context>::init(const basic_format_args<Context> &args) { - if (map_) - return; - map_ = new entry[args.max_size()]; - bool use_values = args.type(max_packed_args - 1) == internal::none_type; - if (use_values) { - for (unsigned i = 0;/*nothing*/; ++i) { - internal::type arg_type = args.type(i); - switch (arg_type) { - case internal::none_type: - return; - case internal::named_arg_type: - push_back(args.values_[i]); - break; - default: - break; // Do nothing. - } - } - return; - } - for (unsigned i = 0; ; ++i) { - switch (args.args_[i].type_) { - case internal::none_type: - return; - case internal::named_arg_type: - push_back(args.args_[i].value_); - break; - default: - break; // Do nothing. - } - } -} - -template <typename Range> -class arg_formatter_base { - public: - typedef typename Range::value_type char_type; - typedef decltype(internal::declval<Range>().begin()) iterator; - typedef basic_format_specs<char_type> format_specs; - - private: - typedef basic_writer<Range> writer_type; - writer_type writer_; - format_specs &specs_; - - FMT_DISALLOW_COPY_AND_ASSIGN(arg_formatter_base); - - struct char_writer { - char_type value; - template <typename It> - void operator()(It &&it) const { *it++ = value; } - }; - - void write_char(char_type value) { - writer_.write_padded(1, specs_, char_writer{value}); - } - - void write_pointer(const void *p) { - format_specs specs = specs_; - specs.flags_ = HASH_FLAG; - specs.type_ = 'x'; - writer_.write_int(reinterpret_cast<uintptr_t>(p), specs); - } - - protected: - writer_type &writer() { return writer_; } - format_specs &spec() { return specs_; } - iterator out() { return writer_.out(); } - - void write(bool value) { - writer_.write_str(string_view(value ? "true" : "false"), specs_); - } - - void write(const char_type *value) { - if (!value) - FMT_THROW(format_error("string pointer is null")); - auto length = std::char_traits<char_type>::length(value); - writer_.write_str(basic_string_view<char_type>(value, length), specs_); - } - - public: - arg_formatter_base(Range r, format_specs &s): writer_(r), specs_(s) {} - - iterator operator()(monostate) { - FMT_ASSERT(false, "invalid argument type"); - return out(); - } - - template <typename T> - typename std::enable_if<std::is_integral<T>::value, iterator>::type - operator()(T value) { - // MSVC2013 fails to compile separate overloads for bool and char_type so - // use std::is_same instead. - if (std::is_same<T, bool>::value) { - if (specs_.type_) - return (*this)(value ? 1 : 0); - write(value != 0); - } else if (std::is_same<T, char_type>::value) { - internal::handle_char_specs( - specs_, char_spec_handler(*this, static_cast<char_type>(value))); - } else { - writer_.write_int(value, specs_); - } - return out(); - } - - template <typename T> - typename std::enable_if<std::is_floating_point<T>::value, iterator>::type - operator()(T value) { - writer_.write_double(value, specs_); - return out(); - } - - struct char_spec_handler : internal::error_handler { - arg_formatter_base &formatter; - char_type value; - - char_spec_handler(arg_formatter_base& f, char_type val) - : formatter(f), value(val) {} - - void on_int() { formatter.writer_.write_int(value, formatter.specs_); } - void on_char() { formatter.write_char(value); } - }; - - struct cstring_spec_handler : internal::error_handler { - arg_formatter_base &formatter; - const char_type *value; - - cstring_spec_handler(arg_formatter_base &f, const char_type *val) - : formatter(f), value(val) {} - - void on_string() { formatter.write(value); } - void on_pointer() { formatter.write_pointer(value); } - }; - - iterator operator()(const char_type *value) { - internal::handle_cstring_type_spec( - specs_.type_, cstring_spec_handler(*this, value)); - return out(); - } - - iterator operator()(basic_string_view<char_type> value) { - internal::check_string_type_spec(specs_.type_, internal::error_handler()); - writer_.write_str(value, specs_); - return out(); - } - - iterator operator()(const void *value) { - check_pointer_type_spec(specs_.type_, internal::error_handler()); - write_pointer(value); - return out(); - } -}; - -template <typename S> -struct is_format_string: - std::integral_constant<bool, std::is_base_of<format_string, S>::value> {}; - -template <typename Char> -FMT_CONSTEXPR bool is_name_start(Char c) { - return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; -} - -// Parses the input as an unsigned integer. This function assumes that the -// first character is a digit and presence of a non-digit character at the end. -// it: an iterator pointing to the beginning of the input range. -template <typename Iterator, typename ErrorHandler> -FMT_CONSTEXPR unsigned parse_nonnegative_int(Iterator &it, ErrorHandler &&eh) { - assert('0' <= *it && *it <= '9'); - unsigned value = 0; - // Convert to unsigned to prevent a warning. - unsigned max_int = (std::numeric_limits<int>::max)(); - unsigned big = max_int / 10; - do { - // Check for overflow. - if (value > big) { - value = max_int + 1; - break; - } - value = value * 10 + unsigned(*it - '0'); - // Workaround for MSVC "setup_exception stack overflow" error: - auto next = it; - ++next; - it = next; - } while ('0' <= *it && *it <= '9'); - if (value > max_int) - eh.on_error("number is too big"); - return value; -} - -template <typename Char, typename Context> -class custom_formatter: public function<bool> { - private: - Context &ctx_; - - public: - explicit custom_formatter(Context &ctx): ctx_(ctx) {} - - bool operator()(typename basic_format_arg<Context>::handle h) const { - h.format(ctx_); - return true; - } - - template <typename T> - bool operator()(T) const { return false; } -}; - -template <typename T> -struct is_integer { - enum { - value = std::is_integral<T>::value && !std::is_same<T, bool>::value && - !std::is_same<T, char>::value && !std::is_same<T, wchar_t>::value - }; -}; - -template <typename ErrorHandler> -class width_checker: public function<unsigned long long> { - public: - explicit FMT_CONSTEXPR width_checker(ErrorHandler &eh) : handler_(eh) {} - - template <typename T> - FMT_CONSTEXPR - typename std::enable_if< - is_integer<T>::value, unsigned long long>::type operator()(T value) { - if (is_negative(value)) - handler_.on_error("negative width"); - return static_cast<unsigned long long>(value); - } - - template <typename T> - FMT_CONSTEXPR typename std::enable_if< - !is_integer<T>::value, unsigned long long>::type operator()(T) { - handler_.on_error("width is not integer"); - return 0; - } - - private: - ErrorHandler &handler_; -}; - -template <typename ErrorHandler> -class precision_checker: public function<unsigned long long> { - public: - explicit FMT_CONSTEXPR precision_checker(ErrorHandler &eh) : handler_(eh) {} - - template <typename T> - FMT_CONSTEXPR typename std::enable_if< - is_integer<T>::value, unsigned long long>::type operator()(T value) { - if (is_negative(value)) - handler_.on_error("negative precision"); - return static_cast<unsigned long long>(value); - } - - template <typename T> - FMT_CONSTEXPR typename std::enable_if< - !is_integer<T>::value, unsigned long long>::type operator()(T) { - handler_.on_error("precision is not integer"); - return 0; - } - - private: - ErrorHandler &handler_; -}; - -// A format specifier handler that sets fields in basic_format_specs. -template <typename Char> -class specs_setter { - public: - explicit FMT_CONSTEXPR specs_setter(basic_format_specs<Char> &specs): - specs_(specs) {} - - FMT_CONSTEXPR specs_setter(const specs_setter &other) : specs_(other.specs_) {} - - FMT_CONSTEXPR void on_align(alignment align) { specs_.align_ = align; } - FMT_CONSTEXPR void on_fill(Char fill) { specs_.fill_ = fill; } - FMT_CONSTEXPR void on_plus() { specs_.flags_ |= SIGN_FLAG | PLUS_FLAG; } - FMT_CONSTEXPR void on_minus() { specs_.flags_ |= MINUS_FLAG; } - FMT_CONSTEXPR void on_space() { specs_.flags_ |= SIGN_FLAG; } - FMT_CONSTEXPR void on_hash() { specs_.flags_ |= HASH_FLAG; } - - FMT_CONSTEXPR void on_zero() { - specs_.align_ = ALIGN_NUMERIC; - specs_.fill_ = '0'; - } - - FMT_CONSTEXPR void on_width(unsigned width) { specs_.width_ = width; } - FMT_CONSTEXPR void on_precision(unsigned precision) { - specs_.precision_ = static_cast<int>(precision); - } - FMT_CONSTEXPR void end_precision() {} - - FMT_CONSTEXPR void on_type(Char type) { specs_.type_ = type; } - - protected: - basic_format_specs<Char> &specs_; -}; - -// A format specifier handler that checks if specifiers are consistent with the -// argument type. -template <typename Handler> -class specs_checker : public Handler { - public: - FMT_CONSTEXPR specs_checker(const Handler& handler, internal::type arg_type) - : Handler(handler), arg_type_(arg_type) {} - - FMT_CONSTEXPR specs_checker(const specs_checker &other) - : Handler(other), arg_type_(other.arg_type_) {} - - FMT_CONSTEXPR void on_align(alignment align) { - if (align == ALIGN_NUMERIC) - require_numeric_argument(); - Handler::on_align(align); - } - - FMT_CONSTEXPR void on_plus() { - check_sign(); - Handler::on_plus(); - } - - FMT_CONSTEXPR void on_minus() { - check_sign(); - Handler::on_minus(); - } - - FMT_CONSTEXPR void on_space() { - check_sign(); - Handler::on_space(); - } - - FMT_CONSTEXPR void on_hash() { - require_numeric_argument(); - Handler::on_hash(); - } - - FMT_CONSTEXPR void on_zero() { - require_numeric_argument(); - Handler::on_zero(); - } - - FMT_CONSTEXPR void end_precision() { - if (is_integral(arg_type_) || arg_type_ == pointer_type) - this->on_error("precision not allowed for this argument type"); - } - - private: - FMT_CONSTEXPR void require_numeric_argument() { - if (!is_arithmetic(arg_type_)) - this->on_error("format specifier requires numeric argument"); - } - - FMT_CONSTEXPR void check_sign() { - require_numeric_argument(); - if (is_integral(arg_type_) && arg_type_ != int_type && - arg_type_ != long_long_type && arg_type_ != internal::char_type) { - this->on_error("format specifier requires signed argument"); - } - } - - internal::type arg_type_; -}; - -template <template <typename> class Handler, typename T, - typename Context, typename ErrorHandler> -FMT_CONSTEXPR void set_dynamic_spec( - T &value, basic_format_arg<Context> arg, ErrorHandler eh) { - unsigned long long big_value = visit(Handler<ErrorHandler>(eh), arg); - if (big_value > (std::numeric_limits<int>::max)()) - eh.on_error("number is too big"); - value = static_cast<T>(big_value); -} - -struct auto_id {}; - -// The standard format specifier handler with checking. -template <typename Context> -class specs_handler: public specs_setter<typename Context::char_type> { - public: - typedef typename Context::char_type char_type; - - FMT_CONSTEXPR specs_handler(basic_format_specs<char_type> &specs, Context &ctx) - : specs_setter<char_type>(specs), context_(ctx) {} - - template <typename Id> - FMT_CONSTEXPR void on_dynamic_width(Id arg_id) { - set_dynamic_spec<width_checker>( - this->specs_.width_, get_arg(arg_id), context_.error_handler()); - } - - template <typename Id> - FMT_CONSTEXPR void on_dynamic_precision(Id arg_id) { - set_dynamic_spec<precision_checker>( - this->specs_.precision_, get_arg(arg_id), context_.error_handler()); - } - - void on_error(const char *message) { - context_.on_error(message); - } - - private: - FMT_CONSTEXPR basic_format_arg<Context> get_arg(auto_id) { - return context_.next_arg(); - } - - template <typename Id> - FMT_CONSTEXPR basic_format_arg<Context> get_arg(Id arg_id) { - context_.parse_context().check_arg_id(arg_id); - return context_.get_arg(arg_id); - } - - Context &context_; -}; - -// An argument reference. -template <typename Char> -struct arg_ref { - enum Kind { NONE, INDEX, NAME }; - - FMT_CONSTEXPR arg_ref() : kind(NONE), index(0) {} - FMT_CONSTEXPR explicit arg_ref(unsigned index) : kind(INDEX), index(index) {} - explicit arg_ref(basic_string_view<Char> name) : kind(NAME), name(name) {} - - FMT_CONSTEXPR arg_ref &operator=(unsigned idx) { - kind = INDEX; - index = idx; - return *this; - } - - Kind kind; - FMT_UNION { - unsigned index; - basic_string_view<Char> name; - }; -}; - -// Format specifiers with width and precision resolved at formatting rather -// than parsing time to allow re-using the same parsed specifiers with -// differents sets of arguments (precompilation of format strings). -template <typename Char> -struct dynamic_format_specs : basic_format_specs<Char> { - arg_ref<Char> width_ref; - arg_ref<Char> precision_ref; -}; - -// Format spec handler that saves references to arguments representing dynamic -// width and precision to be resolved at formatting time. -template <typename ParseContext> -class dynamic_specs_handler : - public specs_setter<typename ParseContext::char_type> { - public: - typedef typename ParseContext::char_type char_type; - - FMT_CONSTEXPR dynamic_specs_handler( - dynamic_format_specs<char_type> &specs, ParseContext &ctx) - : specs_setter<char_type>(specs), specs_(specs), context_(ctx) {} - - FMT_CONSTEXPR dynamic_specs_handler(const dynamic_specs_handler &other) - : specs_setter<char_type>(other), - specs_(other.specs_), context_(other.context_) {} - - template <typename Id> - FMT_CONSTEXPR void on_dynamic_width(Id arg_id) { - specs_.width_ref = make_arg_ref(arg_id); - } - - template <typename Id> - FMT_CONSTEXPR void on_dynamic_precision(Id arg_id) { - specs_.precision_ref = make_arg_ref(arg_id); - } - - FMT_CONSTEXPR void on_error(const char *message) { - context_.on_error(message); - } - - private: - typedef arg_ref<char_type> arg_ref_type; - - template <typename Id> - FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) { - context_.check_arg_id(arg_id); - return arg_ref_type(arg_id); - } - - FMT_CONSTEXPR arg_ref_type make_arg_ref(auto_id) { - return arg_ref_type(context_.next_arg_id()); - } - - dynamic_format_specs<char_type> &specs_; - ParseContext &context_; -}; - -template <typename Iterator, typename IDHandler> -FMT_CONSTEXPR Iterator parse_arg_id(Iterator it, IDHandler &&handler) { - typedef typename std::iterator_traits<Iterator>::value_type char_type; - char_type c = *it; - if (c == '}' || c == ':') { - handler(); - return it; - } - if (c >= '0' && c <= '9') { - unsigned index = parse_nonnegative_int(it, handler); - if (*it != '}' && *it != ':') { - handler.on_error("invalid format string"); - return it; - } - handler(index); - return it; - } - if (!is_name_start(c)) { - handler.on_error("invalid format string"); - return it; - } - auto start = it; - do { - c = *++it; - } while (is_name_start(c) || ('0' <= c && c <= '9')); - handler(basic_string_view<char_type>(pointer_from(start), to_unsigned(it - start))); - return it; -} - -// Adapts SpecHandler to IDHandler API for dynamic width. -template <typename SpecHandler, typename Char> -struct width_adapter { - explicit FMT_CONSTEXPR width_adapter(SpecHandler &h) : handler(h) {} - - FMT_CONSTEXPR void operator()() { handler.on_dynamic_width(auto_id()); } - FMT_CONSTEXPR void operator()(unsigned id) { handler.on_dynamic_width(id); } - FMT_CONSTEXPR void operator()(basic_string_view<Char> id) { - handler.on_dynamic_width(id); - } - - FMT_CONSTEXPR void on_error(const char *message) { - handler.on_error(message); - } - - SpecHandler &handler; -}; - -// Adapts SpecHandler to IDHandler API for dynamic precision. -template <typename SpecHandler, typename Char> -struct precision_adapter { - explicit FMT_CONSTEXPR precision_adapter(SpecHandler &h) : handler(h) {} - - FMT_CONSTEXPR void operator()() { handler.on_dynamic_precision(auto_id()); } - FMT_CONSTEXPR void operator()(unsigned id) { - handler.on_dynamic_precision(id); - } - FMT_CONSTEXPR void operator()(basic_string_view<Char> id) { - handler.on_dynamic_precision(id); - } - - FMT_CONSTEXPR void on_error(const char *message) { handler.on_error(message); } - - SpecHandler &handler; -}; - -// Parses standard format specifiers and sends notifications about parsed -// components to handler. -// it: an iterator pointing to the beginning of a null-terminated range of -// characters, possibly emulated via null_terminating_iterator, representing -// format specifiers. -template <typename Iterator, typename SpecHandler> -FMT_CONSTEXPR Iterator parse_format_specs(Iterator it, SpecHandler &&handler) { - typedef typename std::iterator_traits<Iterator>::value_type char_type; - char_type c = *it; - if (c == '}' || !c) - return it; - - // Parse fill and alignment. - alignment align = ALIGN_DEFAULT; - int i = 1; - do { - auto p = it + i; - switch (*p) { - case '<': - align = ALIGN_LEFT; - break; - case '>': - align = ALIGN_RIGHT; - break; - case '=': - align = ALIGN_NUMERIC; - break; - case '^': - align = ALIGN_CENTER; - break; - } - if (align != ALIGN_DEFAULT) { - if (p != it) { - if (c == '{') { - handler.on_error("invalid fill character '{'"); - return it; - } - it += 2; - handler.on_fill(c); - } else ++it; - handler.on_align(align); - break; - } - } while (--i >= 0); - - // Parse sign. - switch (*it) { - case '+': - handler.on_plus(); - ++it; - break; - case '-': - handler.on_minus(); - ++it; - break; - case ' ': - handler.on_space(); - ++it; - break; - } - - if (*it == '#') { - handler.on_hash(); - ++it; - } - - // Parse zero flag. - if (*it == '0') { - handler.on_zero(); - ++it; - } - - // Parse width. - if ('0' <= *it && *it <= '9') { - handler.on_width(parse_nonnegative_int(it, handler)); - } else if (*it == '{') { - it = parse_arg_id(it + 1, width_adapter<SpecHandler, char_type>(handler)); - if (*it++ != '}') { - handler.on_error("invalid format string"); - return it; - } - } - - // Parse precision. - if (*it == '.') { - ++it; - if ('0' <= *it && *it <= '9') { - handler.on_precision(parse_nonnegative_int(it, handler)); - } else if (*it == '{') { - it = parse_arg_id( - it + 1, precision_adapter<SpecHandler, char_type>(handler)); - if (*it++ != '}') { - handler.on_error("invalid format string"); - return it; - } - } else { - handler.on_error("missing precision specifier"); - return it; - } - handler.end_precision(); - } - - // Parse type. - if (*it != '}' && *it) - handler.on_type(*it++); - return it; -} - -template <typename Handler, typename Char> -struct id_adapter { - FMT_CONSTEXPR explicit id_adapter(Handler &h): handler(h) {} - - FMT_CONSTEXPR void operator()() { handler.on_arg_id(); } - FMT_CONSTEXPR void operator()(unsigned id) { handler.on_arg_id(id); } - FMT_CONSTEXPR void operator()(basic_string_view<Char> id) { - handler.on_arg_id(id); - } - - FMT_CONSTEXPR void on_error(const char *message) { - handler.on_error(message); - } - - Handler &handler; -}; - -template <typename Iterator, typename Handler> -FMT_CONSTEXPR void parse_format_string(Iterator it, Handler &&handler) { - typedef typename std::iterator_traits<Iterator>::value_type char_type; - auto start = it; - while (*it) { - char_type ch = *it++; - if (ch != '{' && ch != '}') continue; - if (*it == ch) { - handler.on_text(start, it); - start = ++it; - continue; - } - if (ch == '}') { - handler.on_error("unmatched '}' in format string"); - return; - } - handler.on_text(start, it - 1); - - it = parse_arg_id(it, id_adapter<Handler, char_type>(handler)); - if (*it == '}') { - handler.on_replacement_field(it); - } else if (*it == ':') { - ++it; - it = handler.on_format_specs(it); - if (*it != '}') { - handler.on_error("unknown format specifier"); - return; - } - } else { - handler.on_error("missing '}' in format string"); - return; - } - - start = ++it; - } - handler.on_text(start, it); -} - -template <typename T, typename ParseContext> -FMT_CONSTEXPR const typename ParseContext::char_type * - parse_format_specs(ParseContext &ctx) { - // GCC 7.2 requires initializer. - formatter<T, typename ParseContext::char_type> f{}; - return f.parse(ctx); -} - -template <typename Char, typename ErrorHandler, typename... Args> -class format_string_checker { - public: - explicit FMT_CONSTEXPR format_string_checker( - basic_string_view<Char> format_str, ErrorHandler eh) - : arg_id_(-1), context_(format_str, eh), - parse_funcs_{&parse_format_specs<Args, parse_context_type>...} {} - - FMT_CONSTEXPR void on_text(const Char *, const Char *) {} - - FMT_CONSTEXPR void on_arg_id() { - arg_id_ = context_.next_arg_id(); - check_arg_id(); - } - FMT_CONSTEXPR void on_arg_id(unsigned id) { - arg_id_ = id; - context_.check_arg_id(id); - check_arg_id(); - } - FMT_CONSTEXPR void on_arg_id(basic_string_view<Char>) {} - - FMT_CONSTEXPR void on_replacement_field(const Char *) {} - - FMT_CONSTEXPR const Char *on_format_specs(const Char *s) { - context_.advance_to(s); - return to_unsigned(arg_id_) < NUM_ARGS ? - parse_funcs_[arg_id_](context_) : s; - } - - FMT_CONSTEXPR void on_error(const char *message) { - context_.on_error(message); - } - - private: - typedef basic_parse_context<Char, ErrorHandler> parse_context_type; - enum { NUM_ARGS = sizeof...(Args) }; - - FMT_CONSTEXPR void check_arg_id() { - if (internal::to_unsigned(arg_id_) >= NUM_ARGS) - context_.on_error("argument index out of range"); - } - - // Format specifier parsing function. - typedef const Char *(*parse_func)(parse_context_type &); - - int arg_id_; - parse_context_type context_; - parse_func parse_funcs_[NUM_ARGS > 0 ? NUM_ARGS : 1]; -}; - -template <typename Char, typename ErrorHandler, typename... Args> -FMT_CONSTEXPR bool check_format_string( - basic_string_view<Char> s, ErrorHandler eh = ErrorHandler()) { - format_string_checker<Char, ErrorHandler, Args...> checker(s, eh); - parse_format_string(s.begin(), checker); - return true; -} - -template <typename... Args, typename String> -void check_format_string(String format_str) { - FMT_CONSTEXPR_DECL bool invalid_format = - internal::check_format_string<char, internal::error_handler, Args...>( - string_view(format_str.data(), format_str.size())); - (void)invalid_format; -} - -// Specifies whether to format T using the standard formatter. -// It is not possible to use get_type in formatter specialization directly -// because of a bug in MSVC. -template <typename Context, typename T> -struct format_type : - std::integral_constant<bool, get_type<Context, T>::value != custom_type> {}; - -// Specifies whether to format enums. -template <typename T, typename Enable = void> -struct format_enum : std::integral_constant<bool, std::is_enum<T>::value> {}; - -template <template <typename> class Handler, typename Spec, typename Context> -void handle_dynamic_spec( - Spec &value, arg_ref<typename Context::char_type> ref, Context &ctx) { - typedef typename Context::char_type char_type; - switch (ref.kind) { - case arg_ref<char_type>::NONE: - break; - case arg_ref<char_type>::INDEX: - internal::set_dynamic_spec<Handler>( - value, ctx.get_arg(ref.index), ctx.error_handler()); - break; - case arg_ref<char_type>::NAME: - internal::set_dynamic_spec<Handler>( - value, ctx.get_arg(ref.name), ctx.error_handler()); - break; - } -} -} // namespace internal - -/** The default argument formatter. */ -template <typename Range> -class arg_formatter: - public internal::function< - typename internal::arg_formatter_base<Range>::iterator>, - public internal::arg_formatter_base<Range> { - private: - typedef typename Range::value_type char_type; - typedef internal::arg_formatter_base<Range> base; - typedef basic_format_context<typename base::iterator, char_type> context_type; - - context_type &ctx_; - - public: - typedef Range range; - typedef typename base::iterator iterator; - typedef typename base::format_specs format_specs; - - /** - \rst - Constructs an argument formatter object. - *ctx* is a reference to the formatting context, - *spec* contains format specifier information for standard argument types. - \endrst - */ - arg_formatter(context_type &ctx, format_specs &spec) - : base(Range(ctx.out()), spec), ctx_(ctx) {} - - using base::operator(); - - /** Formats an argument of a user-defined type. */ - iterator operator()(typename basic_format_arg<context_type>::handle handle) { - handle.format(ctx_); - return this->out(); - } -}; - -/** - An error returned by an operating system or a language runtime, - for example a file opening error. -*/ -class system_error : public std::runtime_error { - private: - FMT_API void init(int err_code, string_view format_str, format_args args); - - protected: - int error_code_; - - system_error() : std::runtime_error("") {} - - public: - /** - \rst - Constructs a :class:`fmt::system_error` object with a description - formatted with `fmt::format_system_error`. *message* and additional - arguments passed into the constructor are formatted similarly to - `fmt::format`. - - **Example**:: - - // This throws a system_error with the description - // cannot open file 'madeup': No such file or directory - // or similar (system message may vary). - const char *filename = "madeup"; - std::FILE *file = std::fopen(filename, "r"); - if (!file) - throw fmt::system_error(errno, "cannot open file '{}'", filename); - \endrst - */ - template <typename... Args> - system_error(int error_code, string_view message, const Args & ... args) - : std::runtime_error("") { - init(error_code, message, make_format_args(args...)); - } - - int error_code() const { return error_code_; } -}; - -/** - \rst - Formats an error returned by an operating system or a language runtime, - for example a file opening error, and writes it to *out* in the following - form: - - .. parsed-literal:: - *<message>*: *<system-message>* - - where *<message>* is the passed message and *<system-message>* is - the system message corresponding to the error code. - *error_code* is a system error code as given by ``errno``. - If *error_code* is not a valid error code such as -1, the system message - may look like "Unknown error -1" and is platform-dependent. - \endrst - */ -FMT_API void format_system_error(internal::buffer &out, int error_code, - fmt::string_view message) FMT_NOEXCEPT; - -/** - This template provides operations for formatting and writing data into a - character range. - */ -template <typename Range> -class basic_writer { - public: - typedef typename Range::value_type char_type; - typedef decltype(internal::declval<Range>().begin()) iterator; - typedef basic_format_specs<char_type> format_specs; - - private: - // Output iterator. - iterator out_; - - std::unique_ptr<locale_provider> locale_; - - FMT_DISALLOW_COPY_AND_ASSIGN(basic_writer); - - iterator out() const { return out_; } - - // Attempts to reserve space for n extra characters in the output range. - // Returns a pointer to the reserved range or a reference to out_. - auto reserve(std::size_t n) -> decltype(internal::reserve(out_, n)) { - return internal::reserve(out_, n); - } - - // Writes a value in the format - // <left-padding><value><right-padding> - // where <value> is written by f(it). - template <typename F> - void write_padded(std::size_t size, const align_spec &spec, F f); - - template <typename F> - struct padded_int_writer { - string_view prefix; - char_type fill; - std::size_t padding; - F f; - - template <typename It> - void operator()(It &&it) const { - if (prefix.size() != 0) - it = std::copy_n(prefix.data(), prefix.size(), it); - it = std::fill_n(it, padding, fill); - f(it); - } - }; - - // Writes an integer in the format - // <left-padding><prefix><numeric-padding><digits><right-padding> - // where <digits> are written by f(it). - template <typename Spec, typename F> - void write_int(unsigned num_digits, string_view prefix, - const Spec &spec, F f) { - std::size_t size = prefix.size() + num_digits; - char_type fill = static_cast<char_type>(spec.fill()); - std::size_t padding = 0; - if (spec.align() == ALIGN_NUMERIC) { - if (spec.width() > size) { - padding = spec.width() - size; - size = spec.width(); - } - } else if (spec.precision() > static_cast<int>(num_digits)) { - size = prefix.size() + static_cast<std::size_t>(spec.precision()); - padding = static_cast<std::size_t>(spec.precision()) - num_digits; - fill = '0'; - } - align_spec as = spec; - if (spec.align() == ALIGN_DEFAULT) - as.align_ = ALIGN_RIGHT; - write_padded(size, as, padded_int_writer<F>{prefix, fill, padding, f}); - } - - // Writes a decimal integer. - template <typename Int> - void write_decimal(Int value) { - typedef typename internal::int_traits<Int>::main_type main_type; - main_type abs_value = static_cast<main_type>(value); - bool is_negative = internal::is_negative(value); - if (is_negative) - abs_value = 0 - abs_value; - unsigned num_digits = internal::count_digits(abs_value); - auto &&it = reserve((is_negative ? 1 : 0) + num_digits); - if (is_negative) - *it++ = '-'; - internal::format_decimal(it, abs_value, num_digits); - } - - // The handle_int_type_spec handler that writes an integer. - template <typename Int, typename Spec> - struct int_writer { - typedef typename internal::int_traits<Int>::main_type unsigned_type; - - basic_writer<Range> &writer; - const Spec &spec; - unsigned_type abs_value; - char prefix[4]; - unsigned prefix_size; - - string_view get_prefix() const { return string_view(prefix, prefix_size); } - - // Counts the number of digits in abs_value. BITS = log2(radix). - template <unsigned BITS> - unsigned count_digits() const { - unsigned_type n = abs_value; - unsigned num_digits = 0; - do { - ++num_digits; - } while ((n >>= BITS) != 0); - return num_digits; - } - - int_writer(basic_writer<Range> &w, Int value, const Spec &s) - : writer(w), spec(s), abs_value(static_cast<unsigned_type>(value)), - prefix_size(0) { - if (internal::is_negative(value)) { - prefix[0] = '-'; - ++prefix_size; - abs_value = 0 - abs_value; - } else if (spec.flag(SIGN_FLAG)) { - prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' '; - ++prefix_size; - } - } - - struct dec_writer { - unsigned_type abs_value; - unsigned num_digits; - - template <typename It> - void operator()(It &&it) const { - it = internal::format_decimal(it, abs_value, num_digits); - } - }; - - void on_dec() { - unsigned num_digits = internal::count_digits(abs_value); - writer.write_int(num_digits, get_prefix(), spec, - dec_writer{abs_value, num_digits}); - } - - struct hex_writer { - int_writer &self; - unsigned num_digits; - - template <typename It> - void operator()(It &&it) const { - it = internal::format_uint<4>(it, self.abs_value, num_digits, - self.spec.type() != 'x'); - } - }; - - void on_hex() { - if (spec.flag(HASH_FLAG)) { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = static_cast<char>(spec.type()); - } - unsigned num_digits = count_digits<4>(); - writer.write_int(num_digits, get_prefix(), spec, - hex_writer{*this, num_digits}); - } - - template <int BITS> - struct bin_writer { - unsigned_type abs_value; - unsigned num_digits; - - template <typename It> - void operator()(It &&it) const { - it = internal::format_uint<BITS>(it, abs_value, num_digits); - } - }; - - void on_bin() { - if (spec.flag(HASH_FLAG)) { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = static_cast<char>(spec.type()); - } - unsigned num_digits = count_digits<1>(); - writer.write_int(num_digits, get_prefix(), spec, - bin_writer<1>{abs_value, num_digits}); - } - - void on_oct() { - unsigned num_digits = count_digits<3>(); - if (spec.flag(HASH_FLAG) && - spec.precision() <= static_cast<int>(num_digits)) { - // Octal prefix '0' is counted as a digit, so only add it if precision - // is not greater than the number of digits. - prefix[prefix_size++] = '0'; - } - writer.write_int(num_digits, get_prefix(), spec, - bin_writer<3>{abs_value, num_digits}); - } - - enum { SEP_SIZE = 1 }; - - struct num_writer { - unsigned_type abs_value; - unsigned size; - char_type sep; - - template <typename It> - void operator()(It &&it) const { - basic_string_view<char_type> s(&sep, SEP_SIZE); - it = format_decimal(it, abs_value, size, - internal::add_thousands_sep<char_type>(s)); - } - }; - - void on_num() { - unsigned num_digits = internal::count_digits(abs_value); - char_type sep = internal::thousands_sep<char_type>(writer.locale_.get()); - unsigned size = num_digits + SEP_SIZE * ((num_digits - 1) / 3); - writer.write_int(size, get_prefix(), spec, - num_writer{abs_value, size, sep}); - } - - void on_error() { - FMT_THROW(format_error("invalid type specifier")); - } - }; - - // Writes a formatted integer. - template <typename T, typename Spec> - void write_int(T value, const Spec &spec) { - internal::handle_int_type_spec(spec.type(), - int_writer<T, Spec>(*this, value, spec)); - } - - enum {INF_SIZE = 3}; // This is an enum to workaround a bug in MSVC. - - struct inf_or_nan_writer { - char sign; - const char *str; - - template <typename It> - void operator()(It &&it) const { - if (sign) - *it++ = sign; - it = std::copy_n(str, static_cast<std::size_t>(INF_SIZE), it); - } - }; - - struct double_writer { - size_t n; - char sign; - basic_memory_buffer<char_type> &buffer; - - template <typename It> - void operator()(It &&it) { - if (sign) { - *it++ = sign; - --n; - } - it = std::copy_n(buffer.begin(), n, it); - } - }; - - // Formats a floating-point number (double or long double). - template <typename T> - void write_double(T value, const format_specs &spec); - template <typename T> - void write_double_sprintf(T value, const format_specs &spec, - internal::basic_buffer<char_type>& buffer); - - template <typename Char> - struct str_writer { - const Char *s; - std::size_t size; - - template <typename It> - void operator()(It &&it) const { - it = std::copy_n(s, size, it); - } - }; - - // Writes a formatted string. - template <typename Char> - void write_str(const Char *s, std::size_t size, const align_spec &spec) { - write_padded(size, spec, str_writer<Char>{s, size}); - } - - template <typename Char> - void write_str(basic_string_view<Char> str, const format_specs &spec); - - // Appends floating-point length specifier to the format string. - // The second argument is only used for overload resolution. - void append_float_length(char_type *&format_ptr, long double) { - *format_ptr++ = 'L'; - } - - template<typename T> - void append_float_length(char_type *&, T) {} - - template <typename Char> - friend class internal::arg_formatter_base; - - public: - /** Constructs a ``basic_writer`` object. */ - explicit basic_writer(Range out): out_(out.begin()) {} - - void write(int value) { write_decimal(value); } - void write(long value) { write_decimal(value); } - void write(long long value) { write_decimal(value); } - - void write(unsigned value) { write_decimal(value); } - void write(unsigned long value) { write_decimal(value); } - void write(unsigned long long value) { write_decimal(value); } - - /** - \rst - Formats *value* and writes it to the buffer. - \endrst - */ - template <typename T, typename FormatSpec, typename... FormatSpecs> - typename std::enable_if<std::is_integral<T>::value, void>::type - write(T value, FormatSpec spec, FormatSpecs... specs) { - format_specs s(spec, specs...); - s.align_ = ALIGN_RIGHT; - write_int(value, s); - } - - void write(double value) { - write_double(value, format_specs()); - } - - /** - \rst - Formats *value* using the general format for floating-point numbers - (``'g'``) and writes it to the buffer. - \endrst - */ - void write(long double value) { - write_double(value, format_specs()); - } - - /** Writes a character to the buffer. */ - void write(char value) { - *reserve(1) = value; - } - - void write(wchar_t value) { - internal::require_wchar<char_type>(); - *reserve(1) = value; - } - - /** - \rst - Writes *value* to the buffer. - \endrst - */ - void write(string_view value) { - auto &&it = reserve(value.size()); - it = std::copy(value.begin(), value.end(), it); - } - - void write(wstring_view value) { - internal::require_wchar<char_type>(); - auto &&it = reserve(value.size()); - it = std::uninitialized_copy(value.begin(), value.end(), it); - } - - template <typename... FormatSpecs> - void write(basic_string_view<char_type> str, FormatSpecs... specs) { - write_str(str, format_specs(specs...)); - } - - template <typename T> - typename std::enable_if<std::is_same<T, void>::value>::type write(const T* p) { - format_specs specs; - specs.flags_ = HASH_FLAG; - specs.type_ = 'x'; - write_int(reinterpret_cast<uintptr_t>(p), specs); - } -}; - -template <typename Range> -template <typename F> -void basic_writer<Range>::write_padded( - std::size_t size, const align_spec &spec, F f) { - unsigned width = spec.width(); - if (width <= size) - return f(reserve(size)); - auto &&it = reserve(width); - char_type fill = static_cast<char_type>(spec.fill()); - std::size_t padding = width - size; - if (spec.align() == ALIGN_RIGHT) { - it = std::fill_n(it, padding, fill); - f(it); - } else if (spec.align() == ALIGN_CENTER) { - std::size_t left_padding = padding / 2; - it = std::fill_n(it, left_padding, fill); - f(it); - it = std::fill_n(it, padding - left_padding, fill); - } else { - f(it); - it = std::fill_n(it, padding, fill); - } -} - -template <typename Range> -template <typename Char> -void basic_writer<Range>::write_str( - basic_string_view<Char> s, const format_specs &spec) { - const Char *data = s.data(); - std::size_t size = s.size(); - std::size_t precision = static_cast<std::size_t>(spec.precision_); - if (spec.precision_ >= 0 && precision < size) - size = precision; - write_str(data, size, spec); -} - -template <typename Char> -struct float_spec_handler { - Char type; - bool upper; - - explicit float_spec_handler(Char t) : type(t), upper(false) {} - - void on_general() { - if (type == 'G') - upper = true; - else - type = 'g'; - } - - void on_exp() { - if (type == 'E') - upper = true; - } - - void on_fixed() { - if (type == 'F') { - upper = true; -#if FMT_MSC_VER - // MSVC's printf doesn't support 'F'. - type = 'f'; -#endif - } - } - - void on_hex() { - if (type == 'A') - upper = true; - } - - void on_error() { - FMT_THROW(format_error("invalid type specifier")); - } -}; - -template <typename Range> -template <typename T> -void basic_writer<Range>::write_double(T value, const format_specs &spec) { - // Check type. - float_spec_handler<char_type> handler(spec.type()); - internal::handle_float_type_spec(spec.type(), handler); - - char sign = 0; - // Use isnegative instead of value < 0 because the latter is always - // false for NaN. - if (internal::fputil::isnegative(static_cast<double>(value))) { - sign = '-'; - value = -value; - } else if (spec.flag(SIGN_FLAG)) { - sign = spec.flag(PLUS_FLAG) ? '+' : ' '; - } - - struct write_inf_or_nan_t { - basic_writer &writer; - format_specs spec; - char sign; - void operator()(const char *str) const { - writer.write_padded(INF_SIZE + (sign ? 1 : 0), spec, - inf_or_nan_writer{sign, str}); - } - } write_inf_or_nan = {*this, spec, sign}; - - // Format NaN and ininity ourselves because sprintf's output is not consistent - // across platforms. - if (internal::fputil::isnotanumber(value)) - return write_inf_or_nan(handler.upper ? "NAN" : "nan"); - if (internal::fputil::isinfinity(value)) - return write_inf_or_nan(handler.upper ? "INF" : "inf"); - - basic_memory_buffer<char_type> buffer; - if (FMT_USE_GRISU && sizeof(T) <= sizeof(double) && - std::numeric_limits<double>::is_iec559) { - internal::fp fp_value(static_cast<double>(value)); - fp_value.normalize(); - // Find a cached power of 10 close to 1 / fp_value. - int dec_exp = 0; - const int min_exp = -60; - auto dec_pow = internal::get_cached_power( - min_exp - (fp_value.e + internal::fp::significand_size), dec_exp); - internal::fp product = fp_value * dec_pow; - // Generate output. - internal::fp one(1ull << -product.e, product.e); - uint64_t hi = product.f >> -one.e; - uint64_t f = product.f & (one.f - 1); - typedef back_insert_range<internal::basic_buffer<char_type>> range; - basic_writer<range> w{range(buffer)}; - w.write(hi); - size_t digits = buffer.size(); - w.write('.'); - const unsigned max_digits = 18; - while (digits++ < max_digits) { - f *= 10; - w.write(static_cast<char>('0' + (f >> -one.e))); - f &= one.f - 1; - } - w.write('e'); - w.write(-dec_exp); - } else { - format_specs normalized_spec(spec); - normalized_spec.type_ = handler.type; - write_double_sprintf(value, normalized_spec, buffer); - } - size_t n = buffer.size(); - align_spec as = spec; - if (spec.align() == ALIGN_NUMERIC) { - if (sign) { - auto &&it = reserve(1); - *it++ = sign; - sign = 0; - if (as.width_) - --as.width_; - } - as.align_ = ALIGN_RIGHT; - } else { - if (spec.align() == ALIGN_DEFAULT) - as.align_ = ALIGN_RIGHT; - if (sign) - ++n; - } - write_padded(n, as, double_writer{n, sign, buffer}); -} - -template <typename Range> -template <typename T> -void basic_writer<Range>::write_double_sprintf( - T value, const format_specs &spec, - internal::basic_buffer<char_type>& buffer) { - // Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail. - FMT_ASSERT(buffer.capacity() != 0, "empty buffer"); - - // Build format string. - enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg - char_type format[MAX_FORMAT_SIZE]; - char_type *format_ptr = format; - *format_ptr++ = '%'; - if (spec.flag(HASH_FLAG)) - *format_ptr++ = '#'; - if (spec.precision() >= 0) { - *format_ptr++ = '.'; - *format_ptr++ = '*'; - } - - append_float_length(format_ptr, value); - *format_ptr++ = spec.type(); - *format_ptr = '\0'; - - // Format using snprintf. - char_type *start = FMT_NULL; - for (;;) { - std::size_t buffer_size = buffer.capacity(); - start = &buffer[0]; - int result = internal::char_traits<char_type>::format_float( - start, buffer_size, format, spec.precision(), value); - if (result >= 0) { - unsigned n = internal::to_unsigned(result); - if (n < buffer.capacity()) { - buffer.resize(n); - break; // The buffer is large enough - continue with formatting. - } - buffer.reserve(n + 1); - } else { - // If result is negative we ask to increase the capacity by at least 1, - // but as std::vector, the buffer grows exponentially. - buffer.reserve(buffer.capacity() + 1); - } - } -} - -// Reports a system error without throwing an exception. -// Can be used to report errors from destructors. -FMT_API void report_system_error(int error_code, - string_view message) FMT_NOEXCEPT; - -#if FMT_USE_WINDOWS_H - -/** A Windows error. */ -class windows_error : public system_error { - private: - FMT_API void init(int error_code, string_view format_str, format_args args); - - public: - /** - \rst - Constructs a :class:`fmt::windows_error` object with the description - of the form - - .. parsed-literal:: - *<message>*: *<system-message>* - - where *<message>* is the formatted message and *<system-message>* is the - system message corresponding to the error code. - *error_code* is a Windows error code as given by ``GetLastError``. - If *error_code* is not a valid error code such as -1, the system message - will look like "error -1". - - **Example**:: - - // This throws a windows_error with the description - // cannot open file 'madeup': The system cannot find the file specified. - // or similar (system message may vary). - const char *filename = "madeup"; - LPOFSTRUCT of = LPOFSTRUCT(); - HFILE file = OpenFile(filename, &of, OF_READ); - if (file == HFILE_ERROR) { - throw fmt::windows_error(GetLastError(), - "cannot open file '{}'", filename); - } - \endrst - */ - template <typename... Args> - windows_error(int error_code, string_view message, const Args & ... args) { - init(error_code, message, make_format_args(args...)); - } -}; - -// Reports a Windows error without throwing an exception. -// Can be used to report errors from destructors. -FMT_API void report_windows_error(int error_code, - string_view message) FMT_NOEXCEPT; - -#endif - -/** Fast integer formatter. */ -class format_int { - private: - // Buffer should be large enough to hold all digits (digits10 + 1), - // a sign and a null character. - enum {BUFFER_SIZE = std::numeric_limits<unsigned long long>::digits10 + 3}; - mutable char buffer_[BUFFER_SIZE]; - char *str_; - - // Formats value in reverse and returns a pointer to the beginning. - char *format_decimal(unsigned long long value) { - char *ptr = buffer_ + BUFFER_SIZE - 1; - while (value >= 100) { - // Integer division is slow so do it for a group of two digits instead - // of for every digit. The idea comes from the talk by Alexandrescu - // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast<unsigned>((value % 100) * 2); - value /= 100; - *--ptr = internal::data::DIGITS[index + 1]; - *--ptr = internal::data::DIGITS[index]; - } - if (value < 10) { - *--ptr = static_cast<char>('0' + value); - return ptr; - } - unsigned index = static_cast<unsigned>(value * 2); - *--ptr = internal::data::DIGITS[index + 1]; - *--ptr = internal::data::DIGITS[index]; - return ptr; - } - - void format_signed(long long value) { - unsigned long long abs_value = static_cast<unsigned long long>(value); - bool negative = value < 0; - if (negative) - abs_value = 0 - abs_value; - str_ = format_decimal(abs_value); - if (negative) - *--str_ = '-'; - } - - public: - explicit format_int(int value) { format_signed(value); } - explicit format_int(long value) { format_signed(value); } - explicit format_int(long long value) { format_signed(value); } - explicit format_int(unsigned value) : str_(format_decimal(value)) {} - explicit format_int(unsigned long value) : str_(format_decimal(value)) {} - explicit format_int(unsigned long long value) : str_(format_decimal(value)) {} - - /** Returns the number of characters written to the output buffer. */ - std::size_t size() const { - return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1); - } - - /** - Returns a pointer to the output buffer content. No terminating null - character is appended. - */ - const char *data() const { return str_; } - - /** - Returns a pointer to the output buffer content with terminating null - character appended. - */ - const char *c_str() const { - buffer_[BUFFER_SIZE - 1] = '\0'; - return str_; - } - - /** - \rst - Returns the content of the output buffer as an ``std::string``. - \endrst - */ - std::string str() const { return std::string(str_, size()); } -}; - -// Formats a decimal integer value writing into buffer and returns -// a pointer to the end of the formatted string. This function doesn't -// write a terminating null character. -template <typename T> -inline void format_decimal(char *&buffer, T value) { - typedef typename internal::int_traits<T>::main_type main_type; - main_type abs_value = static_cast<main_type>(value); - if (internal::is_negative(value)) { - *buffer++ = '-'; - abs_value = 0 - abs_value; - } - if (abs_value < 100) { - if (abs_value < 10) { - *buffer++ = static_cast<char>('0' + abs_value); - return; - } - unsigned index = static_cast<unsigned>(abs_value * 2); - *buffer++ = internal::data::DIGITS[index]; - *buffer++ = internal::data::DIGITS[index + 1]; - return; - } - unsigned num_digits = internal::count_digits(abs_value); - internal::format_decimal(buffer, abs_value, num_digits); - buffer += num_digits; -} - -// Formatter of objects of type T. -template <typename T, typename Char> -struct formatter< - T, Char, - typename std::enable_if<internal::format_type< - typename buffer_context<Char>::type, T>::value>::type> { - - // Parses format specifiers stopping either at the end of the range or at the - // terminating '}'. - template <typename ParseContext> - FMT_CONSTEXPR typename ParseContext::iterator parse(ParseContext &ctx) { - auto it = internal::null_terminating_iterator<Char>(ctx); - typedef internal::dynamic_specs_handler<ParseContext> handler_type; - auto type = internal::get_type< - typename buffer_context<Char>::type, T>::value; - internal::specs_checker<handler_type> - handler(handler_type(specs_, ctx), type); - it = parse_format_specs(it, handler); - auto type_spec = specs_.type(); - auto eh = ctx.error_handler(); - switch (type) { - case internal::none_type: - case internal::named_arg_type: - FMT_ASSERT(false, "invalid argument type"); - break; - case internal::int_type: - case internal::uint_type: - case internal::long_long_type: - case internal::ulong_long_type: - case internal::bool_type: - handle_int_type_spec( - type_spec, internal::int_type_checker<decltype(eh)>(eh)); - break; - case internal::char_type: - handle_char_specs( - specs_, - internal::char_specs_checker<decltype(eh), decltype(type_spec)>( - type_spec, eh)); - break; - case internal::double_type: - case internal::long_double_type: - handle_float_type_spec( - type_spec, internal::float_type_checker<decltype(eh)>(eh)); - break; - case internal::cstring_type: - internal::handle_cstring_type_spec( - type_spec, internal::cstring_type_checker<decltype(eh)>(eh)); - break; - case internal::string_type: - internal::check_string_type_spec(type_spec, eh); - break; - case internal::pointer_type: - internal::check_pointer_type_spec(type_spec, eh); - break; - case internal::custom_type: - // Custom format specifiers should be checked in parse functions of - // formatter specializations. - break; - } - return pointer_from(it); - } - - template <typename FormatContext> - auto format(const T &val, FormatContext &ctx) -> decltype(ctx.out()) { - internal::handle_dynamic_spec<internal::width_checker>( - specs_.width_, specs_.width_ref, ctx); - internal::handle_dynamic_spec<internal::precision_checker>( - specs_.precision_, specs_.precision_ref, ctx); - typedef output_range<typename FormatContext::iterator, - typename FormatContext::char_type> range_type; - return visit(arg_formatter<range_type>(ctx, specs_), - internal::make_arg<FormatContext>(val)); - } - - private: - internal::dynamic_format_specs<Char> specs_; -}; - -template <typename T, typename Char> -struct formatter<T, Char, - typename std::enable_if<internal::format_enum<T>::value>::type> - : public formatter<int, Char> { - template <typename ParseContext> - auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { - return ctx.begin(); - } -}; - -// A formatter for types known only at run time such as variant alternatives. -// -// Usage: -// typedef std::variant<int, std::string> variant; -// template <> -// struct formatter<variant>: dynamic_formatter<> { -// void format(buffer &buf, const variant &v, context &ctx) { -// visit([&](const auto &val) { format(buf, val, ctx); }, v); -// } -// }; -template <typename Char = char> -class dynamic_formatter { - private: - struct null_handler: internal::error_handler { - void on_align(alignment) {} - void on_plus() {} - void on_minus() {} - void on_space() {} - void on_hash() {} - }; - - public: - template <typename ParseContext> - auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { - auto it = internal::null_terminating_iterator<Char>(ctx); - // Checks are deferred to formatting time when the argument type is known. - internal::dynamic_specs_handler<ParseContext> handler(specs_, ctx); - it = parse_format_specs(it, handler); - return pointer_from(it); - } - - template <typename T, typename FormatContext> - auto format(const T &val, FormatContext &ctx) -> decltype(ctx.out()) { - handle_specs(ctx); - internal::specs_checker<null_handler> - checker(null_handler(), internal::get_type<FormatContext, T>::value); - checker.on_align(specs_.align()); - if (specs_.flags_ == 0) { - // Do nothing. - } else if (specs_.flag(SIGN_FLAG)) { - if (specs_.flag(PLUS_FLAG)) - checker.on_plus(); - else - checker.on_space(); - } else if (specs_.flag(MINUS_FLAG)) { - checker.on_minus(); - } else if (specs_.flag(HASH_FLAG)) { - checker.on_hash(); - } - if (specs_.precision_ != -1) - checker.end_precision(); - typedef output_range<typename FormatContext::iterator, - typename FormatContext::char_type> range; - visit(arg_formatter<range>(ctx, specs_), - internal::make_arg<FormatContext>(val)); - return ctx.out(); - } - - private: - template <typename Context> - void handle_specs(Context &ctx) { - internal::handle_dynamic_spec<internal::width_checker>( - specs_.width_, specs_.width_ref, ctx); - internal::handle_dynamic_spec<internal::precision_checker>( - specs_.precision_, specs_.precision_ref, ctx); - } - - internal::dynamic_format_specs<Char> specs_; -}; - -template <typename Range, typename Char> -typename basic_format_context<Range, Char>::format_arg - basic_format_context<Range, Char>::get_arg(basic_string_view<char_type> name) { - map_.init(this->args()); - format_arg arg = map_.find(name); - if (arg.type() == internal::none_type) - this->on_error("argument not found"); - return arg; -} - -template <typename ArgFormatter, typename Char, typename Context> -struct format_handler : internal::error_handler { - typedef internal::null_terminating_iterator<Char> iterator; - typedef typename ArgFormatter::range range; - - format_handler(range r, basic_string_view<Char> str, - basic_format_args<Context> format_args) - : context(r.begin(), str, format_args) {} - - void on_text(iterator begin, iterator end) { - auto size = internal::to_unsigned(end - begin); - auto out = context.out(); - auto &&it = internal::reserve(out, size); - it = std::copy_n(begin, size, it); - context.advance_to(out); - } - - void on_arg_id() { arg = context.next_arg(); } - void on_arg_id(unsigned id) { - context.parse_context().check_arg_id(id); - arg = context.get_arg(id); - } - void on_arg_id(basic_string_view<Char> id) { - arg = context.get_arg(id); - } - - void on_replacement_field(iterator it) { - context.parse_context().advance_to(pointer_from(it)); - if (visit(internal::custom_formatter<Char, Context>(context), arg)) - return; - basic_format_specs<Char> specs; - context.advance_to(visit(ArgFormatter(context, specs), arg)); - } - - iterator on_format_specs(iterator it) { - auto& parse_ctx = context.parse_context(); - parse_ctx.advance_to(pointer_from(it)); - if (visit(internal::custom_formatter<Char, Context>(context), arg)) - return iterator(parse_ctx); - basic_format_specs<Char> specs; - using internal::specs_handler; - internal::specs_checker<specs_handler<Context>> - handler(specs_handler<Context>(specs, context), arg.type()); - it = parse_format_specs(it, handler); - if (*it != '}') - on_error("missing '}' in format string"); - parse_ctx.advance_to(pointer_from(it)); - context.advance_to(visit(ArgFormatter(context, specs), arg)); - return it; - } - - Context context; - basic_format_arg<Context> arg; -}; - -/** Formats arguments and writes the output to the range. */ -template <typename ArgFormatter, typename Char, typename Context> -typename Context::iterator vformat_to(typename ArgFormatter::range out, - basic_string_view<Char> format_str, - basic_format_args<Context> args) { - typedef internal::null_terminating_iterator<Char> iterator; - format_handler<ArgFormatter, Char, Context> h(out, format_str, args); - parse_format_string(iterator(format_str.begin(), format_str.end()), h); - return h.context.out(); -} - -// Casts ``p`` to ``const void*`` for pointer formatting. -// Example: -// auto s = format("{}", ptr(p)); -template <typename T> -inline const void *ptr(const T *p) { return p; } - -template <typename It, typename Char> -struct arg_join { - It begin; - It end; - basic_string_view<Char> sep; - - arg_join(It begin, It end, basic_string_view<Char> sep) - : begin(begin), end(end), sep(sep) {} -}; - -template <typename It, typename Char> -struct formatter<arg_join<It, Char>, Char>: - formatter<typename std::iterator_traits<It>::value_type, Char> { - template <typename FormatContext> - auto format(const arg_join<It, Char> &value, FormatContext &ctx) - -> decltype(ctx.out()) { - typedef formatter<typename std::iterator_traits<It>::value_type, Char> base; - auto it = value.begin; - auto out = ctx.out(); - if (it != value.end) { - out = base::format(*it++, ctx); - while (it != value.end) { - out = std::copy(value.sep.begin(), value.sep.end(), out); - ctx.advance_to(out); - out = base::format(*it++, ctx); - } - } - return out; - } -}; - -template <typename It> -arg_join<It, char> join(It begin, It end, string_view sep) { - return arg_join<It, char>(begin, end, sep); -} - -template <typename It> -arg_join<It, wchar_t> join(It begin, It end, wstring_view sep) { - return arg_join<It, wchar_t>(begin, end, sep); -} - -// The following causes ICE in gcc 4.4. -#if FMT_USE_TRAILING_RETURN && (!FMT_GCC_VERSION || FMT_GCC_VERSION >= 405) -template <typename Range> -auto join(const Range &range, string_view sep) - -> arg_join<decltype(internal::begin(range)), char> { - return join(internal::begin(range), internal::end(range), sep); -} - -template <typename Range> -auto join(const Range &range, wstring_view sep) - -> arg_join<decltype(internal::begin(range)), wchar_t> { - return join(internal::begin(range), internal::end(range), sep); -} -#endif - -/** - \rst - Converts *value* to ``std::string`` using the default format for type *T*. - - **Example**:: - - #include <fmt/format.h> - - std::string answer = fmt::to_string(42); - \endrst - */ -template <typename T> -std::string to_string(const T &value) { - std::string str; - internal::container_buffer<std::string> buf(str); - writer(buf).write(value); - return str; -} - -/** - Converts *value* to ``std::wstring`` using the default format for type *T*. - */ -template <typename T> -std::wstring to_wstring(const T &value) { - std::wstring str; - internal::container_buffer<std::wstring> buf(str); - wwriter(buf).write(value); - return str; -} - -template <typename Char, std::size_t SIZE> -std::basic_string<Char> to_string(const basic_memory_buffer<Char, SIZE> &buf) { - return std::basic_string<Char>(buf.data(), buf.size()); -} - -inline format_context::iterator vformat_to( - internal::buffer &buf, string_view format_str, format_args args) { - typedef back_insert_range<internal::buffer> range; - return vformat_to<arg_formatter<range>>(buf, format_str, args); -} - -inline wformat_context::iterator vformat_to( - internal::wbuffer &buf, wstring_view format_str, wformat_args args) { - typedef back_insert_range<internal::wbuffer> range; - return vformat_to<arg_formatter<range>>(buf, format_str, args); -} - -template <typename... Args, std::size_t SIZE = inline_buffer_size> -inline format_context::iterator format_to( - basic_memory_buffer<char, SIZE> &buf, string_view format_str, - const Args & ... args) { - return vformat_to(buf, format_str, make_format_args(args...)); -} - -template <typename... Args, std::size_t SIZE = inline_buffer_size> -inline wformat_context::iterator format_to( - basic_memory_buffer<wchar_t, SIZE> &buf, wstring_view format_str, - const Args & ... args) { - return vformat_to(buf, format_str, make_format_args<wformat_context>(args...)); -} - -template <typename OutputIt, typename Char = char> -//using format_context_t = basic_format_context<OutputIt, Char>; -struct format_context_t { typedef basic_format_context<OutputIt, Char> type; }; - -template <typename OutputIt, typename Char = char> -//using format_args_t = basic_format_args<format_context_t<OutputIt, Char>>; -struct format_args_t { - typedef basic_format_args< - typename format_context_t<OutputIt, Char>::type> type; -}; - -template <typename OutputIt, typename... Args> -inline OutputIt vformat_to(OutputIt out, string_view format_str, - typename format_args_t<OutputIt>::type args) { - typedef output_range<OutputIt, char> range; - return vformat_to<arg_formatter<range>>(range(out), format_str, args); -} -template <typename OutputIt, typename... Args> -inline OutputIt vformat_to( - OutputIt out, wstring_view format_str, - typename format_args_t<OutputIt, wchar_t>::type args) { - typedef output_range<OutputIt, wchar_t> range; - return vformat_to<arg_formatter<range>>(range(out), format_str, args); -} - -/** - \rst - Formats arguments, writes the result to the output iterator ``out`` and returns - the iterator past the end of the output range. - - **Example**:: - - std::vector<char> out; - fmt::format_to(std::back_inserter(out), "{}", 42); - \endrst - */ -template <typename OutputIt, typename... Args> -inline OutputIt format_to(OutputIt out, string_view format_str, - const Args & ... args) { - return vformat_to(out, format_str, - make_format_args<typename format_context_t<OutputIt>::type>(args...)); -} - -template <typename Container, typename... Args> -inline typename std::enable_if< - is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type - format_to(std::back_insert_iterator<Container> out, - string_view format_str, const Args & ... args) { - return vformat_to(out, format_str, make_format_args<format_context>(args...)); -} - -template <typename Container, typename... Args> -inline typename std::enable_if< - is_contiguous<Container>::value, std::back_insert_iterator<Container>>::type - format_to(std::back_insert_iterator<Container> out, - wstring_view format_str, const Args & ... args) { - return vformat_to(out, format_str, make_format_args<wformat_context>(args...)); -} - -template <typename OutputIt> -struct format_to_n_result { - /** Iterator past the end of the output range. */ - OutputIt out; - /** Total (not truncated) output size. */ - std::size_t size; -}; - -template <typename OutputIt> -using format_to_n_context = typename fmt::format_context_t< - fmt::internal::truncating_iterator<OutputIt>>::type; - -template <typename OutputIt> -using format_to_n_args = fmt::basic_format_args<format_to_n_context<OutputIt>>; - -template <typename OutputIt, typename ...Args> -inline format_arg_store<format_to_n_context<OutputIt>, Args...> - make_format_to_n_args(const Args & ... args) { - return format_arg_store<format_to_n_context<OutputIt>, Args...>(args...); -} - -template <typename OutputIt, typename... Args> -inline format_to_n_result<OutputIt> vformat_to_n( - OutputIt out, std::size_t n, string_view format_str, - format_to_n_args<OutputIt> args) { - typedef internal::truncating_iterator<OutputIt> It; - auto it = vformat_to(It(out, n), format_str, args); - return {it.base(), it.count()}; -} - -/** - \rst - Formats arguments, writes up to ``n`` characters of the result to the output - iterator ``out`` and returns the total output size and the iterator past the end - of the output range. - \endrst - */ -template <typename OutputIt, typename... Args> -inline format_to_n_result<OutputIt> format_to_n( - OutputIt out, std::size_t n, string_view format_str, const Args &... args) { - return vformat_to_n<OutputIt>( - out, n, format_str, make_format_to_n_args<OutputIt>(args...)); -} -template <typename OutputIt, typename... Args> -inline format_to_n_result<OutputIt> format_to_n( - OutputIt out, std::size_t n, wstring_view format_str, const Args &... args) { - typedef internal::truncating_iterator<OutputIt> It; - auto it = vformat_to(It(out, n), format_str, - make_format_args<typename format_context_t<It, wchar_t>::type>(args...)); - return {it.base(), it.count()}; -} - -inline std::string vformat(string_view format_str, format_args args) { - memory_buffer buffer; - vformat_to(buffer, format_str, args); - return fmt::to_string(buffer); -} - -inline std::wstring vformat(wstring_view format_str, wformat_args args) { - wmemory_buffer buffer; - vformat_to(buffer, format_str, args); - return to_string(buffer); -} - -template <typename String, typename... Args> -inline typename std::enable_if< - internal::is_format_string<String>::value, std::string>::type - format(String format_str, const Args & ... args) { - internal::check_format_string<Args...>(format_str); - return vformat(format_str.data(), make_format_args(args...)); -} - -template <typename String, typename... Args> -inline typename std::enable_if<internal::is_format_string<String>::value>::type - print(String format_str, const Args & ... args) { - internal::check_format_string<Args...>(format_str); - return vprint(format_str.data(), make_format_args(args...)); -} - -/** - Returns the number of characters in the output of - ``format(format_str, args...)``. - */ -template <typename... Args> -inline std::size_t formatted_size(string_view format_str, - const Args & ... args) { - auto it = format_to(internal::counting_iterator<char>(), format_str, args...); - return it.count(); -} - -// Experimental color support. -#ifdef FMT_EXTENDED_COLORS -enum class color : uint32_t { - alice_blue = 0xF0F8FF, // rgb(240,248,255) - antique_white = 0xFAEBD7, // rgb(250,235,215) - aqua = 0x00FFFF, // rgb(0,255,255) - aquamarine = 0x7FFFD4, // rgb(127,255,212) - azure = 0xF0FFFF, // rgb(240,255,255) - beige = 0xF5F5DC, // rgb(245,245,220) - bisque = 0xFFE4C4, // rgb(255,228,196) - black = 0x000000, // rgb(0,0,0) - blanched_almond = 0xFFEBCD, // rgb(255,235,205) - blue = 0x0000FF, // rgb(0,0,255) - blue_violet = 0x8A2BE2, // rgb(138,43,226) - brown = 0xA52A2A, // rgb(165,42,42) - burly_wood = 0xDEB887, // rgb(222,184,135) - cadet_blue = 0x5F9EA0, // rgb(95,158,160) - chartreuse = 0x7FFF00, // rgb(127,255,0) - chocolate = 0xD2691E, // rgb(210,105,30) - coral = 0xFF7F50, // rgb(255,127,80) - cornflower_blue = 0x6495ED, // rgb(100,149,237) - cornsilk = 0xFFF8DC, // rgb(255,248,220) - crimson = 0xDC143C, // rgb(220,20,60) - cyan = 0x00FFFF, // rgb(0,255,255) - dark_blue = 0x00008B, // rgb(0,0,139) - dark_cyan = 0x008B8B, // rgb(0,139,139) - dark_golden_rod = 0xB8860B, // rgb(184,134,11) - dark_gray = 0xA9A9A9, // rgb(169,169,169) - dark_green = 0x006400, // rgb(0,100,0) - dark_khaki = 0xBDB76B, // rgb(189,183,107) - dark_magenta = 0x8B008B, // rgb(139,0,139) - dark_olive_green = 0x556B2F, // rgb(85,107,47) - dark_orange = 0xFF8C00, // rgb(255,140,0) - dark_orchid = 0x9932CC, // rgb(153,50,204) - dark_red = 0x8B0000, // rgb(139,0,0) - dark_salmon = 0xE9967A, // rgb(233,150,122) - dark_sea_green = 0x8FBC8F, // rgb(143,188,143) - dark_slate_blue = 0x483D8B, // rgb(72,61,139) - dark_slate_gray = 0x2F4F4F, // rgb(47,79,79) - dark_turquoise = 0x00CED1, // rgb(0,206,209) - dark_violet = 0x9400D3, // rgb(148,0,211) - deep_pink = 0xFF1493, // rgb(255,20,147) - deep_sky_blue = 0x00BFFF, // rgb(0,191,255) - dim_gray = 0x696969, // rgb(105,105,105) - dodger_blue = 0x1E90FF, // rgb(30,144,255) - fire_brick = 0xB22222, // rgb(178,34,34) - floral_white = 0xFFFAF0, // rgb(255,250,240) - forest_green = 0x228B22, // rgb(34,139,34) - fuchsia = 0xFF00FF, // rgb(255,0,255) - gainsboro = 0xDCDCDC, // rgb(220,220,220) - ghost_white = 0xF8F8FF, // rgb(248,248,255) - gold = 0xFFD700, // rgb(255,215,0) - golden_rod = 0xDAA520, // rgb(218,165,32) - gray = 0x808080, // rgb(128,128,128) - green = 0x008000, // rgb(0,128,0) - green_yellow = 0xADFF2F, // rgb(173,255,47) - honey_dew = 0xF0FFF0, // rgb(240,255,240) - hot_pink = 0xFF69B4, // rgb(255,105,180) - indian_red = 0xCD5C5C, // rgb(205,92,92) - indigo = 0x4B0082, // rgb(75,0,130) - ivory = 0xFFFFF0, // rgb(255,255,240) - khaki = 0xF0E68C, // rgb(240,230,140) - lavender = 0xE6E6FA, // rgb(230,230,250) - lavender_blush = 0xFFF0F5, // rgb(255,240,245) - lawn_green = 0x7CFC00, // rgb(124,252,0) - lemon_chiffon = 0xFFFACD, // rgb(255,250,205) - light_blue = 0xADD8E6, // rgb(173,216,230) - light_coral = 0xF08080, // rgb(240,128,128) - light_cyan = 0xE0FFFF, // rgb(224,255,255) - light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210) - light_gray = 0xD3D3D3, // rgb(211,211,211) - light_green = 0x90EE90, // rgb(144,238,144) - light_pink = 0xFFB6C1, // rgb(255,182,193) - light_salmon = 0xFFA07A, // rgb(255,160,122) - light_sea_green = 0x20B2AA, // rgb(32,178,170) - light_sky_blue = 0x87CEFA, // rgb(135,206,250) - light_slate_gray = 0x778899, // rgb(119,136,153) - light_steel_blue = 0xB0C4DE, // rgb(176,196,222) - light_yellow = 0xFFFFE0, // rgb(255,255,224) - lime = 0x00FF00, // rgb(0,255,0) - lime_green = 0x32CD32, // rgb(50,205,50) - linen = 0xFAF0E6, // rgb(250,240,230) - magenta = 0xFF00FF, // rgb(255,0,255) - maroon = 0x800000, // rgb(128,0,0) - medium_aquamarine = 0x66CDAA, // rgb(102,205,170) - medium_blue = 0x0000CD, // rgb(0,0,205) - medium_orchid = 0xBA55D3, // rgb(186,85,211) - medium_purple = 0x9370DB, // rgb(147,112,219) - medium_sea_green = 0x3CB371, // rgb(60,179,113) - medium_slate_blue = 0x7B68EE, // rgb(123,104,238) - medium_spring_green = 0x00FA9A, // rgb(0,250,154) - medium_turquoise = 0x48D1CC, // rgb(72,209,204) - medium_violet_red = 0xC71585, // rgb(199,21,133) - midnight_blue = 0x191970, // rgb(25,25,112) - mint_cream = 0xF5FFFA, // rgb(245,255,250) - misty_rose = 0xFFE4E1, // rgb(255,228,225) - moccasin = 0xFFE4B5, // rgb(255,228,181) - navajo_white = 0xFFDEAD, // rgb(255,222,173) - navy = 0x000080, // rgb(0,0,128) - old_lace = 0xFDF5E6, // rgb(253,245,230) - olive = 0x808000, // rgb(128,128,0) - olive_drab = 0x6B8E23, // rgb(107,142,35) - orange = 0xFFA500, // rgb(255,165,0) - orange_red = 0xFF4500, // rgb(255,69,0) - orchid = 0xDA70D6, // rgb(218,112,214) - pale_golden_rod = 0xEEE8AA, // rgb(238,232,170) - pale_green = 0x98FB98, // rgb(152,251,152) - pale_turquoise = 0xAFEEEE, // rgb(175,238,238) - pale_violet_red = 0xDB7093, // rgb(219,112,147) - papaya_whip = 0xFFEFD5, // rgb(255,239,213) - peach_puff = 0xFFDAB9, // rgb(255,218,185) - peru = 0xCD853F, // rgb(205,133,63) - pink = 0xFFC0CB, // rgb(255,192,203) - plum = 0xDDA0DD, // rgb(221,160,221) - powder_blue = 0xB0E0E6, // rgb(176,224,230) - purple = 0x800080, // rgb(128,0,128) - rebecca_purple = 0x663399, // rgb(102,51,153) - red = 0xFF0000, // rgb(255,0,0) - rosy_brown = 0xBC8F8F, // rgb(188,143,143) - royal_blue = 0x4169E1, // rgb(65,105,225) - saddle_brown = 0x8B4513, // rgb(139,69,19) - salmon = 0xFA8072, // rgb(250,128,114) - sandy_brown = 0xF4A460, // rgb(244,164,96) - sea_green = 0x2E8B57, // rgb(46,139,87) - sea_shell = 0xFFF5EE, // rgb(255,245,238) - sienna = 0xA0522D, // rgb(160,82,45) - silver = 0xC0C0C0, // rgb(192,192,192) - sky_blue = 0x87CEEB, // rgb(135,206,235) - slate_blue = 0x6A5ACD, // rgb(106,90,205) - slate_gray = 0x708090, // rgb(112,128,144) - snow = 0xFFFAFA, // rgb(255,250,250) - spring_green = 0x00FF7F, // rgb(0,255,127) - steel_blue = 0x4682B4, // rgb(70,130,180) - tan = 0xD2B48C, // rgb(210,180,140) - teal = 0x008080, // rgb(0,128,128) - thistle = 0xD8BFD8, // rgb(216,191,216) - tomato = 0xFF6347, // rgb(255,99,71) - turquoise = 0x40E0D0, // rgb(64,224,208) - violet = 0xEE82EE, // rgb(238,130,238) - wheat = 0xF5DEB3, // rgb(245,222,179) - white = 0xFFFFFF, // rgb(255,255,255) - white_smoke = 0xF5F5F5, // rgb(245,245,245) - yellow = 0xFFFF00, // rgb(255,255,0) - yellow_green = 0x9ACD32, // rgb(154,205,50) -}; // enum class color - -// rgb is a struct for red, green and blue colors. -// We use rgb as name because some editors will show it as color direct in the -// editor. -struct rgb { - FMT_CONSTEXPR_DECL rgb() : r(0), g(0), b(0) {} - FMT_CONSTEXPR_DECL rgb(uint8_t r_, uint8_t g_, uint8_t b_) - : r(r_), g(g_), b(b_) {} - FMT_CONSTEXPR_DECL rgb(uint32_t hex) - : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b((hex) & 0xFF) {} - FMT_CONSTEXPR_DECL rgb(color hex) - : r((uint32_t(hex) >> 16) & 0xFF), g((uint32_t(hex) >> 8) & 0xFF), - b(uint32_t(hex) & 0xFF) {} - uint8_t r; - uint8_t g; - uint8_t b; -}; - -void vprint_rgb(rgb fd, string_view format, format_args args); -void vprint_rgb(rgb fd, rgb bg, string_view format, format_args args); - -/** - Formats a string and prints it to stdout using ANSI escape sequences to - specify foreground color 'fd'. - Example: - fmt::print(fmt::color::red, "Elapsed time: {0:.2f} seconds", 1.23); - */ -template <typename... Args> -inline void print(rgb fd, string_view format_str, const Args & ... args) { - vprint_rgb(fd, format_str, make_format_args(args...)); -} - -/** - Formats a string and prints it to stdout using ANSI escape sequences to - specify foreground color 'fd' and background color 'bg'. - Example: - fmt::print(fmt::color::red, fmt::color::black, "Elapsed time: {0:.2f} seconds", 1.23); - */ -template <typename... Args> -inline void print(rgb fd, rgb bg, string_view format_str, const Args & ... args) { - vprint_rgb(fd, bg, format_str, make_format_args(args...)); -} -#endif // FMT_EXTENDED_COLORS - -#if FMT_USE_USER_DEFINED_LITERALS -namespace internal { - -# if FMT_UDL_TEMPLATE -template <typename Char, Char... CHARS> -class udl_formatter { - public: - template <typename... Args> - std::basic_string<Char> operator()(const Args &... args) const { - FMT_CONSTEXPR_DECL Char s[] = {CHARS..., '\0'}; - FMT_CONSTEXPR_DECL bool invalid_format = - check_format_string<Char, error_handler, Args...>( - basic_string_view<Char>(s, sizeof...(CHARS))); - (void)invalid_format; - return format(s, args...); - } -}; -# else -template <typename Char> -struct udl_formatter { - const Char *str; - - template <typename... Args> - auto operator()(Args && ... args) const - -> decltype(format(str, std::forward<Args>(args)...)) { - return format(str, std::forward<Args>(args)...); - } -}; -# endif // FMT_UDL_TEMPLATE - -template <typename Char> -struct udl_arg { - const Char *str; - - template <typename T> - named_arg<T, Char> operator=(T &&value) const { - return {str, std::forward<T>(value)}; - } -}; - -} // namespace internal - -inline namespace literals { - -# if FMT_UDL_TEMPLATE -template <typename Char, Char... CHARS> -FMT_CONSTEXPR internal::udl_formatter<Char, CHARS...> operator""_format() { - return {}; -} -# else -/** - \rst - User-defined literal equivalent of :func:`fmt::format`. - - **Example**:: - - using namespace fmt::literals; - std::string message = "The answer is {}"_format(42); - \endrst - */ -inline internal::udl_formatter<char> -operator"" _format(const char *s, std::size_t) { return {s}; } -inline internal::udl_formatter<wchar_t> -operator"" _format(const wchar_t *s, std::size_t) { return {s}; } -# endif // FMT_UDL_TEMPLATE - -/** - \rst - User-defined literal equivalent of :func:`fmt::arg`. - - **Example**:: - - using namespace fmt::literals; - fmt::print("Elapsed time: {s:.2f} seconds", "s"_a=1.23); - \endrst - */ -inline internal::udl_arg<char> -operator"" _a(const char *s, std::size_t) { return {s}; } -inline internal::udl_arg<wchar_t> -operator"" _a(const wchar_t *s, std::size_t) { return {s}; } -} // inline namespace literals -#endif // FMT_USE_USER_DEFINED_LITERALS -FMT_END_NAMESPACE - -#define FMT_STRING(s) [] { \ - struct S : fmt::format_string { \ - static FMT_CONSTEXPR decltype(s) data() { return s; } \ - static FMT_CONSTEXPR size_t size() { return sizeof(s); } \ - }; \ - return S{}; \ - }() - -#ifndef FMT_NO_FMT_STRING_ALIAS -/** - \rst - Constructs a compile-time format string. - - **Example**:: - - #include <fmt/format.h> - // A compile-time error because 'd' is an invalid specifier for strings. - std::string s = format(fmt("{:d}"), "foo"); - \endrst - */ -# define fmt(s) FMT_STRING(s) -#endif - -#ifdef FMT_HEADER_ONLY -# define FMT_FUNC inline -# include "format-inl.h" -#else -# define FMT_FUNC -#endif - -// Restore warnings. -#if FMT_GCC_VERSION >= 406 || FMT_CLANG_VERSION -# pragma GCC diagnostic pop -#endif - -#endif // FMT_FORMAT_H_
--- a/libfmt/include/fmt/ostream.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,162 +0,0 @@ -// Formatting library for C++ - std::ostream support -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#ifndef FMT_OSTREAM_H_ -#define FMT_OSTREAM_H_ - -#include "format.h" -#include <ostream> - -FMT_BEGIN_NAMESPACE -namespace internal { - -template <class Char> -class formatbuf : public std::basic_streambuf<Char> { - private: - typedef typename std::basic_streambuf<Char>::int_type int_type; - typedef typename std::basic_streambuf<Char>::traits_type traits_type; - - basic_buffer<Char> &buffer_; - - public: - formatbuf(basic_buffer<Char> &buffer) : buffer_(buffer) {} - - protected: - // The put-area is actually always empty. This makes the implementation - // simpler and has the advantage that the streambuf and the buffer are always - // in sync and sputc never writes into uninitialized memory. The obvious - // disadvantage is that each call to sputc always results in a (virtual) call - // to overflow. There is no disadvantage here for sputn since this always - // results in a call to xsputn. - - int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE { - if (!traits_type::eq_int_type(ch, traits_type::eof())) - buffer_.push_back(static_cast<Char>(ch)); - return ch; - } - - std::streamsize xsputn(const Char *s, std::streamsize count) FMT_OVERRIDE { - buffer_.append(s, s + count); - return count; - } -}; - -template <typename Char> -struct test_stream : std::basic_ostream<Char> { - private: - struct null; - // Hide all operator<< from std::basic_ostream<Char>. - void operator<<(null); -}; - -// Checks if T has a user-defined operator<< (e.g. not a member of std::ostream). -template <typename T, typename Char> -class is_streamable { - private: - template <typename U> - static decltype( - internal::declval<test_stream<Char>&>() - << internal::declval<U>(), std::true_type()) test(int); - - template <typename> - static std::false_type test(...); - - typedef decltype(test<T>(0)) result; - - public: - // std::string operator<< is not considered user-defined because we handle strings - // specially. - static const bool value = result::value && !std::is_same<T, std::string>::value; -}; - -// Disable conversion to int if T has an overloaded operator<< which is a free -// function (not a member of std::ostream). -template <typename T, typename Char> -class convert_to_int<T, Char, true> { - public: - static const bool value = - convert_to_int<T, Char, false>::value && !is_streamable<T, Char>::value; -}; - -// Write the content of buf to os. -template <typename Char> -void write(std::basic_ostream<Char> &os, basic_buffer<Char> &buf) { - const Char *data = buf.data(); - typedef std::make_unsigned<std::streamsize>::type UnsignedStreamSize; - UnsignedStreamSize size = buf.size(); - UnsignedStreamSize max_size = - internal::to_unsigned((std::numeric_limits<std::streamsize>::max)()); - do { - UnsignedStreamSize n = size <= max_size ? size : max_size; - os.write(data, static_cast<std::streamsize>(n)); - data += n; - size -= n; - } while (size != 0); -} - -template <typename Char, typename T> -void format_value(basic_buffer<Char> &buffer, const T &value) { - internal::formatbuf<Char> format_buf(buffer); - std::basic_ostream<Char> output(&format_buf); - output.exceptions(std::ios_base::failbit | std::ios_base::badbit); - output << value; - buffer.resize(buffer.size()); -} - -// Disable builtin formatting of enums and use operator<< instead. -template <typename T> -struct format_enum<T, - typename std::enable_if<std::is_enum<T>::value>::type> : std::false_type {}; -} // namespace internal - -// Formats an object of type T that has an overloaded ostream operator<<. -template <typename T, typename Char> -struct formatter<T, Char, - typename std::enable_if<internal::is_streamable<T, Char>::value>::type> - : formatter<basic_string_view<Char>, Char> { - - template <typename Context> - auto format(const T &value, Context &ctx) -> decltype(ctx.out()) { - basic_memory_buffer<Char> buffer; - internal::format_value(buffer, value); - basic_string_view<Char> str(buffer.data(), buffer.size()); - formatter<basic_string_view<Char>, Char>::format(str, ctx); - return ctx.out(); - } -}; - -template <typename Char> -inline void vprint(std::basic_ostream<Char> &os, - basic_string_view<Char> format_str, - basic_format_args<typename buffer_context<Char>::type> args) { - basic_memory_buffer<Char> buffer; - vformat_to(buffer, format_str, args); - internal::write(os, buffer); -} -/** - \rst - Prints formatted data to the stream *os*. - - **Example**:: - - fmt::print(cerr, "Don't {}!", "panic"); - \endrst - */ -template <typename... Args> -inline void print(std::ostream &os, string_view format_str, - const Args & ... args) { - vprint<char>(os, format_str, make_format_args<format_context>(args...)); -} - -template <typename... Args> -inline void print(std::wostream &os, wstring_view format_str, - const Args & ... args) { - vprint<wchar_t>(os, format_str, make_format_args<wformat_context>(args...)); -} -FMT_END_NAMESPACE - -#endif // FMT_OSTREAM_H_
--- a/libfmt/include/fmt/posix.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,417 +0,0 @@ -// A C++ interface to POSIX functions. -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#ifndef FMT_POSIX_H_ -#define FMT_POSIX_H_ - -#if defined(__MINGW32__) || defined(__CYGWIN__) -// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/. -# undef __STRICT_ANSI__ -#endif - -#include <errno.h> -#include <fcntl.h> // for O_RDONLY -#include <locale.h> // for locale_t -#include <stdio.h> -#include <stdlib.h> // for strtod_l - -#include <cstddef> - -#if defined __APPLE__ || defined(__FreeBSD__) -# include <xlocale.h> // for LC_NUMERIC_MASK on OS X -#endif - -#include "format.h" - -#ifndef FMT_POSIX -# if defined(_WIN32) && !defined(__MINGW32__) -// Fix warnings about deprecated symbols. -# define FMT_POSIX(call) _##call -# else -# define FMT_POSIX(call) call -# endif -#endif - -// Calls to system functions are wrapped in FMT_SYSTEM for testability. -#ifdef FMT_SYSTEM -# define FMT_POSIX_CALL(call) FMT_SYSTEM(call) -#else -# define FMT_SYSTEM(call) call -# ifdef _WIN32 -// Fix warnings about deprecated symbols. -# define FMT_POSIX_CALL(call) ::_##call -# else -# define FMT_POSIX_CALL(call) ::call -# endif -#endif - -// Retries the expression while it evaluates to error_result and errno -// equals to EINTR. -#ifndef _WIN32 -# define FMT_RETRY_VAL(result, expression, error_result) \ - do { \ - result = (expression); \ - } while (result == error_result && errno == EINTR) -#else -# define FMT_RETRY_VAL(result, expression, error_result) result = (expression) -#endif - -#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1) - -FMT_BEGIN_NAMESPACE - -/** - \rst - A reference to a null-terminated string. It can be constructed from a C - string or ``std::string``. - - You can use one of the following typedefs for common character types: - - +---------------+-----------------------------+ - | Type | Definition | - +===============+=============================+ - | cstring_view | basic_cstring_view<char> | - +---------------+-----------------------------+ - | wcstring_view | basic_cstring_view<wchar_t> | - +---------------+-----------------------------+ - - This class is most useful as a parameter type to allow passing - different types of strings to a function, for example:: - - template <typename... Args> - std::string format(cstring_view format_str, const Args & ... args); - - format("{}", 42); - format(std::string("{}"), 42); - \endrst - */ -template <typename Char> -class basic_cstring_view { - private: - const Char *data_; - - public: - /** Constructs a string reference object from a C string. */ - basic_cstring_view(const Char *s) : data_(s) {} - - /** - \rst - Constructs a string reference from an ``std::string`` object. - \endrst - */ - basic_cstring_view(const std::basic_string<Char> &s) : data_(s.c_str()) {} - - /** Returns the pointer to a C string. */ - const Char *c_str() const { return data_; } -}; - -typedef basic_cstring_view<char> cstring_view; -typedef basic_cstring_view<wchar_t> wcstring_view; - -// An error code. -class error_code { - private: - int value_; - - public: - explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {} - - int get() const FMT_NOEXCEPT { return value_; } -}; - -// A buffered file. -class buffered_file { - private: - FILE *file_; - - friend class file; - - explicit buffered_file(FILE *f) : file_(f) {} - - public: - // Constructs a buffered_file object which doesn't represent any file. - buffered_file() FMT_NOEXCEPT : file_(FMT_NULL) {} - - // Destroys the object closing the file it represents if any. - FMT_API ~buffered_file() FMT_DTOR_NOEXCEPT; - -#if !FMT_USE_RVALUE_REFERENCES - // Emulate a move constructor and a move assignment operator if rvalue - // references are not supported. - - private: - // A proxy object to emulate a move constructor. - // It is private to make it impossible call operator Proxy directly. - struct Proxy { - FILE *file; - }; - -public: - // A "move constructor" for moving from a temporary. - buffered_file(Proxy p) FMT_NOEXCEPT : file_(p.file) {} - - // A "move constructor" for moving from an lvalue. - buffered_file(buffered_file &f) FMT_NOEXCEPT : file_(f.file_) { - f.file_ = FMT_NULL; - } - - // A "move assignment operator" for moving from a temporary. - buffered_file &operator=(Proxy p) { - close(); - file_ = p.file; - return *this; - } - - // A "move assignment operator" for moving from an lvalue. - buffered_file &operator=(buffered_file &other) { - close(); - file_ = other.file_; - other.file_ = FMT_NULL; - return *this; - } - - // Returns a proxy object for moving from a temporary: - // buffered_file file = buffered_file(...); - operator Proxy() FMT_NOEXCEPT { - Proxy p = {file_}; - file_ = FMT_NULL; - return p; - } - -#else - private: - FMT_DISALLOW_COPY_AND_ASSIGN(buffered_file); - - public: - buffered_file(buffered_file &&other) FMT_NOEXCEPT : file_(other.file_) { - other.file_ = FMT_NULL; - } - - buffered_file& operator=(buffered_file &&other) { - close(); - file_ = other.file_; - other.file_ = FMT_NULL; - return *this; - } -#endif - - // Opens a file. - FMT_API buffered_file(cstring_view filename, cstring_view mode); - - // Closes the file. - FMT_API void close(); - - // Returns the pointer to a FILE object representing this file. - FILE *get() const FMT_NOEXCEPT { return file_; } - - // We place parentheses around fileno to workaround a bug in some versions - // of MinGW that define fileno as a macro. - FMT_API int (fileno)() const; - - void vprint(string_view format_str, format_args args) { - fmt::vprint(file_, format_str, args); - } - - template <typename... Args> - inline void print(string_view format_str, const Args & ... args) { - vprint(format_str, make_format_args(args...)); - } -}; - -// A file. Closed file is represented by a file object with descriptor -1. -// Methods that are not declared with FMT_NOEXCEPT may throw -// fmt::system_error in case of failure. Note that some errors such as -// closing the file multiple times will cause a crash on Windows rather -// than an exception. You can get standard behavior by overriding the -// invalid parameter handler with _set_invalid_parameter_handler. -class file { - private: - int fd_; // File descriptor. - - // Constructs a file object with a given descriptor. - explicit file(int fd) : fd_(fd) {} - - public: - // Possible values for the oflag argument to the constructor. - enum { - RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only. - WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only. - RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing. - }; - - // Constructs a file object which doesn't represent any file. - file() FMT_NOEXCEPT : fd_(-1) {} - - // Opens a file and constructs a file object representing this file. - FMT_API file(cstring_view path, int oflag); - -#if !FMT_USE_RVALUE_REFERENCES - // Emulate a move constructor and a move assignment operator if rvalue - // references are not supported. - - private: - // A proxy object to emulate a move constructor. - // It is private to make it impossible call operator Proxy directly. - struct Proxy { - int fd; - }; - - public: - // A "move constructor" for moving from a temporary. - file(Proxy p) FMT_NOEXCEPT : fd_(p.fd) {} - - // A "move constructor" for moving from an lvalue. - file(file &other) FMT_NOEXCEPT : fd_(other.fd_) { - other.fd_ = -1; - } - - // A "move assignment operator" for moving from a temporary. - file &operator=(Proxy p) { - close(); - fd_ = p.fd; - return *this; - } - - // A "move assignment operator" for moving from an lvalue. - file &operator=(file &other) { - close(); - fd_ = other.fd_; - other.fd_ = -1; - return *this; - } - - // Returns a proxy object for moving from a temporary: - // file f = file(...); - operator Proxy() FMT_NOEXCEPT { - Proxy p = {fd_}; - fd_ = -1; - return p; - } - -#else - private: - FMT_DISALLOW_COPY_AND_ASSIGN(file); - - public: - file(file &&other) FMT_NOEXCEPT : fd_(other.fd_) { - other.fd_ = -1; - } - - file& operator=(file &&other) { - close(); - fd_ = other.fd_; - other.fd_ = -1; - return *this; - } -#endif - - // Destroys the object closing the file it represents if any. - FMT_API ~file() FMT_DTOR_NOEXCEPT; - - // Returns the file descriptor. - int descriptor() const FMT_NOEXCEPT { return fd_; } - - // Closes the file. - FMT_API void close(); - - // Returns the file size. The size has signed type for consistency with - // stat::st_size. - FMT_API long long size() const; - - // Attempts to read count bytes from the file into the specified buffer. - FMT_API std::size_t read(void *buffer, std::size_t count); - - // Attempts to write count bytes from the specified buffer to the file. - FMT_API std::size_t write(const void *buffer, std::size_t count); - - // Duplicates a file descriptor with the dup function and returns - // the duplicate as a file object. - FMT_API static file dup(int fd); - - // Makes fd be the copy of this file descriptor, closing fd first if - // necessary. - FMT_API void dup2(int fd); - - // Makes fd be the copy of this file descriptor, closing fd first if - // necessary. - FMT_API void dup2(int fd, error_code &ec) FMT_NOEXCEPT; - - // Creates a pipe setting up read_end and write_end file objects for reading - // and writing respectively. - FMT_API static void pipe(file &read_end, file &write_end); - - // Creates a buffered_file object associated with this file and detaches - // this file object from the file. - FMT_API buffered_file fdopen(const char *mode); -}; - -// Returns the memory page size. -long getpagesize(); - -#if (defined(LC_NUMERIC_MASK) || defined(_MSC_VER)) && \ - !defined(__ANDROID__) && !defined(__CYGWIN__) && !defined(__OpenBSD__) -# define FMT_LOCALE -#endif - -#ifdef FMT_LOCALE -// A "C" numeric locale. -class Locale { - private: -# ifdef _MSC_VER - typedef _locale_t locale_t; - - enum { LC_NUMERIC_MASK = LC_NUMERIC }; - - static locale_t newlocale(int category_mask, const char *locale, locale_t) { - return _create_locale(category_mask, locale); - } - - static void freelocale(locale_t locale) { - _free_locale(locale); - } - - static double strtod_l(const char *nptr, char **endptr, _locale_t locale) { - return _strtod_l(nptr, endptr, locale); - } -# endif - - locale_t locale_; - - FMT_DISALLOW_COPY_AND_ASSIGN(Locale); - - public: - typedef locale_t Type; - - Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", FMT_NULL)) { - if (!locale_) - FMT_THROW(system_error(errno, "cannot create locale")); - } - ~Locale() { freelocale(locale_); } - - Type get() const { return locale_; } - - // Converts string to floating-point number and advances str past the end - // of the parsed input. - double strtod(const char *&str) const { - char *end = FMT_NULL; - double result = strtod_l(str, &end, locale_); - str = end; - return result; - } -}; -#endif // FMT_LOCALE -FMT_END_NAMESPACE - -#if !FMT_USE_RVALUE_REFERENCES -namespace std { -// For compatibility with C++98. -inline fmt::buffered_file &move(fmt::buffered_file &f) { return f; } -inline fmt::file &move(fmt::file &f) { return f; } -} -#endif - -#endif // FMT_POSIX_H_
--- a/libfmt/include/fmt/printf.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,728 +0,0 @@ -// Formatting library for C++ -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#ifndef FMT_PRINTF_H_ -#define FMT_PRINTF_H_ - -#include <algorithm> // std::fill_n -#include <limits> // std::numeric_limits - -#include "ostream.h" - -FMT_BEGIN_NAMESPACE -namespace internal { - -// Checks if a value fits in int - used to avoid warnings about comparing -// signed and unsigned integers. -template <bool IsSigned> -struct int_checker { - template <typename T> - static bool fits_in_int(T value) { - unsigned max = std::numeric_limits<int>::max(); - return value <= max; - } - static bool fits_in_int(bool) { return true; } -}; - -template <> -struct int_checker<true> { - template <typename T> - static bool fits_in_int(T value) { - return value >= std::numeric_limits<int>::min() && - value <= std::numeric_limits<int>::max(); - } - static bool fits_in_int(int) { return true; } -}; - -class printf_precision_handler: public function<int> { - public: - template <typename T> - typename std::enable_if<std::is_integral<T>::value, int>::type - operator()(T value) { - if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value)) - FMT_THROW(format_error("number is too big")); - return static_cast<int>(value); - } - - template <typename T> - typename std::enable_if<!std::is_integral<T>::value, int>::type operator()(T) { - FMT_THROW(format_error("precision is not integer")); - return 0; - } -}; - -// An argument visitor that returns true iff arg is a zero integer. -class is_zero_int: public function<bool> { - public: - template <typename T> - typename std::enable_if<std::is_integral<T>::value, bool>::type - operator()(T value) { return value == 0; } - - template <typename T> - typename std::enable_if<!std::is_integral<T>::value, bool>::type - operator()(T) { return false; } -}; - -template <typename T> -struct make_unsigned_or_bool : std::make_unsigned<T> {}; - -template <> -struct make_unsigned_or_bool<bool> { - typedef bool type; -}; - -template <typename T, typename Context> -class arg_converter: public function<void> { - private: - typedef typename Context::char_type Char; - - basic_format_arg<Context> &arg_; - typename Context::char_type type_; - - public: - arg_converter(basic_format_arg<Context> &arg, Char type) - : arg_(arg), type_(type) {} - - void operator()(bool value) { - if (type_ != 's') - operator()<bool>(value); - } - - template <typename U> - typename std::enable_if<std::is_integral<U>::value>::type - operator()(U value) { - bool is_signed = type_ == 'd' || type_ == 'i'; - typedef typename std::conditional< - std::is_same<T, void>::value, U, T>::type TargetType; - if (const_check(sizeof(TargetType) <= sizeof(int))) { - // Extra casts are used to silence warnings. - if (is_signed) { - arg_ = internal::make_arg<Context>( - static_cast<int>(static_cast<TargetType>(value))); - } else { - typedef typename make_unsigned_or_bool<TargetType>::type Unsigned; - arg_ = internal::make_arg<Context>( - static_cast<unsigned>(static_cast<Unsigned>(value))); - } - } else { - if (is_signed) { - // glibc's printf doesn't sign extend arguments of smaller types: - // std::printf("%lld", -42); // prints "4294967254" - // but we don't have to do the same because it's a UB. - arg_ = internal::make_arg<Context>(static_cast<long long>(value)); - } else { - arg_ = internal::make_arg<Context>( - static_cast<typename make_unsigned_or_bool<U>::type>(value)); - } - } - } - - template <typename U> - typename std::enable_if<!std::is_integral<U>::value>::type operator()(U) { - // No coversion needed for non-integral types. - } -}; - -// Converts an integer argument to T for printf, if T is an integral type. -// If T is void, the argument is converted to corresponding signed or unsigned -// type depending on the type specifier: 'd' and 'i' - signed, other - -// unsigned). -template <typename T, typename Context, typename Char> -void convert_arg(basic_format_arg<Context> &arg, Char type) { - visit(arg_converter<T, Context>(arg, type), arg); -} - -// Converts an integer argument to char for printf. -template <typename Context> -class char_converter: public function<void> { - private: - basic_format_arg<Context> &arg_; - - FMT_DISALLOW_COPY_AND_ASSIGN(char_converter); - - public: - explicit char_converter(basic_format_arg<Context> &arg) : arg_(arg) {} - - template <typename T> - typename std::enable_if<std::is_integral<T>::value>::type - operator()(T value) { - typedef typename Context::char_type Char; - arg_ = internal::make_arg<Context>(static_cast<Char>(value)); - } - - template <typename T> - typename std::enable_if<!std::is_integral<T>::value>::type operator()(T) { - // No coversion needed for non-integral types. - } -}; - -// Checks if an argument is a valid printf width specifier and sets -// left alignment if it is negative. -template <typename Char> -class printf_width_handler: public function<unsigned> { - private: - typedef basic_format_specs<Char> format_specs; - - format_specs &spec_; - - FMT_DISALLOW_COPY_AND_ASSIGN(printf_width_handler); - - public: - explicit printf_width_handler(format_specs &spec) : spec_(spec) {} - - template <typename T> - typename std::enable_if<std::is_integral<T>::value, unsigned>::type - operator()(T value) { - typedef typename internal::int_traits<T>::main_type UnsignedType; - UnsignedType width = static_cast<UnsignedType>(value); - if (internal::is_negative(value)) { - spec_.align_ = ALIGN_LEFT; - width = 0 - width; - } - unsigned int_max = std::numeric_limits<int>::max(); - if (width > int_max) - FMT_THROW(format_error("number is too big")); - return static_cast<unsigned>(width); - } - - template <typename T> - typename std::enable_if<!std::is_integral<T>::value, unsigned>::type - operator()(T) { - FMT_THROW(format_error("width is not integer")); - return 0; - } -}; -} // namespace internal - -template <typename Range> -class printf_arg_formatter; - -template < - typename OutputIt, typename Char, - typename ArgFormatter = - printf_arg_formatter<back_insert_range<internal::basic_buffer<Char>>>> -class basic_printf_context; - -/** - \rst - The ``printf`` argument formatter. - \endrst - */ -template <typename Range> -class printf_arg_formatter: - public internal::function< - typename internal::arg_formatter_base<Range>::iterator>, - public internal::arg_formatter_base<Range> { - private: - typedef typename Range::value_type char_type; - typedef decltype(internal::declval<Range>().begin()) iterator; - typedef internal::arg_formatter_base<Range> base; - typedef basic_printf_context<iterator, char_type> context_type; - - context_type &context_; - - void write_null_pointer(char) { - this->spec().type_ = 0; - this->write("(nil)"); - } - - void write_null_pointer(wchar_t) { - this->spec().type_ = 0; - this->write(L"(nil)"); - } - - public: - typedef typename base::format_specs format_specs; - - /** - \rst - Constructs an argument formatter object. - *buffer* is a reference to the output buffer and *spec* contains format - specifier information for standard argument types. - \endrst - */ - printf_arg_formatter(internal::basic_buffer<char_type> &buffer, - format_specs &spec, context_type &ctx) - : base(back_insert_range<internal::basic_buffer<char_type>>(buffer), spec), - context_(ctx) {} - - template <typename T> - typename std::enable_if<std::is_integral<T>::value, iterator>::type - operator()(T value) { - // MSVC2013 fails to compile separate overloads for bool and char_type so - // use std::is_same instead. - if (std::is_same<T, bool>::value) { - format_specs &fmt_spec = this->spec(); - if (fmt_spec.type_ != 's') - return base::operator()(value ? 1 : 0); - fmt_spec.type_ = 0; - this->write(value != 0); - } else if (std::is_same<T, char_type>::value) { - format_specs &fmt_spec = this->spec(); - if (fmt_spec.type_ && fmt_spec.type_ != 'c') - return (*this)(static_cast<int>(value)); - fmt_spec.flags_ = 0; - fmt_spec.align_ = ALIGN_RIGHT; - return base::operator()(value); - } else { - return base::operator()(value); - } - return this->out(); - } - - template <typename T> - typename std::enable_if<std::is_floating_point<T>::value, iterator>::type - operator()(T value) { - return base::operator()(value); - } - - /** Formats a null-terminated C string. */ - iterator operator()(const char *value) { - if (value) - base::operator()(value); - else if (this->spec().type_ == 'p') - write_null_pointer(char_type()); - else - this->write("(null)"); - return this->out(); - } - - /** Formats a null-terminated wide C string. */ - iterator operator()(const wchar_t *value) { - if (value) - base::operator()(value); - else if (this->spec().type_ == 'p') - write_null_pointer(char_type()); - else - this->write(L"(null)"); - return this->out(); - } - - iterator operator()(basic_string_view<char_type> value) { - return base::operator()(value); - } - - iterator operator()(monostate value) { - return base::operator()(value); - } - - /** Formats a pointer. */ - iterator operator()(const void *value) { - if (value) - return base::operator()(value); - this->spec().type_ = 0; - write_null_pointer(char_type()); - return this->out(); - } - - /** Formats an argument of a custom (user-defined) type. */ - iterator operator()(typename basic_format_arg<context_type>::handle handle) { - handle.format(context_); - return this->out(); - } -}; - -template <typename T> -struct printf_formatter { - template <typename ParseContext> - auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { return ctx.begin(); } - - template <typename FormatContext> - auto format(const T &value, FormatContext &ctx) -> decltype(ctx.out()) { - internal::format_value(internal::get_container(ctx.out()), value); - return ctx.out(); - } -}; - -/** This template formats data and writes the output to a writer. */ -template <typename OutputIt, typename Char, typename ArgFormatter> -class basic_printf_context : - private internal::context_base< - OutputIt, basic_printf_context<OutputIt, Char, ArgFormatter>, Char> { - public: - /** The character type for the output. */ - typedef Char char_type; - - template <typename T> - struct formatter_type { typedef printf_formatter<T> type; }; - - private: - typedef internal::context_base<OutputIt, basic_printf_context, Char> base; - typedef typename base::format_arg format_arg; - typedef basic_format_specs<char_type> format_specs; - typedef internal::null_terminating_iterator<char_type> iterator; - - void parse_flags(format_specs &spec, iterator &it); - - // Returns the argument with specified index or, if arg_index is equal - // to the maximum unsigned value, the next argument. - format_arg get_arg( - iterator it, - unsigned arg_index = (std::numeric_limits<unsigned>::max)()); - - // Parses argument index, flags and width and returns the argument index. - unsigned parse_header(iterator &it, format_specs &spec); - - public: - /** - \rst - Constructs a ``printf_context`` object. References to the arguments and - the writer are stored in the context object so make sure they have - appropriate lifetimes. - \endrst - */ - basic_printf_context(OutputIt out, basic_string_view<char_type> format_str, - basic_format_args<basic_printf_context> args) - : base(out, format_str, args) {} - - using base::parse_context; - using base::out; - using base::advance_to; - - /** Formats stored arguments and writes the output to the range. */ - void format(); -}; - -template <typename OutputIt, typename Char, typename AF> -void basic_printf_context<OutputIt, Char, AF>::parse_flags( - format_specs &spec, iterator &it) { - for (;;) { - switch (*it++) { - case '-': - spec.align_ = ALIGN_LEFT; - break; - case '+': - spec.flags_ |= SIGN_FLAG | PLUS_FLAG; - break; - case '0': - spec.fill_ = '0'; - break; - case ' ': - spec.flags_ |= SIGN_FLAG; - break; - case '#': - spec.flags_ |= HASH_FLAG; - break; - default: - --it; - return; - } - } -} - -template <typename OutputIt, typename Char, typename AF> -typename basic_printf_context<OutputIt, Char, AF>::format_arg - basic_printf_context<OutputIt, Char, AF>::get_arg( - iterator it, unsigned arg_index) { - (void)it; - if (arg_index == std::numeric_limits<unsigned>::max()) - return this->do_get_arg(this->parse_context().next_arg_id()); - return base::get_arg(arg_index - 1); -} - -template <typename OutputIt, typename Char, typename AF> -unsigned basic_printf_context<OutputIt, Char, AF>::parse_header( - iterator &it, format_specs &spec) { - unsigned arg_index = std::numeric_limits<unsigned>::max(); - char_type c = *it; - if (c >= '0' && c <= '9') { - // Parse an argument index (if followed by '$') or a width possibly - // preceded with '0' flag(s). - internal::error_handler eh; - unsigned value = parse_nonnegative_int(it, eh); - if (*it == '$') { // value is an argument index - ++it; - arg_index = value; - } else { - if (c == '0') - spec.fill_ = '0'; - if (value != 0) { - // Nonzero value means that we parsed width and don't need to - // parse it or flags again, so return now. - spec.width_ = value; - return arg_index; - } - } - } - parse_flags(spec, it); - // Parse width. - if (*it >= '0' && *it <= '9') { - internal::error_handler eh; - spec.width_ = parse_nonnegative_int(it, eh); - } else if (*it == '*') { - ++it; - spec.width_ = - visit(internal::printf_width_handler<char_type>(spec), get_arg(it)); - } - return arg_index; -} - -template <typename OutputIt, typename Char, typename AF> -void basic_printf_context<OutputIt, Char, AF>::format() { - auto &buffer = internal::get_container(this->out()); - auto start = iterator(this->parse_context()); - auto it = start; - using internal::pointer_from; - while (*it) { - char_type c = *it++; - if (c != '%') continue; - if (*it == c) { - buffer.append(pointer_from(start), pointer_from(it)); - start = ++it; - continue; - } - buffer.append(pointer_from(start), pointer_from(it) - 1); - - format_specs spec; - spec.align_ = ALIGN_RIGHT; - - // Parse argument index, flags and width. - unsigned arg_index = parse_header(it, spec); - - // Parse precision. - if (*it == '.') { - ++it; - if ('0' <= *it && *it <= '9') { - internal::error_handler eh; - spec.precision_ = static_cast<int>(parse_nonnegative_int(it, eh)); - } else if (*it == '*') { - ++it; - spec.precision_ = - visit(internal::printf_precision_handler(), get_arg(it)); - } else { - spec.precision_ = 0; - } - } - - format_arg arg = get_arg(it, arg_index); - if (spec.flag(HASH_FLAG) && visit(internal::is_zero_int(), arg)) - spec.flags_ &= ~internal::to_unsigned<int>(HASH_FLAG); - if (spec.fill_ == '0') { - if (arg.is_arithmetic()) - spec.align_ = ALIGN_NUMERIC; - else - spec.fill_ = ' '; // Ignore '0' flag for non-numeric types. - } - - // Parse length and convert the argument to the required type. - using internal::convert_arg; - switch (*it++) { - case 'h': - if (*it == 'h') - convert_arg<signed char>(arg, *++it); - else - convert_arg<short>(arg, *it); - break; - case 'l': - if (*it == 'l') - convert_arg<long long>(arg, *++it); - else - convert_arg<long>(arg, *it); - break; - case 'j': - convert_arg<intmax_t>(arg, *it); - break; - case 'z': - convert_arg<std::size_t>(arg, *it); - break; - case 't': - convert_arg<std::ptrdiff_t>(arg, *it); - break; - case 'L': - // printf produces garbage when 'L' is omitted for long double, no - // need to do the same. - break; - default: - --it; - convert_arg<void>(arg, *it); - } - - // Parse type. - if (!*it) - FMT_THROW(format_error("invalid format string")); - spec.type_ = static_cast<char>(*it++); - if (arg.is_integral()) { - // Normalize type. - switch (spec.type_) { - case 'i': case 'u': - spec.type_ = 'd'; - break; - case 'c': - // TODO: handle wchar_t better? - visit(internal::char_converter<basic_printf_context>(arg), arg); - break; - } - } - - start = it; - - // Format argument. - visit(AF(buffer, spec, *this), arg); - } - buffer.append(pointer_from(start), pointer_from(it)); -} - -template <typename Char, typename Context> -void printf(internal::basic_buffer<Char> &buf, basic_string_view<Char> format, - basic_format_args<Context> args) { - Context(std::back_inserter(buf), format, args).format(); -} - -template <typename Buffer> -struct printf_context { - typedef basic_printf_context< - std::back_insert_iterator<Buffer>, typename Buffer::value_type> type; -}; - -template <typename ...Args> -inline format_arg_store<printf_context<internal::buffer>::type, Args...> - make_printf_args(const Args & ... args) { - return format_arg_store<printf_context<internal::buffer>::type, Args...>( - args...); -} -typedef basic_format_args<printf_context<internal::buffer>::type> printf_args; -typedef basic_format_args<printf_context<internal::wbuffer>::type> wprintf_args; - -inline std::string vsprintf(string_view format, printf_args args) { - memory_buffer buffer; - printf(buffer, format, args); - return to_string(buffer); -} - -/** - \rst - Formats arguments and returns the result as a string. - - **Example**:: - - std::string message = fmt::sprintf("The answer is %d", 42); - \endrst -*/ -template <typename... Args> -inline std::string sprintf(string_view format_str, const Args & ... args) { - return vsprintf(format_str, - make_format_args<typename printf_context<internal::buffer>::type>(args...)); -} - -inline std::wstring vsprintf(wstring_view format, wprintf_args args) { - wmemory_buffer buffer; - printf(buffer, format, args); - return to_string(buffer); -} - -template <typename... Args> -inline std::wstring sprintf(wstring_view format_str, const Args & ... args) { - return vsprintf(format_str, - make_format_args<typename printf_context<internal::wbuffer>::type>(args...)); -} - -template <typename Char> -inline int vfprintf(std::FILE *f, basic_string_view<Char> format, - basic_format_args<typename printf_context< - internal::basic_buffer<Char>>::type> args) { - basic_memory_buffer<Char> buffer; - printf(buffer, format, args); - std::size_t size = buffer.size(); - return std::fwrite( - buffer.data(), sizeof(Char), size, f) < size ? -1 : static_cast<int>(size); -} - -/** - \rst - Prints formatted data to the file *f*. - - **Example**:: - - fmt::fprintf(stderr, "Don't %s!", "panic"); - \endrst - */ -template <typename... Args> -inline int fprintf(std::FILE *f, string_view format_str, const Args & ... args) { - auto vargs = make_format_args< - typename printf_context<internal::buffer>::type>(args...); - return vfprintf<char>(f, format_str, vargs); -} - -template <typename... Args> -inline int fprintf(std::FILE *f, wstring_view format_str, - const Args & ... args) { - return vfprintf(f, format_str, - make_format_args<typename printf_context<internal::wbuffer>::type>(args...)); -} - -inline int vprintf(string_view format, printf_args args) { - return vfprintf(stdout, format, args); -} - -inline int vprintf(wstring_view format, wprintf_args args) { - return vfprintf(stdout, format, args); -} - -/** - \rst - Prints formatted data to ``stdout``. - - **Example**:: - - fmt::printf("Elapsed time: %.2f seconds", 1.23); - \endrst - */ -template <typename... Args> -inline int printf(string_view format_str, const Args & ... args) { - return vprintf(format_str, - make_format_args<typename printf_context<internal::buffer>::type>(args...)); -} - -template <typename... Args> -inline int printf(wstring_view format_str, const Args & ... args) { - return vprintf(format_str, - make_format_args<typename printf_context<internal::wbuffer>::type>(args...)); -} - -inline int vfprintf(std::ostream &os, string_view format_str, - printf_args args) { - memory_buffer buffer; - printf(buffer, format_str, args); - internal::write(os, buffer); - return static_cast<int>(buffer.size()); -} - -inline int vfprintf(std::wostream &os, wstring_view format_str, - wprintf_args args) { - wmemory_buffer buffer; - printf(buffer, format_str, args); - internal::write(os, buffer); - return static_cast<int>(buffer.size()); -} - -/** - \rst - Prints formatted data to the stream *os*. - - **Example**:: - - fmt::fprintf(cerr, "Don't %s!", "panic"); - \endrst - */ -template <typename... Args> -inline int fprintf(std::ostream &os, string_view format_str, - const Args & ... args) { - auto vargs = make_format_args< - typename printf_context<internal::buffer>::type>(args...); - return vfprintf(os, format_str, vargs); -} - -template <typename... Args> -inline int fprintf(std::wostream &os, wstring_view format_str, - const Args & ... args) { - auto vargs = make_format_args< - typename printf_context<internal::buffer>::type>(args...); - return vfprintf(os, format_str, vargs); -} -FMT_END_NAMESPACE - -#endif // FMT_PRINTF_H_
--- a/libfmt/include/fmt/ranges.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,305 +0,0 @@ -// Formatting library for C++ - the core API -// -// Copyright (c) 2012 - present, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. -// -// Copyright (c) 2018 - present, Remotion (Igor Schulz) -// All Rights Reserved -// {fmt} support for ranges, containers and types tuple interface. - -#ifndef FMT_RANGES_H_ -#define FMT_RANGES_H_ - -#include "format.h" -#include <type_traits> - -// output only up to N items from the range. -#ifndef FMT_RANGE_OUTPUT_LENGTH_LIMIT -# define FMT_RANGE_OUTPUT_LENGTH_LIMIT 256 -#endif - -FMT_BEGIN_NAMESPACE - -template <typename Char> -struct formatting_base { - template <typename ParseContext> - FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { - return ctx.begin(); - } -}; - -template <typename Char, typename Enable = void> -struct formatting_range : formatting_base<Char> { - static FMT_CONSTEXPR_DECL const std::size_t range_length_limit = - FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the range. - Char prefix; - Char delimiter; - Char postfix; - formatting_range() : prefix('{'), delimiter(','), postfix('}') {} - static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true; - static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false; -}; - -template <typename Char, typename Enable = void> -struct formatting_tuple : formatting_base<Char> { - Char prefix; - Char delimiter; - Char postfix; - formatting_tuple() : prefix('('), delimiter(','), postfix(')') {} - static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true; - static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false; -}; - -namespace internal { - -template <typename RangeT, typename OutputIterator> -void copy(const RangeT &range, OutputIterator out) { - for (auto it = range.begin(), end = range.end(); it != end; ++it) - *out++ = *it; -} - -template <typename OutputIterator> -void copy(const char *str, OutputIterator out) { - const char *p_curr = str; - while (*p_curr) { - *out++ = *p_curr++; - } -} - -template <typename OutputIterator> -void copy(char ch, OutputIterator out) { - *out++ = ch; -} - -/// Return true value if T has std::string interface, like std::string_view. -template <typename T> -class is_like_std_string { - template <typename U> - static auto check(U *p) -> - decltype(p->find('a'), p->length(), p->data(), int()); - template <typename> - static void check(...); - - public: - static FMT_CONSTEXPR_DECL const bool value = - !std::is_void<decltype(check<T>(FMT_NULL))>::value; -}; - -template <typename... Ts> -struct conditional_helper {}; - -template <typename T, typename _ = void> -struct is_range_ : std::false_type {}; - -#if !FMT_MSC_VER || FMT_MSC_VER > 1800 -template <typename T> -struct is_range_<T, typename std::conditional< - false, - conditional_helper<decltype(internal::declval<T>().begin()), - decltype(internal::declval<T>().end())>, - void>::type> : std::true_type {}; -#endif - -/// tuple_size and tuple_element check. -template <typename T> -class is_tuple_like_ { - template <typename U> - static auto check(U *p) -> - decltype(std::tuple_size<U>::value, - internal::declval<typename std::tuple_element<0, U>::type>(), int()); - template <typename> - static void check(...); - - public: - static FMT_CONSTEXPR_DECL const bool value = - !std::is_void<decltype(check<T>(FMT_NULL))>::value; -}; - -// Check for integer_sequence -#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900 -template <typename T, T... N> -using integer_sequence = std::integer_sequence<T, N...>; -template <std::size_t... N> -using index_sequence = std::index_sequence<N...>; -template <std::size_t N> -using make_index_sequence = std::make_index_sequence<N>; -#else -template <typename T, T... N> -struct integer_sequence { - typedef T value_type; - - static FMT_CONSTEXPR std::size_t size() { - return sizeof...(N); - } -}; - -template <std::size_t... N> -using index_sequence = integer_sequence<std::size_t, N...>; - -template <typename T, std::size_t N, T... Ns> -struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {}; -template <typename T, T... Ns> -struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {}; - -template <std::size_t N> -using make_index_sequence = make_integer_sequence<std::size_t, N>; -#endif - -template <class Tuple, class F, size_t... Is> -void for_each(index_sequence<Is...>, Tuple &&tup, F &&f) FMT_NOEXCEPT { - using std::get; - // using free function get<I>(T) now. - const int _[] = {0, ((void)f(get<Is>(tup)), 0)...}; - (void)_; // blocks warnings -} - -template <class T> -FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> -get_indexes(T const &) { return {}; } - -template <class Tuple, class F> -void for_each(Tuple &&tup, F &&f) { - const auto indexes = get_indexes(tup); - for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f)); -} - -template<typename Arg> -FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&, - typename std::enable_if< - !is_like_std_string<typename std::decay<Arg>::type>::value>::type* = nullptr) { - return add_space ? " {}" : "{}"; -} - -template<typename Arg> -FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&, - typename std::enable_if< - is_like_std_string<typename std::decay<Arg>::type>::value>::type* = nullptr) { - return add_space ? " \"{}\"" : "\"{}\""; -} - -FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char*) { - return add_space ? " \"{}\"" : "\"{}\""; -} -FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t*) { - return add_space ? L" \"{}\"" : L"\"{}\""; -} - -FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char) { - return add_space ? " '{}'" : "'{}'"; -} -FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t) { - return add_space ? L" '{}'" : L"'{}'"; -} - -} // namespace internal - -template <typename T> -struct is_tuple_like { - static FMT_CONSTEXPR_DECL const bool value = - internal::is_tuple_like_<T>::value && !internal::is_range_<T>::value; -}; - -template <typename TupleT, typename Char> -struct formatter<TupleT, Char, - typename std::enable_if<fmt::is_tuple_like<TupleT>::value>::type> { -private: - // C++11 generic lambda for format() - template <typename FormatContext> - struct format_each { - template <typename T> - void operator()(const T& v) { - if (i > 0) { - if (formatting.add_prepostfix_space) { - *out++ = ' '; - } - internal::copy(formatting.delimiter, out); - } - format_to(out, - internal::format_str_quoted( - (formatting.add_delimiter_spaces && i > 0), v), - v); - ++i; - } - - formatting_tuple<Char>& formatting; - std::size_t& i; - typename std::add_lvalue_reference<decltype(std::declval<FormatContext>().out())>::type out; - }; - -public: - formatting_tuple<Char> formatting; - - template <typename ParseContext> - FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { - return formatting.parse(ctx); - } - - template <typename FormatContext = format_context> - auto format(const TupleT &values, FormatContext &ctx) -> decltype(ctx.out()) { - auto out = ctx.out(); - std::size_t i = 0; - internal::copy(formatting.prefix, out); - - internal::for_each(values, format_each<FormatContext>{formatting, i, out}); - if (formatting.add_prepostfix_space) { - *out++ = ' '; - } - internal::copy(formatting.postfix, out); - - return ctx.out(); - } -}; - -template <typename T> -struct is_range { - static FMT_CONSTEXPR_DECL const bool value = - internal::is_range_<T>::value && !internal::is_like_std_string<T>::value; -}; - -template <typename RangeT, typename Char> -struct formatter<RangeT, Char, - typename std::enable_if<fmt::is_range<RangeT>::value>::type> { - - formatting_range<Char> formatting; - - template <typename ParseContext> - FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { - return formatting.parse(ctx); - } - - template <typename FormatContext> - typename FormatContext::iterator format( - const RangeT &values, FormatContext &ctx) { - auto out = ctx.out(); - internal::copy(formatting.prefix, out); - std::size_t i = 0; - for (auto it = values.begin(), end = values.end(); it != end; ++it) { - if (i > 0) { - if (formatting.add_prepostfix_space) { - *out++ = ' '; - } - internal::copy(formatting.delimiter, out); - } - format_to(out, - internal::format_str_quoted( - (formatting.add_delimiter_spaces && i > 0), *it), - *it); - if (++i > formatting.range_length_limit) { - format_to(out, " ... <other elements>"); - break; - } - } - if (formatting.add_prepostfix_space) { - *out++ = ' '; - } - internal::copy(formatting.postfix, out); - return ctx.out(); - } -}; - -FMT_END_NAMESPACE - -#endif // FMT_RANGES_H_ -
--- a/libfmt/include/fmt/time.h Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,152 +0,0 @@ -// Formatting library for C++ - time formatting -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#ifndef FMT_TIME_H_ -#define FMT_TIME_H_ - -#include "format.h" -#include <ctime> - -FMT_BEGIN_NAMESPACE - -namespace internal{ -inline null<> localtime_r(...) { return null<>(); } -inline null<> localtime_s(...) { return null<>(); } -inline null<> gmtime_r(...) { return null<>(); } -inline null<> gmtime_s(...) { return null<>(); } -} - -// Thread-safe replacement for std::localtime -inline std::tm localtime(std::time_t time) { - struct dispatcher { - std::time_t time_; - std::tm tm_; - - dispatcher(std::time_t t): time_(t) {} - - bool run() { - using namespace fmt::internal; - return handle(localtime_r(&time_, &tm_)); - } - - bool handle(std::tm *tm) { return tm != FMT_NULL; } - - bool handle(internal::null<>) { - using namespace fmt::internal; - return fallback(localtime_s(&tm_, &time_)); - } - - bool fallback(int res) { return res == 0; } - - bool fallback(internal::null<>) { - using namespace fmt::internal; - std::tm *tm = std::localtime(&time_); - if (tm) tm_ = *tm; - return tm != FMT_NULL; - } - }; - dispatcher lt(time); - if (lt.run()) - return lt.tm_; - // Too big time values may be unsupported. - FMT_THROW(format_error("time_t value out of range")); -} - -// Thread-safe replacement for std::gmtime -inline std::tm gmtime(std::time_t time) { - struct dispatcher { - std::time_t time_; - std::tm tm_; - - dispatcher(std::time_t t): time_(t) {} - - bool run() { - using namespace fmt::internal; - return handle(gmtime_r(&time_, &tm_)); - } - - bool handle(std::tm *tm) { return tm != FMT_NULL; } - - bool handle(internal::null<>) { - using namespace fmt::internal; - return fallback(gmtime_s(&tm_, &time_)); - } - - bool fallback(int res) { return res == 0; } - - bool fallback(internal::null<>) { - std::tm *tm = std::gmtime(&time_); - if (tm) tm_ = *tm; - return tm != FMT_NULL; - } - }; - dispatcher gt(time); - if (gt.run()) - return gt.tm_; - // Too big time values may be unsupported. - FMT_THROW(format_error("time_t value out of range")); -} - -namespace internal { -inline std::size_t strftime(char *str, std::size_t count, const char *format, - const std::tm *time) { - return std::strftime(str, count, format, time); -} - -inline std::size_t strftime(wchar_t *str, std::size_t count, - const wchar_t *format, const std::tm *time) { - return std::wcsftime(str, count, format, time); -} -} - -template <typename Char> -struct formatter<std::tm, Char> { - template <typename ParseContext> - auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { - auto it = internal::null_terminating_iterator<Char>(ctx); - if (*it == ':') - ++it; - auto end = it; - while (*end && *end != '}') - ++end; - tm_format.reserve(end - it + 1); - using internal::pointer_from; - tm_format.append(pointer_from(it), pointer_from(end)); - tm_format.push_back('\0'); - return pointer_from(end); - } - - template <typename FormatContext> - auto format(const std::tm &tm, FormatContext &ctx) -> decltype(ctx.out()) { - internal::basic_buffer<Char> &buf = internal::get_container(ctx.out()); - std::size_t start = buf.size(); - for (;;) { - std::size_t size = buf.capacity() - start; - std::size_t count = - internal::strftime(&buf[start], size, &tm_format[0], &tm); - if (count != 0) { - buf.resize(start + count); - break; - } - if (size >= tm_format.size() * 256) { - // If the buffer is 256 times larger than the format string, assume - // that `strftime` gives an empty result. There doesn't seem to be a - // better way to distinguish the two cases: - // https://github.com/fmtlib/fmt/issues/367 - break; - } - const std::size_t MIN_GROWTH = 10; - buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH)); - } - return ctx.out(); - } - - basic_memory_buffer<Char> tm_format; -}; -FMT_END_NAMESPACE - -#endif // FMT_TIME_H_
--- a/libfmt/src/format.cc Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,52 +0,0 @@ -// Formatting library for C++ -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -#include "fmt/format-inl.h" - -FMT_BEGIN_NAMESPACE -namespace internal { -// Force linking of inline functions into the library. -std::string (*vformat_ref)(string_view, format_args) = vformat; -std::wstring (*vformat_wref)(wstring_view, wformat_args) = vformat; -} - -template struct internal::basic_data<void>; - -// Explicit instantiations for char. - -template FMT_API char internal::thousands_sep(locale_provider *lp); - -template void basic_fixed_buffer<char>::grow(std::size_t); - -template void internal::arg_map<format_context>::init( - const basic_format_args<format_context> &args); - -template FMT_API int internal::char_traits<char>::format_float( - char *buffer, std::size_t size, const char *format, int precision, - double value); - -template FMT_API int internal::char_traits<char>::format_float( - char *buffer, std::size_t size, const char *format, int precision, - long double value); - -// Explicit instantiations for wchar_t. - -template FMT_API wchar_t internal::thousands_sep(locale_provider *lp); - -template void basic_fixed_buffer<wchar_t>::grow(std::size_t); - -template void internal::arg_map<wformat_context>::init( - const basic_format_args<wformat_context> &args); - -template FMT_API int internal::char_traits<wchar_t>::format_float( - wchar_t *buffer, std::size_t size, const wchar_t *format, - int precision, double value); - -template FMT_API int internal::char_traits<wchar_t>::format_float( - wchar_t *buffer, std::size_t size, const wchar_t *format, - int precision, long double value); -FMT_END_NAMESPACE
--- a/libfmt/src/posix.cc Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,244 +0,0 @@ -// A C++ interface to POSIX functions. -// -// Copyright (c) 2012 - 2016, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. - -// Disable bogus MSVC warnings. -#if !defined(_CRT_SECURE_NO_WARNINGS) && defined(_MSC_VER) -# define _CRT_SECURE_NO_WARNINGS -#endif - -#include "fmt/posix.h" - -#include <limits.h> -#include <sys/types.h> -#include <sys/stat.h> - -#ifndef _WIN32 -# include <unistd.h> -#else -# ifndef WIN32_LEAN_AND_MEAN -# define WIN32_LEAN_AND_MEAN -# endif -# include <windows.h> -# include <io.h> - -# define O_CREAT _O_CREAT -# define O_TRUNC _O_TRUNC - -# ifndef S_IRUSR -# define S_IRUSR _S_IREAD -# endif - -# ifndef S_IWUSR -# define S_IWUSR _S_IWRITE -# endif - -# ifdef __MINGW32__ -# define _SH_DENYNO 0x40 -# endif - -#endif // _WIN32 - -#ifdef fileno -# undef fileno -#endif - -namespace { -#ifdef _WIN32 -// Return type of read and write functions. -typedef int RWResult; - -// On Windows the count argument to read and write is unsigned, so convert -// it from size_t preventing integer overflow. -inline unsigned convert_rwcount(std::size_t count) { - return count <= UINT_MAX ? static_cast<unsigned>(count) : UINT_MAX; -} -#else -// Return type of read and write functions. -typedef ssize_t RWResult; - -inline std::size_t convert_rwcount(std::size_t count) { return count; } -#endif -} - -FMT_BEGIN_NAMESPACE - -buffered_file::~buffered_file() FMT_NOEXCEPT { - if (file_ && FMT_SYSTEM(fclose(file_)) != 0) - report_system_error(errno, "cannot close file"); -} - -buffered_file::buffered_file(cstring_view filename, cstring_view mode) { - FMT_RETRY_VAL(file_, - FMT_SYSTEM(fopen(filename.c_str(), mode.c_str())), FMT_NULL); - if (!file_) - FMT_THROW(system_error(errno, "cannot open file {}", filename.c_str())); -} - -void buffered_file::close() { - if (!file_) - return; - int result = FMT_SYSTEM(fclose(file_)); - file_ = FMT_NULL; - if (result != 0) - FMT_THROW(system_error(errno, "cannot close file")); -} - -// A macro used to prevent expansion of fileno on broken versions of MinGW. -#define FMT_ARGS - -int buffered_file::fileno() const { - int fd = FMT_POSIX_CALL(fileno FMT_ARGS(file_)); - if (fd == -1) - FMT_THROW(system_error(errno, "cannot get file descriptor")); - return fd; -} - -file::file(cstring_view path, int oflag) { - int mode = S_IRUSR | S_IWUSR; -#if defined(_WIN32) && !defined(__MINGW32__) - fd_ = -1; - FMT_POSIX_CALL(sopen_s(&fd_, path.c_str(), oflag, _SH_DENYNO, mode)); -#else - FMT_RETRY(fd_, FMT_POSIX_CALL(open(path.c_str(), oflag, mode))); -#endif - if (fd_ == -1) - FMT_THROW(system_error(errno, "cannot open file {}", path.c_str())); -} - -file::~file() FMT_NOEXCEPT { - // Don't retry close in case of EINTR! - // See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html - if (fd_ != -1 && FMT_POSIX_CALL(close(fd_)) != 0) - report_system_error(errno, "cannot close file"); -} - -void file::close() { - if (fd_ == -1) - return; - // Don't retry close in case of EINTR! - // See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html - int result = FMT_POSIX_CALL(close(fd_)); - fd_ = -1; - if (result != 0) - FMT_THROW(system_error(errno, "cannot close file")); -} - -long long file::size() const { -#ifdef _WIN32 - // Use GetFileSize instead of GetFileSizeEx for the case when _WIN32_WINNT - // is less than 0x0500 as is the case with some default MinGW builds. - // Both functions support large file sizes. - DWORD size_upper = 0; - HANDLE handle = reinterpret_cast<HANDLE>(_get_osfhandle(fd_)); - DWORD size_lower = FMT_SYSTEM(GetFileSize(handle, &size_upper)); - if (size_lower == INVALID_FILE_SIZE) { - DWORD error = GetLastError(); - if (error != NO_ERROR) - FMT_THROW(windows_error(GetLastError(), "cannot get file size")); - } - unsigned long long long_size = size_upper; - return (long_size << sizeof(DWORD) * CHAR_BIT) | size_lower; -#else - typedef struct stat Stat; - Stat file_stat = Stat(); - if (FMT_POSIX_CALL(fstat(fd_, &file_stat)) == -1) - FMT_THROW(system_error(errno, "cannot get file attributes")); - static_assert(sizeof(long long) >= sizeof(file_stat.st_size), - "return type of file::size is not large enough"); - return file_stat.st_size; -#endif -} - -std::size_t file::read(void *buffer, std::size_t count) { - RWResult result = 0; - FMT_RETRY(result, FMT_POSIX_CALL(read(fd_, buffer, convert_rwcount(count)))); - if (result < 0) - FMT_THROW(system_error(errno, "cannot read from file")); - return internal::to_unsigned(result); -} - -std::size_t file::write(const void *buffer, std::size_t count) { - RWResult result = 0; - FMT_RETRY(result, FMT_POSIX_CALL(write(fd_, buffer, convert_rwcount(count)))); - if (result < 0) - FMT_THROW(system_error(errno, "cannot write to file")); - return internal::to_unsigned(result); -} - -file file::dup(int fd) { - // Don't retry as dup doesn't return EINTR. - // http://pubs.opengroup.org/onlinepubs/009695399/functions/dup.html - int new_fd = FMT_POSIX_CALL(dup(fd)); - if (new_fd == -1) - FMT_THROW(system_error(errno, "cannot duplicate file descriptor {}", fd)); - return file(new_fd); -} - -void file::dup2(int fd) { - int result = 0; - FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd))); - if (result == -1) { - FMT_THROW(system_error(errno, - "cannot duplicate file descriptor {} to {}", fd_, fd)); - } -} - -void file::dup2(int fd, error_code &ec) FMT_NOEXCEPT { - int result = 0; - FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd))); - if (result == -1) - ec = error_code(errno); -} - -void file::pipe(file &read_end, file &write_end) { - // Close the descriptors first to make sure that assignments don't throw - // and there are no leaks. - read_end.close(); - write_end.close(); - int fds[2] = {}; -#ifdef _WIN32 - // Make the default pipe capacity same as on Linux 2.6.11+. - enum { DEFAULT_CAPACITY = 65536 }; - int result = FMT_POSIX_CALL(pipe(fds, DEFAULT_CAPACITY, _O_BINARY)); -#else - // Don't retry as the pipe function doesn't return EINTR. - // http://pubs.opengroup.org/onlinepubs/009696799/functions/pipe.html - int result = FMT_POSIX_CALL(pipe(fds)); -#endif - if (result != 0) - FMT_THROW(system_error(errno, "cannot create pipe")); - // The following assignments don't throw because read_fd and write_fd - // are closed. - read_end = file(fds[0]); - write_end = file(fds[1]); -} - -buffered_file file::fdopen(const char *mode) { - // Don't retry as fdopen doesn't return EINTR. - FILE *f = FMT_POSIX_CALL(fdopen(fd_, mode)); - if (!f) - FMT_THROW(system_error(errno, - "cannot associate stream with file descriptor")); - buffered_file bf(f); - fd_ = -1; - return bf; -} - -long getpagesize() { -#ifdef _WIN32 - SYSTEM_INFO si; - GetSystemInfo(&si); - return si.dwPageSize; -#else - long size = FMT_POSIX_CALL(sysconf(_SC_PAGESIZE)); - if (size < 0) - FMT_THROW(system_error(errno, "cannot get memory page size")); - return size; -#endif -} -FMT_END_NAMESPACE -
--- a/libfmt/support/cmake/cxx14.cmake Sat Oct 02 08:45:57 2021 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,97 +0,0 @@ -# C++14 feature support detection - -include(CheckCXXSourceCompiles) -include(CheckCXXCompilerFlag) - -if (NOT CMAKE_CXX_STANDARD) - set(CMAKE_CXX_STANDARD 11) -endif() -message(STATUS "CXX_STANDARD: ${CMAKE_CXX_STANDARD}") - -if (CMAKE_CXX_STANDARD EQUAL 20) - check_cxx_compiler_flag(-std=c++20 has_std_20_flag) - check_cxx_compiler_flag(-std=c++2a has_std_2a_flag) - - if (has_std_20_flag) - set(CXX_STANDARD_FLAG -std=c++20) - elseif (has_std_2a_flag) - set(CXX_STANDARD_FLAG -std=c++2a) - endif () -elseif (CMAKE_CXX_STANDARD EQUAL 17) - check_cxx_compiler_flag(-std=c++17 has_std_17_flag) - check_cxx_compiler_flag(-std=c++1z has_std_1z_flag) - - if (has_std_17_flag) - set(CXX_STANDARD_FLAG -std=c++17) - elseif (has_std_1z_flag) - set(CXX_STANDARD_FLAG -std=c++1z) - endif () -elseif (CMAKE_CXX_STANDARD EQUAL 14) - check_cxx_compiler_flag(-std=c++14 has_std_14_flag) - check_cxx_compiler_flag(-std=c++1y has_std_1y_flag) - - if (has_std_14_flag) - set(CXX_STANDARD_FLAG -std=c++14) - elseif (has_std_1y_flag) - set(CXX_STANDARD_FLAG -std=c++1y) - endif () -elseif (CMAKE_CXX_STANDARD EQUAL 11) - check_cxx_compiler_flag(-std=c++11 has_std_11_flag) - check_cxx_compiler_flag(-std=c++0x has_std_0x_flag) - - if (has_std_11_flag) - set(CXX_STANDARD_FLAG -std=c++11) - elseif (has_std_0x_flag) - set(CXX_STANDARD_FLAG -std=c++0x) - endif () -endif () - -set(CMAKE_REQUIRED_FLAGS ${CXX_STANDARD_FLAG}) - -# Check if variadic templates are working and not affected by GCC bug 39653: -# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39653 -check_cxx_source_compiles(" - template <class T, class ...Types> - struct S { typedef typename S<Types...>::type type; }; - int main() {}" SUPPORTS_VARIADIC_TEMPLATES) -if (NOT SUPPORTS_VARIADIC_TEMPLATES) - set (SUPPORTS_VARIADIC_TEMPLATES OFF) -endif () - -# Check if initializer lists are supported. -check_cxx_source_compiles(" - #include <initializer_list> - int main() {}" SUPPORTS_INITIALIZER_LIST) -if (NOT SUPPORTS_INITIALIZER_LIST) - set (SUPPORTS_INITIALIZER_LIST OFF) -endif () - -# Check if enum bases are available -check_cxx_source_compiles(" - enum C : char {A}; - int main() {}" - SUPPORTS_ENUM_BASE) -if (NOT SUPPORTS_ENUM_BASE) - set (SUPPORTS_ENUM_BASE OFF) -endif () - -# Check if type traits are available -check_cxx_source_compiles(" - #include <type_traits> - class C { void operator=(const C&); }; - int main() { static_assert(!std::is_copy_assignable<C>::value, \"\"); }" - SUPPORTS_TYPE_TRAITS) -if (NOT SUPPORTS_TYPE_TRAITS) - set (SUPPORTS_TYPE_TRAITS OFF) -endif () - -# Check if user-defined literals are available -check_cxx_source_compiles(" - void operator\"\" _udl(long double); - int main() {}" - SUPPORTS_USER_DEFINED_LITERALS) -if (NOT SUPPORTS_USER_DEFINED_LITERALS) - set (SUPPORTS_USER_DEFINED_LITERALS OFF) -endif () - -set(CMAKE_REQUIRED_FLAGS )