# HG changeset patch # User David Demelier # Date 1633157217 -7200 # Node ID 376c396887e0683316b2fb32a7b22837a341ccbd # Parent 48f9b1d447c90eabd8c88828d8475d451a85aece fmt: now in C++20 diff -r 48f9b1d447c9 -r 376c396887e0 LICENSE.libfmt.txt --- 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. diff -r 48f9b1d447c9 -r 376c396887e0 VERSION.libfmt.txt --- 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 diff -r 48f9b1d447c9 -r 376c396887e0 libfmt/CMakeLists.txt --- 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 - $ -) - -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 () diff -r 48f9b1d447c9 -r 376c396887e0 libfmt/include/fmt/core.h --- 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 -#include -#include -#include -#include -#include - -// 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() && \ - (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \ - (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910) -# include -# define FMT_USE_STD_STRING_VIEW -#elif (FMT_HAS_INCLUDE() && \ - __cplusplus >= 201402L) -# include -# define FMT_USE_EXPERIMENTAL_STRING_VIEW -#endif - -// std::result_of is defined in in gcc 4.4. -#if FMT_GCC_VERSION && FMT_GCC_VERSION <= 404 -# include -#endif - -FMT_BEGIN_NAMESPACE - -namespace internal { - -// An implementation of declval for pre-C++11 compilers such as gcc 4. -template -typename std::add_rvalue_reference::type declval() FMT_NOEXCEPT; - -// Casts nonnegative integer to unsigned. -template -FMT_CONSTEXPR typename std::make_unsigned::type to_unsigned(Int value) { - FMT_ASSERT(value >= 0, "negative value"); - return static_cast::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 -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 type; -#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW) - typedef std::experimental::basic_string_view 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::length``. - \endrst - */ - basic_string_view(const Char *s) - : data_(s), size_(std::char_traits::length(s)) {} - - /** Constructs a string reference from a ``std::basic_string`` object. */ - template - FMT_CONSTEXPR basic_string_view( - const std::basic_string &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::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 string_view; -typedef basic_string_view wstring_view; - -template -class basic_format_arg; - -template -class basic_format_args; - -// A formatter for objects of type T. -template -struct formatter; - -namespace internal { - -/** A contiguous memory buffer with an optional growing ability. */ -template -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 - 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 buffer; -typedef basic_buffer wbuffer; - -// A container-backed buffer. -template -class container_buffer : public basic_buffer { - 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(&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 -inline void require_wchar() { - static_assert( - std::is_same::value, - "formatting of wide characters into a narrow output is disallowed"); -} - -template -struct named_arg_base; - -template -struct named_arg; - -template -struct is_named_arg : std::false_type {}; - -template -struct is_named_arg> : 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 -struct convert_to_int { - enum { - value = !std::is_arithmetic::value && std::is_convertible::value - }; -}; - -template -struct string_value { - const Char *value; - std::size_t size; -}; - -template -struct custom_value { - const void *value; - void (*format)(const void *arg, Context &ctx); -}; - -// A formatting argument value. -template -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 string; - string_value sstring; - string_value ustring; - custom_value 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::value, - "incompatible string types"); - sstring.value = val; - } - value(const unsigned char *val) { - static_assert(std::is_same::value, - "incompatible string types"); - ustring.value = val; - } - value(basic_string_view val) { - string.value = val.data(); - string.size = val.size(); - } - value(const void *val) { pointer = val; } - - template - explicit value(const T &val) { - custom.value = &val; - custom.format = &format_custom_arg; - } - - const named_arg_base &as_named_arg() { - return *static_cast*>(pointer); - } - - private: - // Formats an argument of a custom type, such as a user-defined class. - template - 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` for `format` and - // `printf_formatter` for `printf`. - typename Context::template formatter_type::type f; - auto &&parse_ctx = ctx.parse_context(); - parse_ctx.advance_to(f.parse(parse_ctx)); - ctx.advance_to(f.format(*static_cast(arg), ctx)); - } -}; - -template -struct typed_value : value { - static const type type_tag = TYPE; - - template - FMT_CONSTEXPR typed_value(const T &val) : value(val) {} -}; - -template -FMT_CONSTEXPR basic_format_arg make_arg(const T &value); - -#define FMT_MAKE_VALUE(TAG, ArgType, ValueType) \ - template \ - FMT_CONSTEXPR typed_value make_value(ArgType val) { \ - return static_cast(val); \ - } - -#define FMT_MAKE_VALUE_SAME(TAG, Type) \ - template \ - FMT_CONSTEXPR typed_value 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::type - long_type; -FMT_MAKE_VALUE( - (sizeof(long) == sizeof(int) ? int_type : long_long_type), long, long_type) -typedef std::conditional::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 -inline typed_value make_value(wchar_t val) { - require_wchar(); - return static_cast(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) -FMT_MAKE_VALUE(string_type, - typename basic_string_view::type, - basic_string_view) -FMT_MAKE_VALUE(string_type, const std::basic_string&, - basic_string_view) -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 std::enable_if::value>::type - make_value(const T *) { - static_assert(!sizeof(T), "formatting of non-void pointers is disallowed"); -} - -template -inline typename std::enable_if< - std::is_enum::value && convert_to_int::value, - typed_value>::type - make_value(const T &val) { return static_cast(val); } - -template -inline typename std::enable_if< - !convert_to_int::value && - !std::is_convertible>::value, - // Implicit conversion to std::string is not handled here because it's - // unsafe: https://github.com/fmtlib/fmt/issues/729 - typed_value>::type - make_value(const T &val) { return val; } - -template -typed_value - make_value(const named_arg &val) { - basic_format_arg arg = make_arg(val.value); - std::memcpy(val.data, &arg, sizeof(arg)); - return static_cast(&val); -} - -// Maximum number of arguments with packed types. -enum { max_packed_args = 15 }; - -template -class arg_map; - -template -struct result_of; - -template -struct result_of { - // A workaround for gcc 4.4 that doesn't allow F to be a reference. - typedef typename std::result_of< - typename std::remove_reference::type(Args...)>::type type; -}; -} - -// A formatting argument. It is a trivially copyable/constructible type to -// allow storage in basic_memory_buffer. -template -class basic_format_arg { - private: - internal::value value_; - internal::type type_; - - template - friend FMT_CONSTEXPR basic_format_arg - internal::make_arg(const T &value); - - template - friend FMT_CONSTEXPR typename internal::result_of::type - visit(Visitor &&vis, basic_format_arg arg); - - friend class basic_format_args; - friend class internal::arg_map; - - typedef typename Context::char_type char_type; - - public: - class handle { - public: - explicit handle(internal::custom_value custom): custom_(custom) {} - - void format(Context &ctx) const { custom_.format(custom_.value, ctx); } - - private: - internal::custom_value 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 -class basic_parse_context : private ErrorHandler { - private: - basic_string_view format_str_; - int next_arg_id_; - - public: - typedef Char char_type; - typedef typename basic_string_view::iterator iterator; - - explicit FMT_CONSTEXPR basic_parse_context( - basic_string_view 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) {} - - FMT_CONSTEXPR void on_error(const char *message) { - ErrorHandler::on_error(message); - } - - FMT_CONSTEXPR ErrorHandler error_handler() const { return *this; } -}; - -typedef basic_parse_context parse_context; -typedef basic_parse_context wparse_context; - -namespace internal { -// A map from argument names to their values for named arguments. -template -class arg_map { - private: - FMT_DISALLOW_COPY_AND_ASSIGN(arg_map); - - typedef typename Context::char_type char_type; - - struct entry { - basic_string_view name; - basic_format_arg arg; - }; - - entry *map_; - unsigned size_; - - void push_back(value val) { - const internal::named_arg_base &named = val.as_named_arg(); - map_[size_] = entry{named.name, named.template deserialize()}; - ++size_; - } - - public: - arg_map() : map_(FMT_NULL), size_(0) {} - void init(const basic_format_args &args); - ~arg_map() { delete [] map_; } - - basic_format_arg find(basic_string_view 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(); - } -}; - -template -class context_base { - public: - typedef OutputIt iterator; - - private: - basic_parse_context parse_context_; - iterator out_; - basic_format_args args_; - - protected: - typedef Char char_type; - typedef basic_format_arg format_arg; - - context_base(OutputIt out, basic_string_view format_str, - basic_format_args 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 &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 args() const { return args_; } -}; - -// Extracts a reference to the container from back_insert_iterator. -template -inline Container &get_container(std::back_insert_iterator it) { - typedef std::back_insert_iterator 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 -class basic_format_context : - public internal::context_base< - OutputIt, basic_format_context, Char> { - public: - /** The character type for the output. */ - typedef Char char_type; - - // using formatter_type = formatter; - template - struct formatter_type { typedef formatter type; }; - - private: - internal::arg_map map_; - - FMT_DISALLOW_COPY_AND_ASSIGN(basic_format_context); - - typedef internal::context_base 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 format_str, - basic_format_args 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 name); -}; - -template -struct buffer_context { - typedef basic_format_context< - std::back_insert_iterator>, Char> type; -}; -typedef buffer_context::type format_context; -typedef buffer_context::type wformat_context; - -namespace internal { -template -struct get_type { - typedef decltype(make_value( - declval::type&>())) value_type; - static const type value = value_type::type_tag; -}; - -template -FMT_CONSTEXPR unsigned long long get_types() { return 0; } - -template -FMT_CONSTEXPR unsigned long long get_types() { - return get_type::value | (get_types() << 4); -} - -template -FMT_CONSTEXPR basic_format_arg make_arg(const T &value) { - basic_format_arg arg; - arg.type_ = get_type::value; - arg.value_ = make_value(value); - return arg; -} - -template -inline typename std::enable_if>::type - make_arg(const T &value) { - return make_value(value); -} - -template -inline typename std::enable_if>::type - make_arg(const T &value) { - return make_arg(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 -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, basic_format_arg>::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; - - static FMT_CONSTEXPR long long get_types() { - return IS_PACKED ? - static_cast(internal::get_types()) : - -static_cast(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(args)...}; - std::memcpy(data_, init, sizeof(init)); - } -#else - format_arg_store(const Args &... args) - : data_{internal::make_arg(args)...} {} -#endif -}; - -#if !FMT_USE_CONSTEXPR -template -const long long format_arg_store::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 -inline format_arg_store - make_format_args(const Args & ... args) { - return format_arg_store(args...); -} - -template -inline format_arg_store - make_format_args(const Args & ... args) { - return format_arg_store(args...); -} - -/** Formatting arguments. */ -template -class basic_format_args { - public: - typedef unsigned size_type; - typedef basic_format_arg 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 *values_; - const format_arg *args_; - }; - - typename internal::type type(unsigned index) const { - unsigned shift = index * 4; - unsigned long long mask = 0xf; - return static_cast( - (types_ & (mask << shift)) >> shift); - } - - friend class internal::arg_map; - - void set_data(const internal::value *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(types_); - if (signed_types < 0) { - unsigned long long num_args = static_cast(-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 &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 - basic_format_args(const format_arg_store &store) - : types_(static_cast(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() : arg; - } - - unsigned max_size() const { - long long signed_types = static_cast(types_); - return static_cast( - signed_types < 0 ? - -signed_types : static_cast(internal::max_packed_args)); - } -}; - -/** An alias to ``basic_format_args``. */ -// It is a separate type rather than a typedef to make symbols readable. -struct format_args: basic_format_args { - template - format_args(Args && ... arg) - : basic_format_args(std::forward(arg)...) {} -}; -struct wformat_args : basic_format_args { - template - wformat_args(Args && ... arg) - : basic_format_args(std::forward(arg)...) {} -}; - -namespace internal { -template -struct named_arg_base { - basic_string_view name; - - // Serialized value. - mutable char data[sizeof(basic_format_arg)]; - - named_arg_base(basic_string_view nm) : name(nm) {} - - template - basic_format_arg deserialize() const { - basic_format_arg arg; - std::memcpy(&arg, data, sizeof(basic_format_arg)); - return arg; - } -}; - -template -struct named_arg : named_arg_base { - const T &value; - - named_arg(basic_string_view name, const T &val) - : named_arg_base(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 -inline internal::named_arg arg(string_view name, const T &arg) { - return internal::named_arg(name, arg); -} - -template -inline internal::named_arg arg(wstring_view name, const T &arg) { - return internal::named_arg(name, arg); -} - -// This function template is deleted intentionally to disable nested named -// arguments as in ``format("{}", arg("a", arg("b", 42)))``. -template -void arg(S, internal::named_arg) 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 -inline void print_colored(color c, string_view format_str, - const Args & ... args) { - vprint_colored(c, format_str, make_format_args(args...)); -} -template -inline void print_colored(color c, wstring_view format_str, - const Args & ... args) { - vprint_colored(c, format_str, make_format_args(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 -struct is_contiguous : std::false_type {}; - -template -struct is_contiguous> : std::true_type {}; - -template -struct is_contiguous> : std::true_type {}; - -/** Formats a string and writes the output to ``out``. */ -template -typename std::enable_if< - is_contiguous::value, std::back_insert_iterator>::type - vformat_to(std::back_insert_iterator out, - string_view format_str, format_args args) { - auto& container = internal::get_container(out); - internal::container_buffer buf(container); - vformat_to(buf, format_str, args); - return std::back_inserter(container); -} - -template -typename std::enable_if< - is_contiguous::value, std::back_insert_iterator>::type - vformat_to(std::back_insert_iterator out, - wstring_view format_str, wformat_args args) { - auto& container = internal::get_container(out); - internal::container_buffer 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 - std::string message = fmt::format("The answer is {}", 42); - \endrst -*/ -template -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 as{args...}; - return vformat(format_str, as); -} -template -inline std::wstring format(wstring_view format_str, const Args & ... args) { - format_arg_store 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 -inline void print(std::FILE *f, string_view format_str, const Args & ... args) { - format_arg_store 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 -inline void print(std::FILE *f, wstring_view format_str, const Args & ... args) { - format_arg_store 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 -inline void print(string_view format_str, const Args & ... args) { - format_arg_store as{args...}; - vprint(format_str, as); -} - -template -inline void print(wstring_view format_str, const Args & ... args) { - format_arg_store as(args...); - vprint(format_str, as); -} -FMT_END_NAMESPACE - -#endif // FMT_CORE_H_ diff -r 48f9b1d447c9 -r 376c396887e0 libfmt/include/fmt/format-inl.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 - -#include -#include -#include -#include -#include -#include // for std::ptrdiff_t -#include - -#if defined(_WIN32) && defined(__MINGW32__) -# include -#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 -# else -# define NOMINMAX -# include -# 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::main_type main_type; - main_type abs_value = static_cast(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 -FMT_FUNC Char internal::thousands_sep(locale_provider *lp) { - std::locale loc = lp ? lp->locale().get() : std::locale(); - return std::use_facet>(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 -int char_traits::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 -int char_traits::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 -const char basic_data::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 -const uint32_t basic_data::POWERS_OF_10_32[] = { - 0, FMT_POWERS_OF_10(1) -}; - -template -const uint64_t basic_data::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 -const uint64_t basic_data::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 -const int16_t basic_data::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 const char basic_data::RESET_COLOR[] = "\x1b[0m"; -template const wchar_t basic_data::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(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(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(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(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 -void basic_fixed_buffer::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('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('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('0' + c / 100); - out[offset + 1] = static_cast('0' + c / 10 % 10); - out[offset + 2] = static_cast('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_ diff -r 48f9b1d447c9 -r 376c396887e0 libfmt/include/fmt/format.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 -#include -#include -#include -#include -#include -#include -#include - -#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 -#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 -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(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 // _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(x >> 32))) - return 63 - (r + 32); - - // Scan the low 32 bits. - _BitScanReverse(&r, static_cast(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(&source)` that doesn't produce -// undefined behavior (e.g. due to type aliasing). -// Example: uint64_t d = bit_cast(2.718); -template -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 -FMT_CONSTEXPR auto begin(const C &c) -> decltype(c.begin()) { - return c.begin(); -} -template -FMT_CONSTEXPR T *begin(T (&array)[N]) FMT_NOEXCEPT { return array; } -template -FMT_CONSTEXPR auto end(const C &c) -> decltype(c.end()) { return c.end(); } -template -FMT_CONSTEXPR T *end(T (&array)[N]) FMT_NOEXCEPT { return array + N; } - -// For std::result_of in gcc 4.4. -template -struct function { - template - struct result { typedef Result type; }; -}; - -struct dummy_int { - int data[2]; - operator int() const { return 0; } -}; -typedef std::numeric_limits 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::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::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 - explicit fp(Double d) { - // Assume double is in the format [sign][exponent][significand]. - typedef std::numeric_limits 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(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(biased_e - exponent_bias - double_significand_size); - } - - // Normalizes the value converted from double and multiplied by (1 << SHIFT). - template - 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::value_type *allocate(Allocator& alloc, std::size_t n) { -#if __cplusplus >= 201103L || FMT_MSC_VER >= 1700 - return std::allocator_traits::allocate(alloc, n); -#else - return alloc.allocate(n); -#endif -} - -// A helper function to suppress bogus "conditional expression is constant" -// warnings. -template -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 : - public std::numeric_limits { - public: - // Portable version of isinf. - template - 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(x)); - } - - // Portable version of isnan. - template - 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(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 -class basic_writer; - -template -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 -class back_insert_range: - public output_range> { - typedef output_range> 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> writer; -typedef basic_writer> 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 -struct checked { typedef stdext::checked_array_iterator type; }; - -// Make a checked iterator to avoid warnings on MSVC. -template -inline stdext::checked_array_iterator make_checked(T *p, std::size_t size) { - return {p, size}; -} -#else -template -struct checked { typedef T *type; }; -template -inline T *make_checked(T *p, std::size_t) { return p; } -#endif - -template -template -void basic_buffer::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 -// 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 | - +----------------+------------------------------+ - | wmemory_buffer | basic_memory_buffer | - +----------------+------------------------------+ - - **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 > -class basic_memory_buffer: private Allocator, public internal::basic_buffer { - 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 -void basic_memory_buffer::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(*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 memory_buffer; -typedef basic_memory_buffer 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 -class basic_fixed_buffer : public internal::basic_buffer { - 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 - 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 -struct char_traits; - -template <> -struct char_traits { - // Formats a floating-point number. - template - FMT_API static int format_float(char *buffer, std::size_t size, - const char *format, int precision, T value); -}; - -template <> -struct char_traits { - template - 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::format_float( - char *buffer, std::size_t size, const char* format, int precision, - double value); -extern template int char_traits::format_float( - char *buffer, std::size_t size, const char* format, int precision, - long double value); - -extern template int char_traits::format_float( - wchar_t *buffer, std::size_t size, const wchar_t* format, int precision, - double value); -extern template int char_traits::format_float