--- a/LICENSE.cppformat	Wed Jun 22 09:38:51 2016 +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.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LICENSE.fmt	Wed Jun 22 15:52:12 2016 +0200
@@ -0,0 +1,23 @@
+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.cppformat	Wed Jun 22 09:38:51 2016 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-2.1.1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/VERSION.fmt	Wed Jun 22 15:52:12 2016 +0200
@@ -0,0 +1,1 @@
+3.0.0

--- a/cppformat/CMakeLists.txt	Wed Jun 22 09:38:51 2016 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,22 +0,0 @@
-#
-# CMakeLists.txt -- CMake build system for cppformat
-#
-# Copyright (c) 2016 David Demelier <markand@malikania.fr>
-#
-# Permission to use, copy, modify, and/or distribute this software for any
-# purpose with or without fee is hereby granted, provided that the above
-# copyright notice and this permission notice appear in all copies.
-#
-# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-#
-
-cmake_minimum_required(VERSION 3.0)
-project(cppformat)
-add_library(cppformat STATIC format.cc format.h)
-target_include_directories(cppformat PUBLIC ${cppformat_SOURCE_DIR})

--- a/cppformat/format.cc	Wed Jun 22 09:38:51 2016 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1385 +0,0 @@
-/*
- Formatting library for C++
-
- 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.
- */
-
-#include "format.h"
-
-#include <string.h>
-
-#include <cctype>
-#include <cerrno>
-#include <climits>
-#include <cmath>
-#include <cstdarg>
-#include <cstddef>  // for std::ptrdiff_t
-
-#if defined(_WIN32) && defined(__MINGW32__)
-# include <cstring>
-#endif
-
-#if FMT_USE_WINDOWS_H
-# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
-#  include <windows.h>
-# else
-#  define NOMINMAX
-#  include <windows.h>
-#  undef NOMINMAX
-# endif
-#endif
-
-using fmt::internal::Arg;
-
-// Check if exceptions are disabled.
-#if defined(__GNUC__) && !defined(__EXCEPTIONS)
-# define FMT_EXCEPTIONS 0
-#endif
-#if defined(_MSC_VER) && !_HAS_EXCEPTIONS
-# define FMT_EXCEPTIONS 0
-#endif
-#ifndef FMT_EXCEPTIONS
-# define FMT_EXCEPTIONS 1
-#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
-
-#ifndef FMT_THROW
-# if FMT_EXCEPTIONS
-#  define FMT_THROW(x) throw x
-# else
-#  define FMT_THROW(x) assert(false)
-# endif
-#endif
-
-#ifdef FMT_HEADER_ONLY
-# define FMT_FUNC inline
-#else
-# define FMT_FUNC
-#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.
-static inline fmt::internal::Null<> strerror_r(int, char *, ...) {
-  return fmt::internal::Null<>();
-}
-static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...) {
-  return fmt::internal::Null<>();
-}
-
-namespace fmt {
-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)
-
-// Checks if a value fits in int - used to avoid warnings about comparing
-// signed and unsigned integers.
-template <bool IsSigned>
-struct IntChecker {
-  template <typename T>
-  static bool fits_in_int(T value) {
-    unsigned max = INT_MAX;
-    return value <= max;
-  }
-  static bool fits_in_int(bool) { return true; }
-};
-
-template <>
-struct IntChecker<true> {
-  template <typename T>
-  static bool fits_in_int(T value) {
-    return value >= INT_MIN && value <= INT_MAX;
-  }
-  static bool fits_in_int(int) { return true; }
-};
-
-const char RESET_COLOR[] = "\x1b[0m";
-
-typedef void (*FormatFunc)(fmt::Writer &, int, fmt::StringRef);
-
-// 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 != 0 && buffer_size != 0, "invalid buffer");
-
-  class StrError {
-   private:
-    int error_code_;
-    char *&buffer_;
-    std::size_t buffer_size_;
-
-    // A noop assignment operator to avoid bogus warnings.
-    void operator=(const StrError &) {}
-
-    // 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(fmt::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(fmt::internal::Null<>) {
-      errno = 0;
-      buffer_ = strerror(error_code_);
-      return errno;
-    }
-
-   public:
-    StrError(int err_code, char *&buf, std::size_t buf_size)
-      : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
-
-    int run() {
-      strerror_r(0, 0, "");  // Suppress a warning about unused strerror_r.
-      return handle(strerror_r(error_code_, buffer_, buffer_size_));
-    }
-  };
-  return StrError(error_code, buffer, buffer_size).run();
-}
-
-void format_error_code(fmt::Writer &out, int error_code,
-                       fmt::StringRef 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.clear();
-  static const char SEP[] = ": ";
-  static const char ERROR_STR[] = "error ";
-  fmt::internal::IntTraits<int>::MainType ec_value = error_code;
-  // 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;
-  error_code_size += fmt::internal::count_digits(ec_value);
-  if (message.size() <= fmt::internal::INLINE_BUFFER_SIZE - error_code_size)
-    out << message << SEP;
-  out << ERROR_STR << error_code;
-  assert(out.size() <= fmt::internal::INLINE_BUFFER_SIZE);
-}
-
-void report_error(FormatFunc func,
-    int error_code, fmt::StringRef message) FMT_NOEXCEPT {
-  fmt::MemoryWriter 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);
-}
-
-// IsZeroInt::visit(arg) returns true iff arg is a zero integer.
-class IsZeroInt : public fmt::internal::ArgVisitor<IsZeroInt, bool> {
- public:
-  template <typename T>
-  bool visit_any_int(T value) { return value == 0; }
-};
-
-// Parses an unsigned integer advancing s to the end of the parsed input.
-// This function assumes that the first character of s is a digit.
-template <typename Char>
-int parse_nonnegative_int(const Char *&s) {
-  assert('0' <= *s && *s <= '9');
-  unsigned value = 0;
-  do {
-    unsigned new_value = value * 10 + (*s++ - '0');
-    // Check if value wrapped around.
-    if (new_value < value) {
-      value = UINT_MAX;
-      break;
-    }
-    value = new_value;
-  } while ('0' <= *s && *s <= '9');
-  if (value > INT_MAX)
-    FMT_THROW(fmt::FormatError("number is too big"));
-  return value;
-}
-
-template <typename Char>
-inline bool is_name_start(Char c) {
-  return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
-}
-
-inline void require_numeric_argument(const Arg &arg, char spec) {
-  if (arg.type > Arg::LAST_NUMERIC_TYPE) {
-    std::string message =
-        fmt::format("format specifier '{}' requires numeric argument", spec);
-    FMT_THROW(fmt::FormatError(message));
-  }
-}
-
-template <typename Char>
-void check_sign(const Char *&s, const Arg &arg) {
-  char sign = static_cast<char>(*s);
-  require_numeric_argument(arg, sign);
-  if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG) {
-    FMT_THROW(fmt::FormatError(fmt::format(
-      "format specifier '{}' requires signed argument", sign)));
-  }
-  ++s;
-}
-
-// Checks if an argument is a valid printf width specifier and sets
-// left alignment if it is negative.
-class WidthHandler : public fmt::internal::ArgVisitor<WidthHandler, unsigned> {
- private:
-  fmt::FormatSpec &spec_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler);
-
- public:
-  explicit WidthHandler(fmt::FormatSpec &spec) : spec_(spec) {}
-
-  void report_unhandled_arg() {
-    FMT_THROW(fmt::FormatError("width is not integer"));
-  }
-
-  template <typename T>
-  unsigned visit_any_int(T value) {
-    typedef typename fmt::internal::IntTraits<T>::MainType UnsignedType;
-    UnsignedType width = value;
-    if (fmt::internal::is_negative(value)) {
-      spec_.align_ = fmt::ALIGN_LEFT;
-      width = 0 - width;
-    }
-    if (width > INT_MAX)
-      FMT_THROW(fmt::FormatError("number is too big"));
-    return static_cast<unsigned>(width);
-  }
-};
-
-class PrecisionHandler :
-    public fmt::internal::ArgVisitor<PrecisionHandler, int> {
- public:
-  void report_unhandled_arg() {
-    FMT_THROW(fmt::FormatError("precision is not integer"));
-  }
-
-  template <typename T>
-  int visit_any_int(T value) {
-    if (!IntChecker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
-      FMT_THROW(fmt::FormatError("number is too big"));
-    return static_cast<int>(value);
-  }
-};
-
-// Converts an integer argument to an integral type T for printf.
-template <typename T>
-class ArgConverter : public fmt::internal::ArgVisitor<ArgConverter<T>, void> {
- private:
-  fmt::internal::Arg &arg_;
-  wchar_t type_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter);
-
- public:
-  ArgConverter(fmt::internal::Arg &arg, wchar_t type)
-    : arg_(arg), type_(type) {}
-
-  void visit_bool(bool value) {
-    if (type_ != 's')
-      visit_any_int(value);
-  }
-
-  template <typename U>
-  void visit_any_int(U value) {
-    bool is_signed = type_ == 'd' || type_ == 'i';
-    using fmt::internal::Arg;
-    if (sizeof(T) <= sizeof(int)) {
-      // Extra casts are used to silence warnings.
-      if (is_signed) {
-        arg_.type = Arg::INT;
-        arg_.int_value = static_cast<int>(static_cast<T>(value));
-      } else {
-        arg_.type = Arg::UINT;
-        arg_.uint_value = static_cast<unsigned>(
-            static_cast<typename fmt::internal::MakeUnsigned<T>::Type>(value));
-      }
-    } else {
-      if (is_signed) {
-        arg_.type = Arg::LONG_LONG;
-        arg_.long_long_value =
-            static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
-      } else {
-        arg_.type = Arg::ULONG_LONG;
-        arg_.ulong_long_value =
-            static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
-      }
-    }
-  }
-};
-
-// Converts an integer argument to char for printf.
-class CharConverter : public fmt::internal::ArgVisitor<CharConverter, void> {
- private:
-  fmt::internal::Arg &arg_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter);
-
- public:
-  explicit CharConverter(fmt::internal::Arg &arg) : arg_(arg) {}
-
-  template <typename T>
-  void visit_any_int(T value) {
-    arg_.type = Arg::CHAR;
-    arg_.int_value = static_cast<char>(value);
-  }
-};
-}  // namespace
-
-namespace internal {
-
-template <typename Impl, typename Char>
-class BasicArgFormatter : public ArgVisitor<Impl, void> {
- private:
-  BasicWriter<Char> &writer_;
-  FormatSpec &spec_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(BasicArgFormatter);
-
-  void write_pointer(const void *p) {
-    spec_.flags_ = HASH_FLAG;
-    spec_.type_ = 'x';
-    writer_.write_int(reinterpret_cast<uintptr_t>(p), spec_);
-  }
-
- protected:
-  BasicWriter<Char> &writer() { return writer_; }
-  FormatSpec &spec() { return spec_; }
-  
-  void write(bool value) {
-    const char *str_value = value ? "true" : "false";
-    Arg::StringValue<char> str = { str_value, strlen(str_value) };
-    writer_.write_str(str, spec_);
-  }
-
-  void write(const char *value) {
-    Arg::StringValue<char> str = {value, value != 0 ? strlen(value) : 0};
-    writer_.write_str(str, spec_);
-  }
-
- public:
-  BasicArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
-  : writer_(w), spec_(s) {}
-
-  template <typename T>
-  void visit_any_int(T value) { writer_.write_int(value, spec_); }
-
-  template <typename T>
-  void visit_any_double(T value) { writer_.write_double(value, spec_); }
-
-  void visit_bool(bool value) {
-    if (spec_.type_)
-      return visit_any_int(value);
-    write(value);
-  }
-
-  void visit_char(int value) {
-    if (spec_.type_ && spec_.type_ != 'c') {
-      spec_.flags_ |= CHAR_FLAG;
-      writer_.write_int(value, spec_);
-      return;
-    }
-    if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0)
-      FMT_THROW(FormatError("invalid format specifier for char"));
-    typedef typename BasicWriter<Char>::CharPtr CharPtr;
-    Char fill = internal::CharTraits<Char>::cast(spec_.fill());
-    CharPtr out = CharPtr();
-    const unsigned CHAR_WIDTH = 1;
-    if (spec_.width_ > CHAR_WIDTH) {
-      out = writer_.grow_buffer(spec_.width_);
-      if (spec_.align_ == ALIGN_RIGHT) {
-        std::fill_n(out, spec_.width_ - CHAR_WIDTH, fill);
-        out += spec_.width_ - CHAR_WIDTH;
-      } else if (spec_.align_ == ALIGN_CENTER) {
-        out = writer_.fill_padding(out, spec_.width_,
-                                   internal::check(CHAR_WIDTH), fill);
-      } else {
-        std::fill_n(out + CHAR_WIDTH, spec_.width_ - CHAR_WIDTH, fill);
-      }
-    } else {
-      out = writer_.grow_buffer(CHAR_WIDTH);
-    }
-    *out = internal::CharTraits<Char>::cast(value);
-  }
-
-  void visit_cstring(const char *value) {
-    if (spec_.type_ == 'p')
-      return write_pointer(value);
-    write(value);
-  }
-
-  void visit_string(Arg::StringValue<char> value) {
-    writer_.write_str(value, spec_);
-  }
-
-  using ArgVisitor<Impl, void>::visit_wstring;
-
-  void visit_wstring(Arg::StringValue<Char> value) {
-    writer_.write_str(value, spec_);
-  }
-
-  void visit_pointer(const void *value) {
-    if (spec_.type_ && spec_.type_ != 'p')
-      report_unknown_type(spec_.type_, "pointer");
-    write_pointer(value);
-  }
-};
-
-// An argument formatter.
-template <typename Char>
-class ArgFormatter : public BasicArgFormatter<ArgFormatter<Char>, Char> {
- private:
-  BasicFormatter<Char> &formatter_;
-  const Char *format_;
-
- public:
-  ArgFormatter(BasicFormatter<Char> &f, FormatSpec &s, const Char *fmt)
-  : BasicArgFormatter<ArgFormatter<Char>, Char>(f.writer(), s),
-    formatter_(f), format_(fmt) {}
-
-  void visit_custom(Arg::CustomValue c) {
-    c.format(&formatter_, c.value, &format_);
-  }
-};
-
-template <typename Char>
-class PrintfArgFormatter :
-    public BasicArgFormatter<PrintfArgFormatter<Char>, Char> {
-
-  void write_null_pointer() {
-    this->spec().type_ = 0;
-    this->write("(nil)");
-  }
-
-  typedef BasicArgFormatter<PrintfArgFormatter<Char>, Char> Base;
-
- public:
-  PrintfArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
-  : BasicArgFormatter<PrintfArgFormatter<Char>, Char>(w, s) {}
-
-  void visit_bool(bool value) {
-    FormatSpec &fmt_spec = this->spec();
-    if (fmt_spec.type_ != 's')
-      return this->visit_any_int(value);
-    fmt_spec.type_ = 0;
-    this->write(value);
-  }
-
-  void visit_char(int value) {
-    const FormatSpec &fmt_spec = this->spec();
-    BasicWriter<Char> &w = this->writer();
-    if (fmt_spec.type_ && fmt_spec.type_ != 'c')
-      w.write_int(value, fmt_spec);
-    typedef typename BasicWriter<Char>::CharPtr CharPtr;
-    CharPtr out = CharPtr();
-    if (fmt_spec.width_ > 1) {
-      Char fill = ' ';
-      out = w.grow_buffer(fmt_spec.width_);
-      if (fmt_spec.align_ != ALIGN_LEFT) {
-        std::fill_n(out, fmt_spec.width_ - 1, fill);
-        out += fmt_spec.width_ - 1;
-      } else {
-        std::fill_n(out + 1, fmt_spec.width_ - 1, fill);
-      }
-    } else {
-      out = w.grow_buffer(1);
-    }
-    *out = static_cast<Char>(value);
-  }
-
-  void visit_cstring(const char *value) {
-    if (value)
-      Base::visit_cstring(value);
-    else if (this->spec().type_ == 'p')
-      write_null_pointer();
-    else
-      this->write("(null)");
-  }
-
-  void visit_pointer(const void *value) {
-    if (value)
-      return Base::visit_pointer(value);
-    this->spec().type_ = 0;
-    write_null_pointer();
-  }
-
-  void visit_custom(Arg::CustomValue c) {
-    BasicFormatter<Char> formatter(ArgList(), this->writer());
-    const Char format_str[] = {'}', 0};
-    const Char *format = format_str;
-    c.format(&formatter, c.value, &format);
-  }
-};
-}  // namespace internal
-}  // namespace fmt
-
-FMT_FUNC void fmt::SystemError::init(
-    int err_code, CStringRef format_str, ArgList args) {
-  error_code_ = err_code;
-  MemoryWriter w;
-  internal::format_system_error(w, err_code, format(format_str, args));
-  std::runtime_error &base = *this;
-  base = std::runtime_error(w.str());
-}
-
-template <typename T>
-int fmt::internal::CharTraits<char>::format_float(
-    char *buffer, std::size_t size, const char *format,
-    unsigned width, int precision, T value) {
-  if (width == 0) {
-    return precision < 0 ?
-        FMT_SNPRINTF(buffer, size, format, value) :
-        FMT_SNPRINTF(buffer, size, format, precision, value);
-  }
-  return precision < 0 ?
-      FMT_SNPRINTF(buffer, size, format, width, value) :
-      FMT_SNPRINTF(buffer, size, format, width, precision, value);
-}
-
-template <typename T>
-int fmt::internal::CharTraits<wchar_t>::format_float(
-    wchar_t *buffer, std::size_t size, const wchar_t *format,
-    unsigned width, int precision, T value) {
-  if (width == 0) {
-    return precision < 0 ?
-        FMT_SWPRINTF(buffer, size, format, value) :
-        FMT_SWPRINTF(buffer, size, format, precision, value);
-  }
-  return precision < 0 ?
-      FMT_SWPRINTF(buffer, size, format, width, value) :
-      FMT_SWPRINTF(buffer, size, format, width, precision, value);
-}
-
-template <typename T>
-const char fmt::internal::BasicData<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 fmt::internal::BasicData<T>::POWERS_OF_10_32[] = {
-  0, FMT_POWERS_OF_10(1)
-};
-
-template <typename T>
-const uint64_t fmt::internal::BasicData<T>::POWERS_OF_10_64[] = {
-  0,
-  FMT_POWERS_OF_10(1),
-  FMT_POWERS_OF_10(fmt::ULongLong(1000000000)),
-  // Multiply several constants instead of using a single long long constant
-  // to avoid warnings about C++98 not supporting long long.
-  fmt::ULongLong(1000000000) * fmt::ULongLong(1000000000) * 10
-};
-
-FMT_FUNC void fmt::internal::report_unknown_type(char code, const char *type) {
-  (void)type;
-  if (std::isprint(static_cast<unsigned char>(code))) {
-    FMT_THROW(fmt::FormatError(
-        fmt::format("unknown format code '{}' for {}", code, type)));
-  }
-  FMT_THROW(fmt::FormatError(
-      fmt::format("unknown format code '\\x{:02x}' for {}",
-        static_cast<unsigned>(code), type)));
-}
-
-#if FMT_USE_WINDOWS_H
-
-FMT_FUNC fmt::internal::UTF8ToUTF16::UTF8ToUTF16(fmt::StringRef s) {
-  static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
-  if (s.size() > INT_MAX)
-    FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG));
-  int s_size = static_cast<int>(s.size());
-  int length = MultiByteToWideChar(
-      CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0);
-  if (length == 0)
-    FMT_THROW(WindowsError(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(WindowsError(GetLastError(), ERROR_MSG));
-  buffer_[length] = 0;
-}
-
-FMT_FUNC fmt::internal::UTF16ToUTF8::UTF16ToUTF8(fmt::WStringRef s) {
-  if (int error_code = convert(s)) {
-    FMT_THROW(WindowsError(error_code,
-        "cannot convert string from UTF-16 to UTF-8"));
-  }
-}
-
-FMT_FUNC int fmt::internal::UTF16ToUTF8::convert(fmt::WStringRef s) {
-  if (s.size() > INT_MAX)
-    return ERROR_INVALID_PARAMETER;
-  int s_size = static_cast<int>(s.size());
-  int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0);
-  if (length == 0)
-    return GetLastError();
-  buffer_.resize(length + 1);
-  length = WideCharToMultiByte(
-    CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0);
-  if (length == 0)
-    return GetLastError();
-  buffer_[length] = 0;
-  return 0;
-}
-
-FMT_FUNC void fmt::WindowsError::init(
-    int err_code, CStringRef format_str, ArgList args) {
-  error_code_ = err_code;
-  MemoryWriter w;
-  internal::format_windows_error(w, err_code, format(format_str, args));
-  std::runtime_error &base = *this;
-  base = std::runtime_error(w.str());
-}
-
-FMT_FUNC void fmt::internal::format_windows_error(
-    fmt::Writer &out, int error_code,
-    fmt::StringRef message) FMT_NOEXCEPT {
-  class String {
-   private:
-    LPWSTR str_;
-
-   public:
-    String() : str_() {}
-    ~String() { LocalFree(str_); }
-    LPWSTR *ptr() { return &str_; }
-    LPCWSTR c_str() const { return str_; }
-  };
-  FMT_TRY {
-    String system_message;
-    if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER |
-        FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 0,
-        error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-        reinterpret_cast<LPWSTR>(system_message.ptr()), 0, 0)) {
-      UTF16ToUTF8 utf8_message;
-      if (utf8_message.convert(system_message.c_str()) == ERROR_SUCCESS) {
-        out << message << ": " << utf8_message;
-        return;
-      }
-    }
-  } FMT_CATCH(...) {}
-  fmt::format_error_code(out, error_code, message);  // 'fmt::' is for bcc32.
-}
-
-#endif  // FMT_USE_WINDOWS_H
-
-FMT_FUNC void fmt::internal::format_system_error(
-    fmt::Writer &out, int error_code,
-    fmt::StringRef message) FMT_NOEXCEPT {
-  FMT_TRY {
-    MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer;
-    buffer.resize(INLINE_BUFFER_SIZE);
-    for (;;) {
-      char *system_message = &buffer[0];
-      int result = safe_strerror(error_code, system_message, buffer.size());
-      if (result == 0) {
-        out << message << ": " << system_message;
-        return;
-      }
-      if (result != ERANGE)
-        break;  // Can't get error message, report error code instead.
-      buffer.resize(buffer.size() * 2);
-    }
-  } FMT_CATCH(...) {}
-  fmt::format_error_code(out, error_code, message);  // 'fmt::' is for bcc32.
-}
-
-template <typename Char>
-void fmt::internal::ArgMap<Char>::init(const ArgList &args) {
-  if (!map_.empty())
-    return;
-  typedef internal::NamedArg<Char> NamedArg;
-  const NamedArg *named_arg = 0;
-  bool use_values =
-      args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE;
-  if (use_values) {
-    for (unsigned i = 0;/*nothing*/; ++i) {
-      internal::Arg::Type arg_type = args.type(i);
-      switch (arg_type) {
-      case internal::Arg::NONE:
-        return;
-      case internal::Arg::NAMED_ARG:
-        named_arg = static_cast<const NamedArg*>(args.values_[i].pointer);
-        map_.insert(Pair(named_arg->name, *named_arg));
-        break;
-      default:
-        /*nothing*/;
-      }
-    }
-    return;
-  }
-  for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i) {
-    internal::Arg::Type arg_type = args.type(i);
-    if (arg_type == internal::Arg::NAMED_ARG) {
-      named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
-      map_.insert(Pair(named_arg->name, *named_arg));
-    }
-  }
-  for (unsigned i = ArgList::MAX_PACKED_ARGS;/*nothing*/; ++i) {
-    switch (args.args_[i].type) {
-    case internal::Arg::NONE:
-      return;
-    case internal::Arg::NAMED_ARG:
-      named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
-      map_.insert(Pair(named_arg->name, *named_arg));
-      break;
-    default:
-      /*nothing*/;
-    }
-  }
-}
-
-template <typename Char>
-void fmt::internal::FixedBuffer<Char>::grow(std::size_t) {
-  FMT_THROW(std::runtime_error("buffer overflow"));
-}
-
-template <typename Char>
-template <typename StrChar>
-void fmt::BasicWriter<Char>::write_str(
-    const Arg::StringValue<StrChar> &s, const FormatSpec &spec) {
-  // Check if StrChar is convertible to Char.
-  internal::CharTraits<Char>::convert(StrChar());
-  if (spec.type_ && spec.type_ != 's')
-    internal::report_unknown_type(spec.type_, "string");
-  const StrChar *str_value = s.value;
-  std::size_t str_size = s.size;
-  if (str_size == 0) {
-    if (!str_value) {
-      FMT_THROW(FormatError("string pointer is null"));
-      return;
-    }
-  }
-  std::size_t precision = spec.precision_;
-  if (spec.precision_ >= 0 && precision < str_size)
-    str_size = spec.precision_;
-  write_str(str_value, str_size, spec);
-}
-
-template <typename Char>
-inline Arg fmt::BasicFormatter<Char>::get_arg(
-  BasicStringRef<Char> arg_name, const char *&error) {
-  if (check_no_auto_index(error)) {
-    map_.init(args());
-    const Arg *arg = map_.find(arg_name);
-    if (arg)
-      return *arg;
-    error = "argument not found";
-  }
-  return Arg();
-}
-
-template <typename Char>
-inline Arg fmt::BasicFormatter<Char>::parse_arg_index(const Char *&s) {
-  const char *error = 0;
-  Arg arg = *s < '0' || *s > '9' ?
-        next_arg(error) : get_arg(parse_nonnegative_int(s), error);
-  if (error) {
-    FMT_THROW(FormatError(
-                *s != '}' && *s != ':' ? "invalid format string" : error));
-  }
-  return arg;
-}
-
-template <typename Char>
-inline Arg fmt::BasicFormatter<Char>::parse_arg_name(const Char *&s) {
-  assert(is_name_start(*s));
-  const Char *start = s;
-  Char c;
-  do {
-    c = *++s;
-  } while (is_name_start(c) || ('0' <= c && c <= '9'));
-  const char *error = 0;
-  Arg arg = get_arg(fmt::BasicStringRef<Char>(start, s - start), error);
-  if (error)
-    FMT_THROW(fmt::FormatError(error));
-  return arg;
-}
-
-FMT_FUNC Arg fmt::internal::FormatterBase::do_get_arg(
-    unsigned arg_index, const char *&error) {
-  Arg arg = args_[arg_index];
-  switch (arg.type) {
-  case Arg::NONE:
-    error = "argument index out of range";
-    break;
-  case Arg::NAMED_ARG:
-    arg = *static_cast<const internal::Arg*>(arg.pointer);
-  default:
-    /*nothing*/;
-  }
-  return arg;
-}
-
-inline Arg fmt::internal::FormatterBase::next_arg(const char *&error) {
-  if (next_arg_index_ >= 0)
-    return do_get_arg(next_arg_index_++, error);
-  error = "cannot switch from manual to automatic argument indexing";
-  return Arg();
-}
-
-inline bool fmt::internal::FormatterBase::check_no_auto_index(
-    const char *&error) {
-  if (next_arg_index_ > 0) {
-    error = "cannot switch from automatic to manual argument indexing";
-    return false;
-  }
-  next_arg_index_ = -1;
-  return true;
-}
-
-inline Arg fmt::internal::FormatterBase::get_arg(
-    unsigned arg_index, const char *&error) {
-  return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg();
-}
-
-template <typename Char>
-void fmt::internal::PrintfFormatter<Char>::parse_flags(
-    FormatSpec &spec, const Char *&s) {
-  for (;;) {
-    switch (*s++) {
-      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:
-        --s;
-        return;
-    }
-  }
-}
-
-template <typename Char>
-Arg fmt::internal::PrintfFormatter<Char>::get_arg(
-    const Char *s, unsigned arg_index) {
-  (void)s;
-  const char *error = 0;
-  Arg arg = arg_index == UINT_MAX ?
-    next_arg(error) : FormatterBase::get_arg(arg_index - 1, error);
-  if (error)
-    FMT_THROW(FormatError(!*s ? "invalid format string" : error));
-  return arg;
-}
-
-template <typename Char>
-unsigned fmt::internal::PrintfFormatter<Char>::parse_header(
-  const Char *&s, FormatSpec &spec) {
-  unsigned arg_index = UINT_MAX;
-  Char c = *s;
-  if (c >= '0' && c <= '9') {
-    // Parse an argument index (if followed by '$') or a width possibly
-    // preceded with '0' flag(s).
-    unsigned value = parse_nonnegative_int(s);
-    if (*s == '$') {  // value is an argument index
-      ++s;
-      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, s);
-  // Parse width.
-  if (*s >= '0' && *s <= '9') {
-    spec.width_ = parse_nonnegative_int(s);
-  } else if (*s == '*') {
-    ++s;
-    spec.width_ = WidthHandler(spec).visit(get_arg(s));
-  }
-  return arg_index;
-}
-
-template <typename Char>
-void fmt::internal::PrintfFormatter<Char>::format(
-    BasicWriter<Char> &writer, BasicCStringRef<Char> format_str) {
-  const Char *start = format_str.c_str();
-  const Char *s = start;
-  while (*s) {
-    Char c = *s++;
-    if (c != '%') continue;
-    if (*s == c) {
-      write(writer, start, s);
-      start = ++s;
-      continue;
-    }
-    write(writer, start, s - 1);
-
-    FormatSpec spec;
-    spec.align_ = ALIGN_RIGHT;
-
-    // Parse argument index, flags and width.
-    unsigned arg_index = parse_header(s, spec);
-
-    // Parse precision.
-    if (*s == '.') {
-      ++s;
-      if ('0' <= *s && *s <= '9') {
-        spec.precision_ = parse_nonnegative_int(s);
-      } else if (*s == '*') {
-        ++s;
-        spec.precision_ = PrecisionHandler().visit(get_arg(s));
-      }
-    }
-
-    Arg arg = get_arg(s, arg_index);
-    if (spec.flag(HASH_FLAG) && IsZeroInt().visit(arg))
-      spec.flags_ &= ~HASH_FLAG;
-    if (spec.fill_ == '0') {
-      if (arg.type <= Arg::LAST_NUMERIC_TYPE)
-        spec.align_ = ALIGN_NUMERIC;
-      else
-        spec.fill_ = ' ';  // Ignore '0' flag for non-numeric types.
-    }
-
-    // Parse length and convert the argument to the required type.
-    switch (*s++) {
-    case 'h':
-      if (*s == 'h')
-        ArgConverter<signed char>(arg, *++s).visit(arg);
-      else
-        ArgConverter<short>(arg, *s).visit(arg);
-      break;
-    case 'l':
-      if (*s == 'l')
-        ArgConverter<fmt::LongLong>(arg, *++s).visit(arg);
-      else
-        ArgConverter<long>(arg, *s).visit(arg);
-      break;
-    case 'j':
-      ArgConverter<intmax_t>(arg, *s).visit(arg);
-      break;
-    case 'z':
-      ArgConverter<std::size_t>(arg, *s).visit(arg);
-      break;
-    case 't':
-      ArgConverter<std::ptrdiff_t>(arg, *s).visit(arg);
-      break;
-    case 'L':
-      // printf produces garbage when 'L' is omitted for long double, no
-      // need to do the same.
-      break;
-    default:
-      --s;
-      ArgConverter<int>(arg, *s).visit(arg);
-    }
-
-    // Parse type.
-    if (!*s)
-      FMT_THROW(FormatError("invalid format string"));
-    spec.type_ = static_cast<char>(*s++);
-    if (arg.type <= Arg::LAST_INTEGER_TYPE) {
-      // Normalize type.
-      switch (spec.type_) {
-      case 'i': case 'u':
-        spec.type_ = 'd';
-        break;
-      case 'c':
-        // TODO: handle wchar_t
-        CharConverter(arg).visit(arg);
-        break;
-      }
-    }
-
-    start = s;
-
-    // Format argument.
-    internal::PrintfArgFormatter<Char>(writer, spec).visit(arg);
-  }
-  write(writer, start, s);
-}
-
-template <typename Char>
-const Char *fmt::BasicFormatter<Char>::format(
-    const Char *&format_str, const Arg &arg) {
-  const Char *s = format_str;
-  FormatSpec spec;
-  if (*s == ':') {
-    if (arg.type == Arg::CUSTOM) {
-      arg.custom.format(this, arg.custom.value, &s);
-      return s;
-    }
-    ++s;
-    // Parse fill and alignment.
-    if (Char c = *s) {
-      const Char *p = s + 1;
-      spec.align_ = ALIGN_DEFAULT;
-      do {
-        switch (*p) {
-          case '<':
-            spec.align_ = ALIGN_LEFT;
-            break;
-          case '>':
-            spec.align_ = ALIGN_RIGHT;
-            break;
-          case '=':
-            spec.align_ = ALIGN_NUMERIC;
-            break;
-          case '^':
-            spec.align_ = ALIGN_CENTER;
-            break;
-        }
-        if (spec.align_ != ALIGN_DEFAULT) {
-          if (p != s) {
-            if (c == '}') break;
-            if (c == '{')
-              FMT_THROW(FormatError("invalid fill character '{'"));
-            s += 2;
-            spec.fill_ = c;
-          } else ++s;
-          if (spec.align_ == ALIGN_NUMERIC)
-            require_numeric_argument(arg, '=');
-          break;
-        }
-      } while (--p >= s);
-    }
-
-    // Parse sign.
-    switch (*s) {
-      case '+':
-        check_sign(s, arg);
-        spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
-        break;
-      case '-':
-        check_sign(s, arg);
-        spec.flags_ |= MINUS_FLAG;
-        break;
-      case ' ':
-        check_sign(s, arg);
-        spec.flags_ |= SIGN_FLAG;
-        break;
-    }
-
-    if (*s == '#') {
-      require_numeric_argument(arg, '#');
-      spec.flags_ |= HASH_FLAG;
-      ++s;
-    }
-
-    // Parse zero flag.
-    if (*s == '0') {
-      require_numeric_argument(arg, '0');
-      spec.align_ = ALIGN_NUMERIC;
-      spec.fill_ = '0';
-      ++s;
-    }
-    
-    // Parse width.
-    if ('0' <= *s && *s <= '9') {
-      spec.width_ = parse_nonnegative_int(s);
-    } else if (*s == '{') {
-      ++s;
-      Arg width_arg = is_name_start(*s) ?
-            parse_arg_name(s) : parse_arg_index(s);
-      if (*s++ != '}')
-        FMT_THROW(FormatError("invalid format string"));
-      ULongLong value = 0;
-      switch (width_arg.type) {
-      case Arg::INT:
-        if (width_arg.int_value < 0)
-          FMT_THROW(FormatError("negative width"));
-        value = width_arg.int_value;
-        break;
-      case Arg::UINT:
-        value = width_arg.uint_value;
-        break;
-      case Arg::LONG_LONG:
-        if (width_arg.long_long_value < 0)
-          FMT_THROW(FormatError("negative width"));
-        value = width_arg.long_long_value;
-        break;
-      case Arg::ULONG_LONG:
-        value = width_arg.ulong_long_value;
-        break;
-      default:
-        FMT_THROW(FormatError("width is not integer"));
-      }
-      if (value > INT_MAX)
-        FMT_THROW(FormatError("number is too big"));
-      spec.width_ = static_cast<int>(value);
-    }
-
-    // Parse precision.
-    if (*s == '.') {
-      ++s;
-      spec.precision_ = 0;
-      if ('0' <= *s && *s <= '9') {
-        spec.precision_ = parse_nonnegative_int(s);
-      } else if (*s == '{') {
-        ++s;
-        Arg precision_arg =
-            is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
-        if (*s++ != '}')
-          FMT_THROW(FormatError("invalid format string"));
-        ULongLong value = 0;
-        switch (precision_arg.type) {
-          case Arg::INT:
-            if (precision_arg.int_value < 0)
-              FMT_THROW(FormatError("negative precision"));
-            value = precision_arg.int_value;
-            break;
-          case Arg::UINT:
-            value = precision_arg.uint_value;
-            break;
-          case Arg::LONG_LONG:
-            if (precision_arg.long_long_value < 0)
-              FMT_THROW(FormatError("negative precision"));
-            value = precision_arg.long_long_value;
-            break;
-          case Arg::ULONG_LONG:
-            value = precision_arg.ulong_long_value;
-            break;
-          default:
-            FMT_THROW(FormatError("precision is not integer"));
-        }
-        if (value > INT_MAX)
-          FMT_THROW(FormatError("number is too big"));
-        spec.precision_ = static_cast<int>(value);
-      } else {
-        FMT_THROW(FormatError("missing precision specifier"));
-      }
-      if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER) {
-        FMT_THROW(FormatError(
-            fmt::format("precision not allowed in {} format specifier",
-            arg.type == Arg::POINTER ? "pointer" : "integer")));
-      }
-    }
-
-    // Parse type.
-    if (*s != '}' && *s)
-      spec.type_ = static_cast<char>(*s++);
-  }
-
-  if (*s++ != '}')
-    FMT_THROW(FormatError("missing '}' in format string"));
-
-  // Format argument.
-  internal::ArgFormatter<Char>(*this, spec, s - 1).visit(arg);
-  return s;
-}
-
-template <typename Char>
-void fmt::BasicFormatter<Char>::format(BasicCStringRef<Char> format_str) {
-  const Char *s = format_str.c_str();
-  const Char *start = s;
-  while (*s) {
-    Char c = *s++;
-    if (c != '{' && c != '}') continue;
-    if (*s == c) {
-      write(writer_, start, s);
-      start = ++s;
-      continue;
-    }
-    if (c == '}')
-      FMT_THROW(FormatError("unmatched '}' in format string"));
-    write(writer_, start, s - 1);
-    Arg arg = is_name_start(*s) ? parse_arg_name(s) : parse_arg_index(s);
-    start = s = format(s, arg);
-  }
-  write(writer_, start, s);
-}
-
-FMT_FUNC void fmt::report_system_error(
-    int error_code, fmt::StringRef message) FMT_NOEXCEPT {
-  // 'fmt::' is for bcc32.
-  fmt::report_error(internal::format_system_error, error_code, message);
-}
-
-#if FMT_USE_WINDOWS_H
-FMT_FUNC void fmt::report_windows_error(
-    int error_code, fmt::StringRef message) FMT_NOEXCEPT {
-  // 'fmt::' is for bcc32.
-  fmt::report_error(internal::format_windows_error, error_code, message);
-}
-#endif
-
-FMT_FUNC void fmt::print(std::FILE *f, CStringRef format_str, ArgList args) {
-  MemoryWriter w;
-  w.write(format_str, args);
-  std::fwrite(w.data(), 1, w.size(), f);
-}
-
-FMT_FUNC void fmt::print(CStringRef format_str, ArgList args) {
-  print(stdout, format_str, args);
-}
-
-FMT_FUNC void fmt::print(std::ostream &os, CStringRef format_str, ArgList args) {
-  MemoryWriter w;
-  w.write(format_str, args);
-  os.write(w.data(), w.size());
-}
-
-FMT_FUNC void fmt::print_colored(Color c, CStringRef format, ArgList args) {
-  char escape[] = "\x1b[30m";
-  escape[3] = static_cast<char>('0' + c);
-  std::fputs(escape, stdout);
-  print(format, args);
-  std::fputs(RESET_COLOR, stdout);
-}
-
-FMT_FUNC int fmt::fprintf(std::FILE *f, CStringRef format, ArgList args) {
-  MemoryWriter w;
-  printf(w, format, args);
-  std::size_t size = w.size();
-  return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast<int>(size);
-}
-
-#ifndef FMT_HEADER_ONLY
-
-template struct fmt::internal::BasicData<void>;
-
-// Explicit instantiations for char.
-
-template void fmt::internal::FixedBuffer<char>::grow(std::size_t);
-
-template const char *fmt::BasicFormatter<char>::format(
-    const char *&format_str, const fmt::internal::Arg &arg);
-
-template void fmt::BasicFormatter<char>::format(CStringRef format);
-
-template void fmt::internal::PrintfFormatter<char>::format(
-  BasicWriter<char> &writer, CStringRef format);
-
-template int fmt::internal::CharTraits<char>::format_float(
-    char *buffer, std::size_t size, const char *format,
-    unsigned width, int precision, double value);
-
-template int fmt::internal::CharTraits<char>::format_float(
-    char *buffer, std::size_t size, const char *format,
-    unsigned width, int precision, long double value);
-
-// Explicit instantiations for wchar_t.
-
-template void fmt::internal::FixedBuffer<wchar_t>::grow(std::size_t);
-
-template const wchar_t *fmt::BasicFormatter<wchar_t>::format(
-    const wchar_t *&format_str, const fmt::internal::Arg &arg);
-
-template void fmt::BasicFormatter<wchar_t>::format(
-    BasicCStringRef<wchar_t> format);
-
-template void fmt::internal::PrintfFormatter<wchar_t>::format(
-    BasicWriter<wchar_t> &writer, WCStringRef format);
-
-template int fmt::internal::CharTraits<wchar_t>::format_float(
-    wchar_t *buffer, std::size_t size, const wchar_t *format,
-    unsigned width, int precision, double value);
-
-template int fmt::internal::CharTraits<wchar_t>::format_float(
-    wchar_t *buffer, std::size_t size, const wchar_t *format,
-    unsigned width, int precision, long double value);
-
-#endif  // FMT_HEADER_ONLY
-
-#ifdef _MSC_VER
-# pragma warning(pop)
-#endif

--- a/cppformat/format.h	Wed Jun 22 09:38:51 2016 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,3259 +0,0 @@
-/*
- Formatting library for C++
-
- 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.
- */
-
-#ifndef FMT_FORMAT_H_
-#define FMT_FORMAT_H_
-
-#if defined _MSC_VER && _MSC_VER <= 1500
-typedef unsigned int       uint32_t;
-typedef unsigned long long uint64_t;
-typedef long long          intmax_t;
-#else
-#include <stdint.h>
-#endif
-
-#include <cassert>
-#include <cmath>
-#include <cstdio>
-#include <algorithm>
-#include <limits>
-#include <stdexcept>
-#include <string>
-#include <map>
-
-#ifndef FMT_USE_IOSTREAMS
-# define FMT_USE_IOSTREAMS 1
-#endif
-
-#if FMT_USE_IOSTREAMS
-# include <ostream>
-#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 _MSC_VER
-# include <intrin.h>  // _BitScanReverse, _BitScanReverse64
-
-namespace fmt {
-namespace internal {
-# pragma intrinsic(_BitScanReverse)
-inline uint32_t clz(uint32_t x) {
-  unsigned long r = 0;
-  _BitScanReverse(&r, x);
-  return 31 - r;
-}
-# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
-
-# ifdef _WIN64
-#  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
-  return 63 - r;
-}
-# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
-}
-}
-#endif
-
-#ifdef __GNUC__
-# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-# define FMT_GCC_EXTENSION __extension__
-# if FMT_GCC_VERSION >= 406
-#  pragma GCC diagnostic push
-// Disable the warning about "long long" which is sometimes reported even
-// when using __extension__.
-#  pragma GCC diagnostic ignored "-Wlong-long"
-// 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
-# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
-#  define FMT_HAS_GXX_CXX11 1
-# endif
-#else
-# define FMT_GCC_EXTENSION
-#endif
-
-#if defined(__clang__) && !defined(__INTEL_COMPILER)
-# pragma clang diagnostic push
-# pragma clang diagnostic ignored "-Wdocumentation"
-#endif
-
-#ifdef __GNUC_LIBSTD__
-# define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__)
-#endif
-
-#ifdef __has_feature
-# define FMT_HAS_FEATURE(x) __has_feature(x)
-#else
-# define FMT_HAS_FEATURE(x) 0
-#endif
-
-#ifdef __has_builtin
-# define FMT_HAS_BUILTIN(x) __has_builtin(x)
-#else
-# define FMT_HAS_BUILTIN(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
-
-#ifndef FMT_USE_VARIADIC_TEMPLATES
-// Variadic templates are available in GCC since version 4.4
-// (http://gcc.gnu.org/projects/cxx0x.html) and in Visual C++
-// since version 2013.
-# define FMT_USE_VARIADIC_TEMPLATES \
-   (FMT_HAS_FEATURE(cxx_variadic_templates) || \
-       (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800)
-#endif
-
-#ifndef FMT_USE_RVALUE_REFERENCES
-// Don't use rvalue references when compiling with clang and an old libstdc++
-// as the latter doesn't provide std::move.
-# if defined(FMT_GNUC_LIBSTD_VERSION) && FMT_GNUC_LIBSTD_VERSION <= 402
-#  define FMT_USE_RVALUE_REFERENCES 0
-# else
-#  define FMT_USE_RVALUE_REFERENCES \
-    (FMT_HAS_FEATURE(cxx_rvalue_references) || \
-        (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600)
-# endif
-#endif
-
-#if FMT_USE_RVALUE_REFERENCES
-# include <utility>  // for std::move
-#endif
-
-// Define FMT_USE_NOEXCEPT to make C++ Format use noexcept (C++11 feature).
-#ifndef FMT_USE_NOEXCEPT
-# define FMT_USE_NOEXCEPT 0
-#endif
-
-#ifndef FMT_NOEXCEPT
-# if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \
-   (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \
-   _MSC_VER >= 1900
-#  define FMT_NOEXCEPT noexcept
-# else
-#  define FMT_NOEXCEPT throw()
-# endif
-#endif
-
-// A macro to disallow the copy constructor and operator= functions
-// This should be used in the private: declarations for a class
-#ifndef FMT_USE_DELETED_FUNCTIONS
-# define FMT_USE_DELETED_FUNCTIONS 0
-#endif
-
-#if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || \
-  (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800
-# define FMT_DELETED_OR_UNDEFINED  = delete
-# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
-    TypeName(const TypeName&) = delete; \
-    TypeName& operator=(const TypeName&) = delete
-#else
-# define FMT_DELETED_OR_UNDEFINED
-# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
-    TypeName(const TypeName&); \
-    TypeName& operator=(const TypeName&)
-#endif
-
-#ifndef FMT_USE_USER_DEFINED_LITERALS
-// All compilers which support UDLs also support variadic templates. This
-// makes the fmt::literals implementation easier. However, an explicit check
-// for variadic templates is added here just in case.
-# define FMT_USE_USER_DEFINED_LITERALS \
-   FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
-   (FMT_HAS_FEATURE(cxx_user_literals) || \
-       (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1900)
-#endif
-
-#ifndef FMT_ASSERT
-# define FMT_ASSERT(condition, message) assert((condition) && message)
-#endif
-
-namespace fmt {
-namespace internal {
-struct DummyInt {
-  int data[2];
-  operator int() const { return 0; }
-};
-typedef std::numeric_limits<fmt::internal::DummyInt> FPUtil;
-
-// Dummy implementations of system functions such as signbit and ecvt called
-// if the latter are not available.
-inline DummyInt signbit(...) { return DummyInt(); }
-inline DummyInt _ecvt_s(...) { return DummyInt(); }
-inline DummyInt isinf(...) { return DummyInt(); }
-inline DummyInt _finite(...) { return DummyInt(); }
-inline DummyInt isnan(...) { return DummyInt(); }
-inline DummyInt _isnan(...) { return DummyInt(); }
-
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-template <typename T>
-inline T check(T value) { return value; }
-}
-}  // namespace fmt
-
-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::DummyInt> :
-    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 (check(sizeof(isinf(x)) == sizeof(bool) ||
-              sizeof(isinf(x)) == sizeof(int))) {
-      return !!isinf(x);
-    }
-    return !_finite(static_cast<double>(x));
-  }
-
-  // Portable version of isnan.
-  template <typename T>
-  static bool isnotanumber(T x) {
-    using namespace fmt::internal;
-    if (check(sizeof(isnan(x)) == sizeof(bool) ||
-              sizeof(isnan(x)) == sizeof(int))) {
-      return !!isnan(x);
-    }
-    return _isnan(static_cast<double>(x)) != 0;
-  }
-
-  // Portable version of signbit.
-  static bool isnegative(double x) {
-    using namespace fmt::internal;
-    if (check(sizeof(signbit(x)) == sizeof(int)))
-      return !!signbit(x);
-    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
-
-namespace fmt {
-
-// Fix the warning about long long on older versions of GCC
-// that don't support the diagnostic pragma.
-FMT_GCC_EXTENSION typedef long long LongLong;
-FMT_GCC_EXTENSION typedef unsigned long long ULongLong;
-
-#if FMT_USE_RVALUE_REFERENCES
-using std::move;
-#endif
-
-template <typename Char>
-class BasicWriter;
-
-typedef BasicWriter<char> Writer;
-typedef BasicWriter<wchar_t> WWriter;
-
-template <typename Char>
-class BasicFormatter;
-
-template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value);
-
-/**
-  \rst
-  A string reference. 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              |
-  +============+=========================+
-  | StringRef  | BasicStringRef<char>    |
-  +------------+-------------------------+
-  | WStringRef | BasicStringRef<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(StringRef format_str, const Args & ... args);
-
-    format("{}", 42);
-    format(std::string("{}"), 42);
-  \endrst
- */
-template <typename Char>
-class BasicStringRef {
- private:
-  const Char *data_;
-  std::size_t size_;
-
- public:
-  /** Constructs a string reference object from a C string and a size. */
-  BasicStringRef(const Char *s, std::size_t size) : data_(s), size_(size) {}
-
-  /**
-    \rst
-    Constructs a string reference object from a C string computing
-    the size with ``std::char_traits<Char>::length``.
-    \endrst
-   */
-  BasicStringRef(const Char *s)
-    : data_(s), size_(std::char_traits<Char>::length(s)) {}
-
-  /**
-    \rst
-    Constructs a string reference from an ``std::string`` object.
-    \endrst
-   */
-  BasicStringRef(const std::basic_string<Char> &s)
-  : data_(s.c_str()), size_(s.size()) {}
-
-  /**
-    \rst
-    Converts a string reference to an ``std::string`` object.
-    \endrst
-   */
-  std::basic_string<Char> to_string() const {
-    return std::basic_string<Char>(data_, size_);
-  }
-
-  /** Returns the pointer to a C string. */
-  const Char *data() const { return data_; }
-
-  /** Returns the string size. */
-  std::size_t size() const { return size_; }
-
-  // Lexicographically compare this string reference to other.
-  int compare(BasicStringRef other) const {
-    std::size_t size = std::min(size_, other.size_);
-    int result = std::char_traits<Char>::compare(data_, other.data_, size);
-    if (result == 0)
-      result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
-    return result;
-  }
-
-  friend bool operator==(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.compare(rhs) == 0;
-  }
-  friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.compare(rhs) != 0;
-  }
-  friend bool operator<(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.compare(rhs) < 0;
-  }
-  friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.compare(rhs) <= 0;
-  }
-  friend bool operator>(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.compare(rhs) > 0;
-  }
-  friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs) {
-    return lhs.compare(rhs) >= 0;
-  }
-};
-
-typedef BasicStringRef<char> StringRef;
-typedef BasicStringRef<wchar_t> WStringRef;
-
-/**
-  \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               |
-  +=============+==========================+
-  | CStringRef  | BasicCStringRef<char>    |
-  +-------------+--------------------------+
-  | WCStringRef | BasicCStringRef<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(CStringRef format_str, const Args & ... args);
-
-    format("{}", 42);
-    format(std::string("{}"), 42);
-  \endrst
- */
-template <typename Char>
-class BasicCStringRef {
- private:
-  const Char *data_;
-
- public:
-  /** Constructs a string reference object from a C string. */
-  BasicCStringRef(const Char *s) : data_(s) {}
-
-  /**
-    \rst
-    Constructs a string reference from an ``std::string`` object.
-    \endrst
-   */
-  BasicCStringRef(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 BasicCStringRef<char> CStringRef;
-typedef BasicCStringRef<wchar_t> WCStringRef;
-
-/**
-  A formatting error such as invalid format string.
-*/
-class FormatError : public std::runtime_error {
- public:
-  explicit FormatError(CStringRef message)
-  : std::runtime_error(message.c_str()) {}
-};
-
-namespace internal {
-// The number of characters to store in the MemoryBuffer object itself
-// to avoid dynamic memory allocation.
-enum { INLINE_BUFFER_SIZE = 500 };
-
-#if FMT_SECURE_SCL
-// Use checked iterator to avoid warnings on MSVC.
-template <typename T>
-inline stdext::checked_array_iterator<T*> make_ptr(T *ptr, std::size_t size) {
-  return stdext::checked_array_iterator<T*>(ptr, size);
-}
-#else
-template <typename T>
-inline T *make_ptr(T *ptr, std::size_t) { return ptr; }
-#endif
-}  // namespace internal
-
-/**
-  \rst
-  A buffer supporting a subset of ``std::vector``'s operations.
-  \endrst
- */
-template <typename T>
-class Buffer {
- private:
-  FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
-
- protected:
-  T *ptr_;
-  std::size_t size_;
-  std::size_t capacity_;
-
-  Buffer(T *ptr = 0, std::size_t capacity = 0)
-    : ptr_(ptr), size_(0), capacity_(capacity) {}
-
-  /**
-    \rst
-    Increases the buffer capacity to hold at least *size* elements updating
-    ``ptr_`` and ``capacity_``.
-    \endrst
-   */
-  virtual void grow(std::size_t size) = 0;
-
- public:
-  virtual ~Buffer() {}
-
-  /** Returns the size of this buffer. */
-  std::size_t size() const { return size_; }
-
-  /** Returns the capacity of this buffer. */
-  std::size_t capacity() const { return capacity_; }
-
-  /**
-    Resizes the buffer. If T is a POD type new elements may not be initialized.
-   */
-  void resize(std::size_t new_size) {
-    if (new_size > capacity_)
-      grow(new_size);
-    size_ = new_size;
-  }
-
-  /**
-    \rst
-    Reserves space to store at least *capacity* elements.
-    \endrst
-   */
-  void reserve(std::size_t capacity) {
-    if (capacity > capacity_)
-      grow(capacity);
-  }
-
-  void clear() FMT_NOEXCEPT { size_ = 0; }
-
-  void push_back(const T &value) {
-    if (size_ == capacity_)
-      grow(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]; }
-};
-
-template <typename T>
-template <typename U>
-void Buffer<T>::append(const U *begin, const U *end) {
-  assert(begin <= end);
-  std::size_t new_size = size_ + (end - begin);
-  if (new_size > capacity_)
-    grow(new_size);
-  std::copy(begin, end, internal::make_ptr(ptr_, capacity_) + size_);
-  size_ = new_size;
-}
-
-namespace internal {
-
-// A memory buffer for POD types with the first SIZE elements stored in
-// the object itself.
-template <typename T, std::size_t SIZE, typename Allocator = std::allocator<T> >
-class MemoryBuffer : private Allocator, public Buffer<T> {
- private:
-  T data_[SIZE];
-
-  // Deallocate memory allocated by the buffer.
-  void deallocate() {
-    if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_);
-  }
-
- protected:
-  void grow(std::size_t size);
-
- public:
-  explicit MemoryBuffer(const Allocator &alloc = Allocator())
-      : Allocator(alloc), Buffer<T>(data_, SIZE) {}
-  ~MemoryBuffer() { deallocate(); }
-
-#if FMT_USE_RVALUE_REFERENCES
- private:
-  // Move data from other to this buffer.
-  void move(MemoryBuffer &other) {
-    Allocator &this_alloc = *this, &other_alloc = other;
-    this_alloc = std::move(other_alloc);
-    this->size_ = other.size_;
-    this->capacity_ = other.capacity_;
-    if (other.ptr_ == other.data_) {
-      this->ptr_ = data_;
-      std::copy(other.data_,
-                other.data_ + this->size_, make_ptr(data_, this->capacity_));
-    } else {
-      this->ptr_ = other.ptr_;
-      // Set pointer to the inline array so that delete is not called
-      // when deallocating.
-      other.ptr_ = other.data_;
-    }
-  }
-
- public:
-  MemoryBuffer(MemoryBuffer &&other) {
-    move(other);
-  }
-
-  MemoryBuffer &operator=(MemoryBuffer &&other) {
-    assert(this != &other);
-    deallocate();
-    move(other);
-    return *this;
-  }
-#endif
-
-  // 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 MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size) {
-  std::size_t new_capacity =
-      (std::max)(size, this->capacity_ + this->capacity_ / 2);
-  T *new_ptr = this->allocate(new_capacity);
-  // The following code doesn't throw, so the raw pointer above doesn't leak.
-  std::copy(this->ptr_,
-            this->ptr_ + this->size_, make_ptr(new_ptr, new_capacity));
-  std::size_t old_capacity = this->capacity_;
-  T *old_ptr = this->ptr_;
-  this->capacity_ = new_capacity;
-  this->ptr_ = new_ptr;
-  // deallocate may throw (at least in principle), but it doesn't matter since
-  // the buffer already uses the new storage and will deallocate it in case
-  // of exception.
-  if (old_ptr != data_)
-    Allocator::deallocate(old_ptr, old_capacity);
-}
-
-// A fixed-size buffer.
-template <typename Char>
-class FixedBuffer : public fmt::Buffer<Char> {
- public:
-  FixedBuffer(Char *array, std::size_t size) : fmt::Buffer<Char>(array, size) {}
-
- protected:
-  void grow(std::size_t size);
-};
-
-template <typename Char>
-class BasicCharTraits {
- public:
-#if FMT_SECURE_SCL
-  typedef stdext::checked_array_iterator<Char*> CharPtr;
-#else
-  typedef Char *CharPtr;
-#endif
-  static Char cast(wchar_t value) { return static_cast<Char>(value); }
-};
-
-template <typename Char>
-class CharTraits;
-
-template <>
-class CharTraits<char> : public BasicCharTraits<char> {
- private:
-  // Conversion from wchar_t to char is not allowed.
-  static char convert(wchar_t);
-
- public:
-  static char convert(char value) { return value; }
-
-  // Formats a floating-point number.
-  template <typename T>
-  static int format_float(char *buffer, std::size_t size,
-      const char *format, unsigned width, int precision, T value);
-};
-
-template <>
-class CharTraits<wchar_t> : public BasicCharTraits<wchar_t> {
- public:
-  static wchar_t convert(char value) { return value; }
-  static wchar_t convert(wchar_t value) { return value; }
-
-  template <typename T>
-  static int format_float(wchar_t *buffer, std::size_t size,
-      const wchar_t *format, unsigned width, int precision, T value);
-};
-
-// Checks if a number is negative - used to avoid warnings.
-template <bool IsSigned>
-struct SignChecker {
-  template <typename T>
-  static bool is_negative(T value) { return value < 0; }
-};
-
-template <>
-struct SignChecker<false> {
-  template <typename T>
-  static bool is_negative(T) { return false; }
-};
-
-// 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>
-inline bool is_negative(T value) {
-  return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
-}
-
-// Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise.
-template <bool FitsIn32Bits>
-struct TypeSelector { typedef uint32_t Type; };
-
-template <>
-struct TypeSelector<false> { typedef uint64_t Type; };
-
-template <typename T>
-struct IntTraits {
-  // Smallest of uint32_t and uint64_t that is large enough to represent
-  // all values of T.
-  typedef typename
-    TypeSelector<std::numeric_limits<T>::digits <= 32>::Type MainType;
-};
-
-// MakeUnsigned<T>::Type gives an unsigned type corresponding to integer type T.
-template <typename T>
-struct MakeUnsigned { typedef T Type; };
-
-#define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \
-  template <> \
-  struct MakeUnsigned<T> { typedef U Type; }
-
-FMT_SPECIALIZE_MAKE_UNSIGNED(char, unsigned char);
-FMT_SPECIALIZE_MAKE_UNSIGNED(signed char, unsigned char);
-FMT_SPECIALIZE_MAKE_UNSIGNED(short, unsigned short);
-FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned);
-FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long);
-FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong);
-
-void report_unknown_type(char code, const char *type);
-
-// Static data is placed in this class template to allow header-only
-// configuration.
-template <typename T = void>
-struct BasicData {
-  static const uint32_t POWERS_OF_10_32[];
-  static const uint64_t POWERS_OF_10_64[];
-  static const char DIGITS[];
-};
-
-typedef BasicData<> Data;
-
-#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
-
-#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.
-  unsigned t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
-  return 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
-
-#ifdef FMT_BUILTIN_CLZ
-// Optional version of count_digits for better performance on 32-bit platforms.
-inline unsigned count_digits(uint32_t n) {
-  uint32_t t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
-  return t - (n < Data::POWERS_OF_10_32[t]) + 1;
-}
-#endif
-
-// Formats a decimal unsigned integer value writing into buffer.
-template <typename UInt, typename Char>
-inline void format_decimal(Char *buffer, UInt value, unsigned num_digits) {
-  buffer += num_digits;
-  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];
-    *--buffer = Data::DIGITS[index];
-  }
-  if (value < 10) {
-    *--buffer = static_cast<char>('0' + value);
-    return;
-  }
-  unsigned index = static_cast<unsigned>(value * 2);
-  *--buffer = Data::DIGITS[index + 1];
-  *--buffer = Data::DIGITS[index];
-}
-
-#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 UTF8ToUTF16 {
- private:
-  MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
-
- public:
-  explicit UTF8ToUTF16(StringRef s);
-  operator WStringRef() const { return WStringRef(&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 UTF16ToUTF8 {
- private:
-  MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
-
- public:
-  UTF16ToUTF8() {}
-  explicit UTF16ToUTF8(WStringRef s);
-  operator StringRef() const { return StringRef(&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.
-  int convert(WStringRef s);
-};
-
-void format_windows_error(fmt::Writer &out, int error_code,
-                          fmt::StringRef message) FMT_NOEXCEPT;
-#endif
-
-void format_system_error(fmt::Writer &out, int error_code,
-                         fmt::StringRef message) FMT_NOEXCEPT;
-
-// A formatting argument value.
-struct Value {
-  template <typename Char>
-  struct StringValue {
-    const Char *value;
-    std::size_t size;
-  };
-
-  typedef void (*FormatFunc)(
-      void *formatter, const void *arg, void *format_str_ptr);
-
-  struct CustomValue {
-    const void *value;
-    FormatFunc format;
-  };
-
-  union {
-    int int_value;
-    unsigned uint_value;
-    LongLong long_long_value;
-    ULongLong ulong_long_value;
-    double double_value;
-    long double long_double_value;
-    const void *pointer;
-    StringValue<char> string;
-    StringValue<signed char> sstring;
-    StringValue<unsigned char> ustring;
-    StringValue<wchar_t> wstring;
-    CustomValue custom;
-  };
-
-  enum Type {
-    NONE, NAMED_ARG,
-    // Integer types should go first,
-    INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR,
-    // followed by floating-point types.
-    DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE,
-    CSTRING, STRING, WSTRING, POINTER, CUSTOM
-  };
-};
-
-// A formatting argument. It is a POD type to allow storage in
-// internal::MemoryBuffer.
-struct Arg : Value {
-  Type type;
-};
-
-template <typename Char>
-struct NamedArg;
-
-template <typename T = void>
-struct Null {};
-
-// A helper class template to enable or disable overloads taking wide
-// characters and strings in MakeValue.
-template <typename T, typename Char>
-struct WCharHelper {
-  typedef Null<T> Supported;
-  typedef T Unsupported;
-};
-
-template <typename T>
-struct WCharHelper<T, wchar_t> {
-  typedef T Supported;
-  typedef Null<T> Unsupported;
-};
-
-typedef char Yes[1];
-typedef char No[2];
-
-// These are non-members to workaround an overload resolution bug in bcc32.
-Yes &convert(fmt::ULongLong);
-Yes &convert(std::ostream &);
-No &convert(...);
-
-template <typename T>
-T &get();
-
-struct DummyStream : std::ostream {
-  // Hide all operator<< overloads from std::ostream.
-  void operator<<(Null<>);
-};
-
-No &operator<<(std::ostream &, int);
-
-template<typename T, bool ENABLE_CONVERSION>
-struct ConvertToIntImpl {
-  enum { value = false };
-};
-
-template<typename T>
-struct ConvertToIntImpl<T, true> {
-  // Convert to int only if T doesn't have an overloaded operator<<.
-  enum {
-    value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
-  };
-};
-
-template<typename T, bool ENABLE_CONVERSION>
-struct ConvertToIntImpl2 {
-  enum { value = false };
-};
-
-template<typename T>
-struct ConvertToIntImpl2<T, true> {
-  enum {
-    // Don't convert numeric types.
-    value = ConvertToIntImpl<T, !std::numeric_limits<T>::is_specialized>::value
-  };
-};
-
-template<typename T>
-struct ConvertToInt {
-  enum { enable_conversion = sizeof(convert(get<T>())) == sizeof(Yes) };
-  enum { value = ConvertToIntImpl2<T, enable_conversion>::value };
-};
-
-#define FMT_DISABLE_CONVERSION_TO_INT(Type) \
-  template <> \
-  struct ConvertToInt<Type> {  enum { value = 0 }; }
-
-// Silence warnings about convering float to int.
-FMT_DISABLE_CONVERSION_TO_INT(float);
-FMT_DISABLE_CONVERSION_TO_INT(double);
-FMT_DISABLE_CONVERSION_TO_INT(long double);
-
-template<bool B, class T = void>
-struct EnableIf {};
-
-template<class T>
-struct EnableIf<true, T> { typedef T type; };
-
-template<bool B, class T, class F>
-struct Conditional { typedef T type; };
-
-template<class T, class F>
-struct Conditional<false, T, F> { typedef F type; };
-
-// For bcc32 which doesn't understand ! in template arguments.
-template<bool>
-struct Not { enum { value = 0 }; };
-
-template<>
-struct Not<false> { enum { value = 1 }; };
-
-// Makes an Arg object from any type.
-template <typename Char>
-class MakeValue : public Arg {
- private:
-  // The following two methods are private to disallow formatting of
-  // arbitrary pointers. 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.
-  // Do not implement!
-  template <typename T>
-  MakeValue(const T *value);
-  template <typename T>
-  MakeValue(T *value);
-
-  // The following methods are private to disallow formatting of wide
-  // characters and strings into narrow strings as in
-  //   fmt::format("{}", L"test");
-  // To fix this, use a wide format string: fmt::format(L"{}", L"test").
-#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
-  MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
-#endif
-  MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
-  MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
-  MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
-  MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
-
-  void set_string(StringRef str) {
-    string.value = str.data();
-    string.size = str.size();
-  }
-
-  void set_string(WStringRef str) {
-    wstring.value = str.data();
-    wstring.size = str.size();
-  }
-
-  // Formats an argument of a custom type, such as a user-defined class.
-  template <typename T>
-  static void format_custom_arg(
-      void *formatter, const void *arg, void *format_str_ptr) {
-    format(*static_cast<BasicFormatter<Char>*>(formatter),
-           *static_cast<const Char**>(format_str_ptr),
-           *static_cast<const T*>(arg));
-  }
-
- public:
-  MakeValue() {}
-
-#define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \
-  MakeValue(Type value) { field = rhs; } \
-  static uint64_t type(Type) { return Arg::TYPE; }
-
-#define FMT_MAKE_VALUE(Type, field, TYPE) \
-  FMT_MAKE_VALUE_(Type, field, TYPE, value)
-
-  FMT_MAKE_VALUE(bool, int_value, BOOL)
-  FMT_MAKE_VALUE(short, int_value, INT)
-  FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
-  FMT_MAKE_VALUE(int, int_value, INT)
-  FMT_MAKE_VALUE(unsigned, uint_value, UINT)
-
-  MakeValue(long value) {
-    // 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.
-    if (check(sizeof(long) == sizeof(int)))
-      int_value = static_cast<int>(value);
-    else
-      long_long_value = value;
-  }
-  static uint64_t type(long) {
-    return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
-  }
-
-  MakeValue(unsigned long value) {
-    if (check(sizeof(unsigned long) == sizeof(unsigned)))
-      uint_value = static_cast<unsigned>(value);
-    else
-      ulong_long_value = value;
-  }
-  static uint64_t type(unsigned long) {
-    return sizeof(unsigned long) == sizeof(unsigned) ?
-          Arg::UINT : Arg::ULONG_LONG;
-  }
-
-  FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
-  FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
-  FMT_MAKE_VALUE(float, double_value, DOUBLE)
-  FMT_MAKE_VALUE(double, double_value, DOUBLE)
-  FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
-  FMT_MAKE_VALUE(signed char, int_value, INT)
-  FMT_MAKE_VALUE(unsigned char, uint_value, UINT)
-  FMT_MAKE_VALUE(char, int_value, CHAR)
-
-#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
-  MakeValue(typename WCharHelper<wchar_t, Char>::Supported value) {
-    int_value = value;
-  }
-  static uint64_t type(wchar_t) { return Arg::CHAR; }
-#endif
-
-#define FMT_MAKE_STR_VALUE(Type, TYPE) \
-  MakeValue(Type value) { set_string(value); } \
-  static uint64_t type(Type) { return Arg::TYPE; }
-
-  FMT_MAKE_VALUE(char *, string.value, CSTRING)
-  FMT_MAKE_VALUE(const char *, string.value, CSTRING)
-  FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
-  FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
-  FMT_MAKE_STR_VALUE(const std::string &, STRING)
-  FMT_MAKE_STR_VALUE(StringRef, STRING)
-  FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
-
-#define FMT_MAKE_WSTR_VALUE(Type, TYPE) \
-  MakeValue(typename WCharHelper<Type, Char>::Supported value) { \
-    set_string(value); \
-  } \
-  static uint64_t type(Type) { return Arg::TYPE; }
-
-  FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
-  FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
-  FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
-  FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
-
-  FMT_MAKE_VALUE(void *, pointer, POINTER)
-  FMT_MAKE_VALUE(const void *, pointer, POINTER)
-
-  template <typename T>
-  MakeValue(const T &value,
-            typename EnableIf<Not<
-              ConvertToInt<T>::value>::value, int>::type = 0) {
-    custom.value = &value;
-    custom.format = &format_custom_arg<T>;
-  }
-
-  template <typename T>
-  MakeValue(const T &value,
-            typename EnableIf<ConvertToInt<T>::value, int>::type = 0) {
-    int_value = value;
-  }
-
-  template <typename T>
-  static uint64_t type(const T &) {
-    return ConvertToInt<T>::value ? Arg::INT : Arg::CUSTOM;
-  }
-
-  // Additional template param `Char_` is needed here because make_type always
-  // uses MakeValue<char>.
-  template <typename Char_>
-  MakeValue(const NamedArg<Char_> &value) { pointer = &value; }
-
-  template <typename Char_>
-  static uint64_t type(const NamedArg<Char_> &) { return Arg::NAMED_ARG; }
-};
-
-template <typename Char>
-struct NamedArg : Arg {
-  BasicStringRef<Char> name;
-
-  template <typename T>
-  NamedArg(BasicStringRef<Char> argname, const T &value)
-  : Arg(MakeValue<Char>(value)), name(argname) {
-    type = static_cast<internal::Arg::Type>(MakeValue<Char>::type(value));
-  }
-};
-
-#define FMT_DISPATCH(call) static_cast<Impl*>(this)->call
-
-// An argument visitor.
-// To use ArgVisitor define a subclass that implements some or all of the
-// visit methods with the same signatures as the methods in ArgVisitor,
-// for example, visit_int(int).
-// Specify the subclass name as the Impl template parameter. Then calling
-// ArgVisitor::visit for some argument will dispatch to a visit method
-// specific to the argument type. For example, if the argument type is
-// double then visit_double(double) method of a subclass will be called.
-// If the subclass doesn't contain a method with this signature, then
-// a corresponding method of ArgVisitor will be called.
-//
-// Example:
-//  class MyArgVisitor : public ArgVisitor<MyArgVisitor, void> {
-//   public:
-//    void visit_int(int value) { print("{}", value); }
-//    void visit_double(double value) { print("{}", value ); }
-//  };
-//
-// ArgVisitor uses the curiously recurring template pattern:
-// http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern
-template <typename Impl, typename Result>
-class ArgVisitor {
- public:
-  void report_unhandled_arg() {}
-
-  Result visit_unhandled_arg() {
-    FMT_DISPATCH(report_unhandled_arg());
-    return Result();
-  }
-
-  Result visit_int(int value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_long_long(LongLong value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_uint(unsigned value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_ulong_long(ULongLong value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_bool(bool value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  Result visit_char(int value) {
-    return FMT_DISPATCH(visit_any_int(value));
-  }
-  template <typename T>
-  Result visit_any_int(T) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-
-  Result visit_double(double value) {
-    return FMT_DISPATCH(visit_any_double(value));
-  }
-  Result visit_long_double(long double value) {
-    return FMT_DISPATCH(visit_any_double(value));
-  }
-  template <typename T>
-  Result visit_any_double(T) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-
-  Result visit_cstring(const char *) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_string(Arg::StringValue<char>) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_wstring(Arg::StringValue<wchar_t>) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_pointer(const void *) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-  Result visit_custom(Arg::CustomValue) {
-    return FMT_DISPATCH(visit_unhandled_arg());
-  }
-
-  Result visit(const Arg &arg) {
-    switch (arg.type) {
-    default:
-      FMT_ASSERT(false, "invalid argument type");
-      return Result();
-    case Arg::INT:
-      return FMT_DISPATCH(visit_int(arg.int_value));
-    case Arg::UINT:
-      return FMT_DISPATCH(visit_uint(arg.uint_value));
-    case Arg::LONG_LONG:
-      return FMT_DISPATCH(visit_long_long(arg.long_long_value));
-    case Arg::ULONG_LONG:
-      return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
-    case Arg::BOOL:
-      return FMT_DISPATCH(visit_bool(arg.int_value != 0));
-    case Arg::CHAR:
-      return FMT_DISPATCH(visit_char(arg.int_value));
-    case Arg::DOUBLE:
-      return FMT_DISPATCH(visit_double(arg.double_value));
-    case Arg::LONG_DOUBLE:
-      return FMT_DISPATCH(visit_long_double(arg.long_double_value));
-    case Arg::CSTRING:
-      return FMT_DISPATCH(visit_cstring(arg.string.value));
-    case Arg::STRING:
-      return FMT_DISPATCH(visit_string(arg.string));
-    case Arg::WSTRING:
-      return FMT_DISPATCH(visit_wstring(arg.wstring));
-    case Arg::POINTER:
-      return FMT_DISPATCH(visit_pointer(arg.pointer));
-    case Arg::CUSTOM:
-      return FMT_DISPATCH(visit_custom(arg.custom));
-    }
-  }
-};
-
-class RuntimeError : public std::runtime_error {
- protected:
-  RuntimeError() : std::runtime_error("") {}
-};
-
-template <typename Impl, typename Char>
-class BasicArgFormatter;
-
-template <typename Char>
-class PrintfArgFormatter;
-
-template <typename Char>
-class ArgMap;
-}  // namespace internal
-
-/** An argument list. */
-class ArgList {
- private:
-  // To reduce compiled code size per formatting function call, types of first
-  // MAX_PACKED_ARGS arguments are passed in the types_ field.
-  uint64_t 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 internal::Arg *args_;
-  };
-
-  internal::Arg::Type type(unsigned index) const {
-    unsigned shift = index * 4;
-    uint64_t mask = 0xf;
-    return static_cast<internal::Arg::Type>(
-          (types_ & (mask << shift)) >> shift);
-  }
-
-  template <typename Char>
-  friend class internal::ArgMap;
-
- public:
-  // Maximum number of arguments with packed types.
-  enum { MAX_PACKED_ARGS = 16 };
-
-  ArgList() : types_(0) {}
-
-  ArgList(ULongLong types, const internal::Value *values)
-  : types_(types), values_(values) {}
-  ArgList(ULongLong types, const internal::Arg *args)
-  : types_(types), args_(args) {}
-
-  /** Returns the argument at specified index. */
-  internal::Arg operator[](unsigned index) const {
-    using internal::Arg;
-    Arg arg;
-    bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
-    if (index < MAX_PACKED_ARGS) {
-      Arg::Type arg_type = type(index);
-      internal::Value &val = arg;
-      if (arg_type != Arg::NONE)
-        val = use_values ? values_[index] : args_[index];
-      arg.type = arg_type;
-      return arg;
-    }
-    if (use_values) {
-      // The index is greater than the number of arguments that can be stored
-      // in values, so return a "none" argument.
-      arg.type = Arg::NONE;
-      return arg;
-    }
-    for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) {
-      if (args_[i].type == Arg::NONE)
-        return args_[i];
-    }
-    return args_[index];
-  }
-};
-
-struct FormatSpec;
-
-namespace internal {
-
-template <typename Char>
-class ArgMap {
- private:
-  typedef std::map<fmt::BasicStringRef<Char>, internal::Arg> MapType;
-  typedef typename MapType::value_type Pair;
-
-  MapType map_;
-
- public:
-  void init(const ArgList &args);
-
-  const internal::Arg* find(const fmt::BasicStringRef<Char> &name) const {
-    typename MapType::const_iterator it = map_.find(name);
-    return it != map_.end() ? &it->second : 0;
-  }
-};
-
-class FormatterBase {
- private:
-  ArgList args_;
-  int next_arg_index_;
-
-  // Returns the argument with specified index.
-  Arg do_get_arg(unsigned arg_index, const char *&error);
-
- protected:
-  const ArgList &args() const { return args_; }
-
-  explicit FormatterBase(const ArgList &args) {
-    args_ = args;
-    next_arg_index_ = 0;
-  }
-
-  // Returns the next argument.
-  Arg next_arg(const char *&error);
-
-  // Checks if manual indexing is used and returns the argument with
-  // specified index.
-  Arg get_arg(unsigned arg_index, const char *&error);
-
-  bool check_no_auto_index(const char *&error);
-
-  template <typename Char>
-  void write(BasicWriter<Char> &w, const Char *start, const Char *end) {
-    if (start != end)
-      w << BasicStringRef<Char>(start, end - start);
-  }
-};
-
-// A printf formatter.
-template <typename Char>
-class PrintfFormatter : private FormatterBase {
- private:
-  void parse_flags(FormatSpec &spec, const Char *&s);
-
-  // Returns the argument with specified index or, if arg_index is equal
-  // to the maximum unsigned value, the next argument.
-  Arg get_arg(const Char *s,
-      unsigned arg_index = (std::numeric_limits<unsigned>::max)());
-
-  // Parses argument index, flags and width and returns the argument index.
-  unsigned parse_header(const Char *&s, FormatSpec &spec);
-
- public:
-  explicit PrintfFormatter(const ArgList &args) : FormatterBase(args) {}
-  void format(BasicWriter<Char> &writer, BasicCStringRef<Char> format_str);
-};
-}  // namespace internal
-
-// A formatter.
-template <typename Char>
-class BasicFormatter : private internal::FormatterBase {
- private:
-  BasicWriter<Char> &writer_;
-  internal::ArgMap<Char> map_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
-
-  using internal::FormatterBase::get_arg;
-
-  // Checks if manual indexing is used and returns the argument with
-  // specified name.
-  internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
-
-  // Parses argument index and returns corresponding argument.
-  internal::Arg parse_arg_index(const Char *&s);
-
-  // Parses argument name and returns corresponding argument.
-  internal::Arg parse_arg_name(const Char *&s);
-
- public:
-  BasicFormatter(const ArgList &args, BasicWriter<Char> &w)
-    : internal::FormatterBase(args), writer_(w) {}
-
-  BasicWriter<Char> &writer() { return writer_; }
-
-  void format(BasicCStringRef<Char> format_str);
-
-  const Char *format(const Char *&format_str, const internal::Arg &arg);
-};
-
-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,
-  CHAR_FLAG = 0x10  // Argument has char type - used in error reporting.
-};
-
-// An empty format specifier.
-struct EmptySpec {};
-
-// A type specifier.
-template <char TYPE>
-struct TypeSpec : EmptySpec {
-  Alignment align() const { return ALIGN_DEFAULT; }
-  unsigned width() const { return 0; }
-  int precision() const { return -1; }
-  bool flag(unsigned) const { return false; }
-  char type() const { return TYPE; }
-  char fill() const { return ' '; }
-};
-
-// A width specifier.
-struct WidthSpec {
-  unsigned width_;
-  // Fill is always wchar_t and cast to char if necessary to avoid having
-  // two specialization of WidthSpec and its subclasses.
-  wchar_t fill_;
-
-  WidthSpec(unsigned width, wchar_t fill) : width_(width), fill_(fill) {}
-
-  unsigned width() const { return width_; }
-  wchar_t fill() const { return fill_; }
-};
-
-// An alignment specifier.
-struct AlignSpec : WidthSpec {
-  Alignment align_;
-
-  AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
-  : WidthSpec(width, fill), align_(align) {}
-
-  Alignment align() const { return align_; }
-
-  int precision() const { return -1; }
-};
-
-// An alignment and type specifier.
-template <char TYPE>
-struct AlignTypeSpec : AlignSpec {
-  AlignTypeSpec(unsigned width, wchar_t fill) : AlignSpec(width, fill) {}
-
-  bool flag(unsigned) const { return false; }
-  char type() const { return TYPE; }
-};
-
-// A full format specifier.
-struct FormatSpec : AlignSpec {
-  unsigned flags_;
-  int precision_;
-  char type_;
-
-  FormatSpec(
-    unsigned width = 0, char type = 0, wchar_t fill = ' ')
-  : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type) {}
-
-  bool flag(unsigned f) const { return (flags_ & f) != 0; }
-  int precision() const { return precision_; }
-  char type() const { return type_; }
-};
-
-// An integer format specifier.
-template <typename T, typename SpecT = TypeSpec<0>, typename Char = char>
-class IntFormatSpec : public SpecT {
- private:
-  T value_;
-
- public:
-  IntFormatSpec(T val, const SpecT &spec = SpecT())
-  : SpecT(spec), value_(val) {}
-
-  T value() const { return value_; }
-};
-
-// A string format specifier.
-template <typename Char>
-class StrFormatSpec : public AlignSpec {
- private:
-  const Char *str_;
-
- public:
-  template <typename FillChar>
-  StrFormatSpec(const Char *str, unsigned width, FillChar fill)
-  : AlignSpec(width, fill), str_(str) {
-    internal::CharTraits<Char>::convert(FillChar());
-  }
-
-  const Char *str() const { return str_; }
-};
-
-/**
-  Returns an integer format specifier to format the value in base 2.
- */
-IntFormatSpec<int, TypeSpec<'b'> > bin(int value);
-
-/**
-  Returns an integer format specifier to format the value in base 8.
- */
-IntFormatSpec<int, TypeSpec<'o'> > oct(int value);
-
-/**
-  Returns an integer format specifier to format the value in base 16 using
-  lower-case letters for the digits above 9.
- */
-IntFormatSpec<int, TypeSpec<'x'> > hex(int value);
-
-/**
-  Returns an integer formatter format specifier to format in base 16 using
-  upper-case letters for the digits above 9.
- */
-IntFormatSpec<int, TypeSpec<'X'> > hexu(int value);
-
-/**
-  \rst
-  Returns an integer format specifier to pad the formatted argument with the
-  fill character to the specified width using the default (right) numeric
-  alignment.
-
-  **Example**::
-
-    MemoryWriter out;
-    out << pad(hex(0xcafe), 8, '0');
-    // out.str() == "0000cafe"
-
-  \endrst
- */
-template <char TYPE_CODE, typename Char>
-IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(
-    int value, unsigned width, Char fill = ' ');
-
-#define FMT_DEFINE_INT_FORMATTERS(TYPE) \
-inline IntFormatSpec<TYPE, TypeSpec<'b'> > bin(TYPE value) { \
-  return IntFormatSpec<TYPE, TypeSpec<'b'> >(value, TypeSpec<'b'>()); \
-} \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'o'> > oct(TYPE value) { \
-  return IntFormatSpec<TYPE, TypeSpec<'o'> >(value, TypeSpec<'o'>()); \
-} \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'x'> > hex(TYPE value) { \
-  return IntFormatSpec<TYPE, TypeSpec<'x'> >(value, TypeSpec<'x'>()); \
-} \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'X'> > hexu(TYPE value) { \
-  return IntFormatSpec<TYPE, TypeSpec<'X'> >(value, TypeSpec<'X'>()); \
-} \
- \
-template <char TYPE_CODE> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> > pad( \
-    IntFormatSpec<TYPE, TypeSpec<TYPE_CODE> > f, unsigned width) { \
-  return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> >( \
-      f.value(), AlignTypeSpec<TYPE_CODE>(width, ' ')); \
-} \
- \
-/* For compatibility with older compilers we provide two overloads for pad, */ \
-/* one that takes a fill character and one that doesn't. In the future this */ \
-/* can be replaced with one overload making the template argument Char      */ \
-/* default to char (C++11). */ \
-template <char TYPE_CODE, typename Char> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char> pad( \
-    IntFormatSpec<TYPE, TypeSpec<TYPE_CODE>, Char> f, \
-    unsigned width, Char fill) { \
-  return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char>( \
-      f.value(), AlignTypeSpec<TYPE_CODE>(width, fill)); \
-} \
- \
-inline IntFormatSpec<TYPE, AlignTypeSpec<0> > pad( \
-    TYPE value, unsigned width) { \
-  return IntFormatSpec<TYPE, AlignTypeSpec<0> >( \
-      value, AlignTypeSpec<0>(width, ' ')); \
-} \
- \
-template <typename Char> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<0>, Char> pad( \
-   TYPE value, unsigned width, Char fill) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<0>, Char>( \
-     value, AlignTypeSpec<0>(width, fill)); \
-}
-
-FMT_DEFINE_INT_FORMATTERS(int)
-FMT_DEFINE_INT_FORMATTERS(long)
-FMT_DEFINE_INT_FORMATTERS(unsigned)
-FMT_DEFINE_INT_FORMATTERS(unsigned long)
-FMT_DEFINE_INT_FORMATTERS(LongLong)
-FMT_DEFINE_INT_FORMATTERS(ULongLong)
-
-/**
-  \rst
-  Returns a string formatter that pads the formatted argument with the fill
-  character to the specified width using the default (left) string alignment.
-
-  **Example**::
-
-    std::string s = str(MemoryWriter() << pad("abc", 8));
-    // s == "abc     "
-
-  \endrst
- */
-template <typename Char>
-inline StrFormatSpec<Char> pad(
-    const Char *str, unsigned width, Char fill = ' ') {
-  return StrFormatSpec<Char>(str, width, fill);
-}
-
-inline StrFormatSpec<wchar_t> pad(
-    const wchar_t *str, unsigned width, char fill = ' ') {
-  return StrFormatSpec<wchar_t>(str, width, fill);
-}
-
-// Generates a comma-separated list with results of applying f to
-// numbers 0..n-1.
-# define FMT_GEN(n, f) FMT_GEN##n(f)
-# define FMT_GEN1(f)  f(0)
-# define FMT_GEN2(f)  FMT_GEN1(f),  f(1)
-# define FMT_GEN3(f)  FMT_GEN2(f),  f(2)
-# define FMT_GEN4(f)  FMT_GEN3(f),  f(3)
-# define FMT_GEN5(f)  FMT_GEN4(f),  f(4)
-# define FMT_GEN6(f)  FMT_GEN5(f),  f(5)
-# define FMT_GEN7(f)  FMT_GEN6(f),  f(6)
-# define FMT_GEN8(f)  FMT_GEN7(f),  f(7)
-# define FMT_GEN9(f)  FMT_GEN8(f),  f(8)
-# define FMT_GEN10(f) FMT_GEN9(f),  f(9)
-# define FMT_GEN11(f) FMT_GEN10(f), f(10)
-# define FMT_GEN12(f) FMT_GEN11(f), f(11)
-# define FMT_GEN13(f) FMT_GEN12(f), f(12)
-# define FMT_GEN14(f) FMT_GEN13(f), f(13)
-# define FMT_GEN15(f) FMT_GEN14(f), f(14)
-
-namespace internal {
-inline uint64_t make_type() { return 0; }
-
-template <typename T>
-inline uint64_t make_type(const T &arg) { return MakeValue<char>::type(arg); }
-
-template <unsigned N>
-struct ArgArray {
-  // Computes the argument array size by adding 1 to N, which is the number of
-  // arguments, if N is zero, because array of zero size is invalid, or if N
-  // is greater than ArgList::MAX_PACKED_ARGS to accommodate for an extra
-  // argument that marks the end of the list.
-  enum { SIZE = N + (N == 0 || N >= ArgList::MAX_PACKED_ARGS ? 1 : 0) };
-
-  typedef typename Conditional<
-    (N < ArgList::MAX_PACKED_ARGS), Value, Arg>::type Type[SIZE];
-};
-
-#if FMT_USE_VARIADIC_TEMPLATES
-template <typename Arg, typename... Args>
-inline uint64_t make_type(const Arg &first, const Args & ... tail) {
-  return make_type(first) | (make_type(tail...) << 4);
-}
-
-inline void do_set_types(Arg *) {}
-
-template <typename T, typename... Args>
-inline void do_set_types(Arg *args, const T &arg, const Args & ... tail) {
-  args->type = static_cast<Arg::Type>(MakeValue<T>::type(arg));
-  do_set_types(args + 1, tail...);
-}
-
-template <typename... Args>
-inline void set_types(Arg *array, const Args & ... args) {
-  if (check(sizeof...(Args) > ArgList::MAX_PACKED_ARGS))
-    do_set_types(array, args...);
-  array[sizeof...(Args)].type = Arg::NONE;
-}
-
-template <typename... Args>
-inline void set_types(Value *, const Args & ...) {
-  // Do nothing as types are passed separately from values.
-}
-
-template <typename Char, typename Value>
-inline void store_args(Value *) {}
-
-template <typename Char, typename Arg, typename T, typename... Args>
-inline void store_args(Arg *args, const T &arg, const Args & ... tail) {
-  // Assign only the Value subobject of Arg and don't overwrite type (if any)
-  // that is assigned by set_types.
-  Value &value = *args;
-  value = MakeValue<Char>(arg);
-  store_args<Char>(args + 1, tail...);
-}
-
-template <typename Char, typename... Args>
-ArgList make_arg_list(typename ArgArray<sizeof...(Args)>::Type array,
-                      const Args & ... args) {
-  if (check(sizeof...(Args) >= ArgList::MAX_PACKED_ARGS))
-    set_types(array, args...);
-  store_args<Char>(array, args...);
-  return ArgList(make_type(args...), array);
-}
-#else
-
-struct ArgType {
-  uint64_t type;
-
-  ArgType() : type(0) {}
-
-  template <typename T>
-  ArgType(const T &arg) : type(make_type(arg)) {}
-};
-
-# define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType()
-
-inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT)) {
-  return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) |
-      (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) |
-      (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) |
-      (t12.type << 48) | (t13.type << 52) | (t14.type << 56);
-}
-#endif
-
-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;
-
-  Buffer<Char> &buffer_;
-  Char *start_;
-
- public:
-  FormatBuf(Buffer<Char> &buffer) : buffer_(buffer), start_(&buffer[0]) {
-    this->setp(start_, start_ + buffer_.capacity());
-  }
-
-  int_type overflow(int_type ch = traits_type::eof()) {
-    if (!traits_type::eq_int_type(ch, traits_type::eof())) {
-      size_t size = this->pptr() - start_;
-      buffer_.resize(size);
-      buffer_.reserve(size * 2);
-
-      start_ = &buffer_[0];
-      start_[size] = traits_type::to_char_type(ch);
-      this->setp(start_+ size + 1, start_ + size * 2);
-    }
-    return ch;
-  }
-
-  size_t size() const {
-    return this->pptr() - start_;
-  }
-};
-}  // namespace internal
-
-# define FMT_MAKE_TEMPLATE_ARG(n) typename T##n
-# define FMT_MAKE_ARG_TYPE(n) T##n
-# define FMT_MAKE_ARG(n) const T##n &v##n
-# define FMT_ASSIGN_char(n) arr[n] = fmt::internal::MakeValue<char>(v##n)
-# define FMT_ASSIGN_wchar_t(n) arr[n] = fmt::internal::MakeValue<wchar_t>(v##n)
-
-#if FMT_USE_VARIADIC_TEMPLATES
-// Defines a variadic function returning void.
-# define FMT_VARIADIC_VOID(func, arg_type) \
-  template <typename... Args> \
-  void func(arg_type arg0, const Args & ... args) { \
-    typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
-    func(arg0, fmt::internal::make_arg_list<Char>(array, args...)); \
-  }
-
-// Defines a variadic constructor.
-# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
-  template <typename... Args> \
-  ctor(arg0_type arg0, arg1_type arg1, const Args & ... args) { \
-    typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
-    func(arg0, arg1, fmt::internal::make_arg_list<Char>(array, args...)); \
-  }
-
-#else
-
-# define FMT_MAKE_REF(n) fmt::internal::MakeValue<Char>(v##n)
-# define FMT_MAKE_REF2(n) v##n
-
-// Defines a wrapper for a function taking one argument of type arg_type
-// and n additional arguments of arbitrary types.
-# define FMT_WRAP1(func, arg_type, n) \
-  template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
-  inline void func(arg_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
-    const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
-    func(arg1, fmt::ArgList( \
-      fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
-  }
-
-// Emulates a variadic function returning void on a pre-C++11 compiler.
-# define FMT_VARIADIC_VOID(func, arg_type) \
-  inline void func(arg_type arg) { func(arg, fmt::ArgList()); } \
-  FMT_WRAP1(func, arg_type, 1) FMT_WRAP1(func, arg_type, 2) \
-  FMT_WRAP1(func, arg_type, 3) FMT_WRAP1(func, arg_type, 4) \
-  FMT_WRAP1(func, arg_type, 5) FMT_WRAP1(func, arg_type, 6) \
-  FMT_WRAP1(func, arg_type, 7) FMT_WRAP1(func, arg_type, 8) \
-  FMT_WRAP1(func, arg_type, 9) FMT_WRAP1(func, arg_type, 10)
-
-# define FMT_CTOR(ctor, func, arg0_type, arg1_type, n) \
-  template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
-  ctor(arg0_type arg0, arg1_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
-    const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
-    func(arg0, arg1, fmt::ArgList( \
-      fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
-  }
-
-// Emulates a variadic constructor on a pre-C++11 compiler.
-# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 1) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 2) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 3) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 4) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 5) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 6) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 7) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 8) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 9) \
-  FMT_CTOR(ctor, func, arg0_type, arg1_type, 10)
-#endif
-
-// Generates a comma-separated list with results of applying f to pairs
-// (argument, index).
-#define FMT_FOR_EACH1(f, x0) f(x0, 0)
-#define FMT_FOR_EACH2(f, x0, x1) \
-  FMT_FOR_EACH1(f, x0), f(x1, 1)
-#define FMT_FOR_EACH3(f, x0, x1, x2) \
-  FMT_FOR_EACH2(f, x0 ,x1), f(x2, 2)
-#define FMT_FOR_EACH4(f, x0, x1, x2, x3) \
-  FMT_FOR_EACH3(f, x0, x1, x2), f(x3, 3)
-#define FMT_FOR_EACH5(f, x0, x1, x2, x3, x4) \
-  FMT_FOR_EACH4(f, x0, x1, x2, x3), f(x4, 4)
-#define FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5) \
-  FMT_FOR_EACH5(f, x0, x1, x2, x3, x4), f(x5, 5)
-#define FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6) \
-  FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5), f(x6, 6)
-#define FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7) \
-  FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6), f(x7, 7)
-#define FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8) \
-  FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7), f(x8, 8)
-#define FMT_FOR_EACH10(f, x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) \
-  FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9)
-
-/**
- An error returned by an operating system or a language runtime,
- for example a file opening error.
-*/
-class SystemError : public internal::RuntimeError {
- private:
-  void init(int err_code, CStringRef format_str, ArgList args);
-
- protected:
-  int error_code_;
-
-  typedef char Char;  // For FMT_VARIADIC_CTOR.
-
-  SystemError() {}
-
- public:
-  /**
-   \rst
-   Constructs a :class:`fmt::SystemError` 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 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.
-
-   **Example**::
-
-     // This throws a SystemError 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::SystemError(errno, "cannot open file '{}'", filename);
-   \endrst
-  */
-  SystemError(int error_code, CStringRef message) {
-    init(error_code, message, ArgList());
-  }
-  FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
-
-  int error_code() const { return error_code_; }
-};
-
-/**
-  \rst
-  This template provides operations for formatting and writing data into
-  a character stream. The output is stored in a buffer provided by a subclass
-  such as :class:`fmt::BasicMemoryWriter`.
-
-  You can use one of the following typedefs for common character types:
-
-  +---------+----------------------+
-  | Type    | Definition           |
-  +=========+======================+
-  | Writer  | BasicWriter<char>    |
-  +---------+----------------------+
-  | WWriter | BasicWriter<wchar_t> |
-  +---------+----------------------+
-
-  \endrst
- */
-template <typename Char>
-class BasicWriter {
- private:
-  // Output buffer.
-  Buffer<Char> &buffer_;
-
-  FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
-
-  typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
-
-#if FMT_SECURE_SCL
-  // Returns pointer value.
-  static Char *get(CharPtr p) { return p.base(); }
-#else
-  static Char *get(Char *p) { return p; }
-#endif
-
-  // Fills the padding around the content and returns the pointer to the
-  // content area.
-  static CharPtr fill_padding(CharPtr buffer,
-      unsigned total_size, std::size_t content_size, wchar_t fill);
-
-  // Grows the buffer by n characters and returns a pointer to the newly
-  // allocated area.
-  CharPtr grow_buffer(std::size_t n) {
-    std::size_t size = buffer_.size();
-    buffer_.resize(size + n);
-    return internal::make_ptr(&buffer_[size], n);
-  }
-
-  // Writes an unsigned decimal integer.
-  template <typename UInt>
-  Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0) {
-    unsigned num_digits = internal::count_digits(value);
-    Char *ptr = get(grow_buffer(prefix_size + num_digits));
-    internal::format_decimal(ptr + prefix_size, value, num_digits);
-    return ptr;
-  }
-
-  // Writes a decimal integer.
-  template <typename Int>
-  void write_decimal(Int value) {
-    typename internal::IntTraits<Int>::MainType abs_value = value;
-    if (internal::is_negative(value)) {
-      abs_value = 0 - abs_value;
-      *write_unsigned_decimal(abs_value, 1) = '-';
-    } else {
-      write_unsigned_decimal(abs_value, 0);
-    }
-  }
-
-  // Prepare a buffer for integer formatting.
-  CharPtr prepare_int_buffer(unsigned num_digits,
-      const EmptySpec &, const char *prefix, unsigned prefix_size) {
-    unsigned size = prefix_size + num_digits;
-    CharPtr p = grow_buffer(size);
-    std::copy(prefix, prefix + prefix_size, p);
-    return p + size - 1;
-  }
-
-  template <typename Spec>
-  CharPtr prepare_int_buffer(unsigned num_digits,
-    const Spec &spec, const char *prefix, unsigned prefix_size);
-
-  // Formats an integer.
-  template <typename T, typename Spec>
-  void write_int(T value, Spec spec);
-
-  // Formats a floating-point number (double or long double).
-  template <typename T>
-  void write_double(T value, const FormatSpec &spec);
-
-  // Writes a formatted string.
-  template <typename StrChar>
-  CharPtr write_str(
-      const StrChar *s, std::size_t size, const AlignSpec &spec);
-
-  template <typename StrChar>
-  void write_str(
-      const internal::Arg::StringValue<StrChar> &str, const FormatSpec &spec);
-
-  // This following methods are private to disallow writing wide characters
-  // and strings to a char stream. If you want to print a wide string as a
-  // pointer as std::ostream does, cast it to const void*.
-  // Do not implement!
-  void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
-  void operator<<(
-      typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
-
-  // Appends floating-point length specifier to the format string.
-  // The second argument is only used for overload resolution.
-  void append_float_length(Char *&format_ptr, long double) {
-    *format_ptr++ = 'L';
-  }
-
-  template<typename T>
-  void append_float_length(Char *&, T) {}
-
-  template <typename Impl, typename Char_>
-  friend class internal::BasicArgFormatter;
-
-  friend class internal::PrintfArgFormatter<Char>;
-
- protected:
-  /**
-    Constructs a ``BasicWriter`` object.
-   */
-  explicit BasicWriter(Buffer<Char> &b) : buffer_(b) {}
-
- public:
-  /**
-    \rst
-    Destroys a ``BasicWriter`` object.
-    \endrst
-   */
-  virtual ~BasicWriter() {}
-
-  /**
-    Returns the total number of characters written.
-   */
-  std::size_t size() const { return buffer_.size(); }
-
-  /**
-    Returns a pointer to the output buffer content. No terminating null
-    character is appended.
-   */
-  const Char *data() const FMT_NOEXCEPT { return &buffer_[0]; }
-
-  /**
-    Returns a pointer to the output buffer content with terminating null
-    character appended.
-   */
-  const Char *c_str() const {
-    std::size_t size = buffer_.size();
-    buffer_.reserve(size + 1);
-    buffer_[size] = '\0';
-    return &buffer_[0];
-  }
-
-  /**
-    \rst
-    Returns the content of the output buffer as an `std::string`.
-    \endrst
-   */
-  std::basic_string<Char> str() const {
-    return std::basic_string<Char>(&buffer_[0], buffer_.size());
-  }
-
-  /**
-    \rst
-    Writes formatted data.
-
-    *args* is an argument list representing arbitrary arguments.
-
-    **Example**::
-
-       MemoryWriter out;
-       out.write("Current point:\n");
-       out.write("({:+f}, {:+f})", -3.14, 3.14);
-
-    This will write the following output to the ``out`` object:
-
-    .. code-block:: none
-
-       Current point:
-       (-3.140000, +3.140000)
-
-    The output can be accessed using :func:`data()`, :func:`c_str` or
-    :func:`str` methods.
-
-    See also :ref:`syntax`.
-    \endrst
-   */
-  void write(BasicCStringRef<Char> format, ArgList args) {
-    BasicFormatter<Char>(args, *this).format(format);
-  }
-  FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
-
-  BasicWriter &operator<<(int value) {
-    write_decimal(value);
-    return *this;
-  }
-  BasicWriter &operator<<(unsigned value) {
-    return *this << IntFormatSpec<unsigned>(value);
-  }
-  BasicWriter &operator<<(long value) {
-    write_decimal(value);
-    return *this;
-  }
-  BasicWriter &operator<<(unsigned long value) {
-    return *this << IntFormatSpec<unsigned long>(value);
-  }
-  BasicWriter &operator<<(LongLong value) {
-    write_decimal(value);
-    return *this;
-  }
-
-  /**
-    \rst
-    Formats *value* and writes it to the stream.
-    \endrst
-   */
-  BasicWriter &operator<<(ULongLong value) {
-    return *this << IntFormatSpec<ULongLong>(value);
-  }
-
-  BasicWriter &operator<<(double value) {
-    write_double(value, FormatSpec());
-    return *this;
-  }
-
-  /**
-    \rst
-    Formats *value* using the general format for floating-point numbers
-    (``'g'``) and writes it to the stream.
-    \endrst
-   */
-  BasicWriter &operator<<(long double value) {
-    write_double(value, FormatSpec());
-    return *this;
-  }
-
-  /**
-    Writes a character to the stream.
-   */
-  BasicWriter &operator<<(char value) {
-    buffer_.push_back(value);
-    return *this;
-  }
-
-  BasicWriter &operator<<(
-      typename internal::WCharHelper<wchar_t, Char>::Supported value) {
-    buffer_.push_back(value);
-    return *this;
-  }
-
-  /**
-    \rst
-    Writes *value* to the stream.
-    \endrst
-   */
-  BasicWriter &operator<<(fmt::BasicStringRef<Char> value) {
-    const Char *str = value.data();
-    buffer_.append(str, str + value.size());
-    return *this;
-  }
-
-  BasicWriter &operator<<(
-      typename internal::WCharHelper<StringRef, Char>::Supported value) {
-    const char *str = value.data();
-    buffer_.append(str, str + value.size());
-    return *this;
-  }
-
-  template <typename T, typename Spec, typename FillChar>
-  BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec) {
-    internal::CharTraits<Char>::convert(FillChar());
-    write_int(spec.value(), spec);
-    return *this;
-  }
-
-  template <typename StrChar>
-  BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec) {
-    const StrChar *s = spec.str();
-    write_str(s, std::char_traits<Char>::length(s), spec);
-    return *this;
-  }
-
-  void clear() FMT_NOEXCEPT { buffer_.clear(); }
-};
-
-template <typename Char>
-template <typename StrChar>
-typename BasicWriter<Char>::CharPtr BasicWriter<Char>::write_str(
-      const StrChar *s, std::size_t size, const AlignSpec &spec) {
-  CharPtr out = CharPtr();
-  if (spec.width() > size) {
-    out = grow_buffer(spec.width());
-    Char fill = internal::CharTraits<Char>::cast(spec.fill());
-    if (spec.align() == ALIGN_RIGHT) {
-      std::fill_n(out, spec.width() - size, fill);
-      out += spec.width() - size;
-    } else if (spec.align() == ALIGN_CENTER) {
-      out = fill_padding(out, spec.width(), size, fill);
-    } else {
-      std::fill_n(out + size, spec.width() - size, fill);
-    }
-  } else {
-    out = grow_buffer(size);
-  }
-  std::copy(s, s + size, out);
-  return out;
-}
-
-template <typename Char>
-typename BasicWriter<Char>::CharPtr
-  BasicWriter<Char>::fill_padding(
-    CharPtr buffer, unsigned total_size,
-    std::size_t content_size, wchar_t fill) {
-  std::size_t padding = total_size - content_size;
-  std::size_t left_padding = padding / 2;
-  Char fill_char = internal::CharTraits<Char>::cast(fill);
-  std::fill_n(buffer, left_padding, fill_char);
-  buffer += left_padding;
-  CharPtr content = buffer;
-  std::fill_n(buffer + content_size, padding - left_padding, fill_char);
-  return content;
-}
-
-template <typename Char>
-template <typename Spec>
-typename BasicWriter<Char>::CharPtr
-  BasicWriter<Char>::prepare_int_buffer(
-    unsigned num_digits, const Spec &spec,
-    const char *prefix, unsigned prefix_size) {
-  unsigned width = spec.width();
-  Alignment align = spec.align();
-  Char fill = internal::CharTraits<Char>::cast(spec.fill());
-  if (spec.precision() > static_cast<int>(num_digits)) {
-    // Octal prefix '0' is counted as a digit, so ignore it if precision
-    // is specified.
-    if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
-      --prefix_size;
-    unsigned number_size = prefix_size + spec.precision();
-    AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
-    if (number_size >= width)
-      return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
-    buffer_.reserve(width);
-    unsigned fill_size = width - number_size;
-    if (align != ALIGN_LEFT) {
-      CharPtr p = grow_buffer(fill_size);
-      std::fill(p, p + fill_size, fill);
-    }
-    CharPtr result = prepare_int_buffer(
-        num_digits, subspec, prefix, prefix_size);
-    if (align == ALIGN_LEFT) {
-      CharPtr p = grow_buffer(fill_size);
-      std::fill(p, p + fill_size, fill);
-    }
-    return result;
-  }
-  unsigned size = prefix_size + num_digits;
-  if (width <= size) {
-    CharPtr p = grow_buffer(size);
-    std::copy(prefix, prefix + prefix_size, p);
-    return p + size - 1;
-  }
-  CharPtr p = grow_buffer(width);
-  CharPtr end = p + width;
-  if (align == ALIGN_LEFT) {
-    std::copy(prefix, prefix + prefix_size, p);
-    p += size;
-    std::fill(p, end, fill);
-  } else if (align == ALIGN_CENTER) {
-    p = fill_padding(p, width, size, fill);
-    std::copy(prefix, prefix + prefix_size, p);
-    p += size;
-  } else {
-    if (align == ALIGN_NUMERIC) {
-      if (prefix_size != 0) {
-        p = std::copy(prefix, prefix + prefix_size, p);
-        size -= prefix_size;
-      }
-    } else {
-      std::copy(prefix, prefix + prefix_size, end - size);
-    }
-    std::fill(p, end - size, fill);
-    p = end;
-  }
-  return p - 1;
-}
-
-template <typename Char>
-template <typename T, typename Spec>
-void BasicWriter<Char>::write_int(T value, Spec spec) {
-  unsigned prefix_size = 0;
-  typedef typename internal::IntTraits<T>::MainType UnsignedType;
-  UnsignedType abs_value = value;
-  char prefix[4] = "";
-  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;
-  }
-  switch (spec.type()) {
-  case 0: case 'd': {
-    unsigned num_digits = internal::count_digits(abs_value);
-    CharPtr p = prepare_int_buffer(
-      num_digits, spec, prefix, prefix_size) + 1 - num_digits;
-    internal::format_decimal(get(p), abs_value, num_digits);
-    break;
-  }
-  case 'x': case 'X': {
-    UnsignedType n = abs_value;
-    if (spec.flag(HASH_FLAG)) {
-      prefix[prefix_size++] = '0';
-      prefix[prefix_size++] = spec.type();
-    }
-    unsigned num_digits = 0;
-    do {
-      ++num_digits;
-    } while ((n >>= 4) != 0);
-    Char *p = get(prepare_int_buffer(
-      num_digits, spec, prefix, prefix_size));
-    n = abs_value;
-    const char *digits = spec.type() == 'x' ?
-        "0123456789abcdef" : "0123456789ABCDEF";
-    do {
-      *p-- = digits[n & 0xf];
-    } while ((n >>= 4) != 0);
-    break;
-  }
-  case 'b': case 'B': {
-    UnsignedType n = abs_value;
-    if (spec.flag(HASH_FLAG)) {
-      prefix[prefix_size++] = '0';
-      prefix[prefix_size++] = spec.type();
-    }
-    unsigned num_digits = 0;
-    do {
-      ++num_digits;
-    } while ((n >>= 1) != 0);
-    Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
-    n = abs_value;
-    do {
-      *p-- = static_cast<Char>('0' + (n & 1));
-    } while ((n >>= 1) != 0);
-    break;
-  }
-  case 'o': {
-    UnsignedType n = abs_value;
-    if (spec.flag(HASH_FLAG))
-      prefix[prefix_size++] = '0';
-    unsigned num_digits = 0;
-    do {
-      ++num_digits;
-    } while ((n >>= 3) != 0);
-    Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
-    n = abs_value;
-    do {
-      *p-- = static_cast<Char>('0' + (n & 7));
-    } while ((n >>= 3) != 0);
-    break;
-  }
-  default:
-    internal::report_unknown_type(
-      spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
-    break;
-  }
-}
-
-template <typename Char>
-template <typename T>
-void BasicWriter<Char>::write_double(
-    T value, const FormatSpec &spec) {
-  // Check type.
-  char type = spec.type();
-  bool upper = false;
-  switch (type) {
-  case 0:
-    type = 'g';
-    break;
-  case 'e': case 'f': case 'g': case 'a':
-    break;
-  case 'F':
-#ifdef _MSC_VER
-    // MSVC's printf doesn't support 'F'.
-    type = 'f';
-#endif
-    // Fall through.
-  case 'E': case 'G': case 'A':
-    upper = true;
-    break;
-  default:
-    internal::report_unknown_type(type, "double");
-    break;
-  }
-
-  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) ? '+' : ' ';
-  }
-
-  if (internal::FPUtil::isnotanumber(value)) {
-    // Format NaN ourselves because sprintf's output is not consistent
-    // across platforms.
-    std::size_t nan_size = 4;
-    const char *nan = upper ? " NAN" : " nan";
-    if (!sign) {
-      --nan_size;
-      ++nan;
-    }
-    CharPtr out = write_str(nan, nan_size, spec);
-    if (sign)
-      *out = sign;
-    return;
-  }
-
-  if (internal::FPUtil::isinfinity(value)) {
-    // Format infinity ourselves because sprintf's output is not consistent
-    // across platforms.
-    std::size_t inf_size = 4;
-    const char *inf = upper ? " INF" : " inf";
-    if (!sign) {
-      --inf_size;
-      ++inf;
-    }
-    CharPtr out = write_str(inf, inf_size, spec);
-    if (sign)
-      *out = sign;
-    return;
-  }
-
-  std::size_t offset = buffer_.size();
-  unsigned width = spec.width();
-  if (sign) {
-    buffer_.reserve(buffer_.size() + (std::max)(width, 1u));
-    if (width > 0)
-      --width;
-    ++offset;
-  }
-
-  // Build format string.
-  enum { MAX_FORMAT_SIZE = 10}; // longest format: %#-*.*Lg
-  Char format[MAX_FORMAT_SIZE];
-  Char *format_ptr = format;
-  *format_ptr++ = '%';
-  unsigned width_for_sprintf = width;
-  if (spec.flag(HASH_FLAG))
-    *format_ptr++ = '#';
-  if (spec.align() == ALIGN_CENTER) {
-    width_for_sprintf = 0;
-  } else {
-    if (spec.align() == ALIGN_LEFT)
-      *format_ptr++ = '-';
-    if (width != 0)
-      *format_ptr++ = '*';
-  }
-  if (spec.precision() >= 0) {
-    *format_ptr++ = '.';
-    *format_ptr++ = '*';
-  }
-
-  append_float_length(format_ptr, value);
-  *format_ptr++ = type;
-  *format_ptr = '\0';
-
-  // Format using snprintf.
-  Char fill = internal::CharTraits<Char>::cast(spec.fill());
-  for (;;) {
-    std::size_t buffer_size = buffer_.capacity() - offset;
-#ifdef _MSC_VER
-    // MSVC's vsnprintf_s doesn't work with zero size, so reserve
-    // space for at least one extra character to make the size non-zero.
-    // Note that the buffer's capacity will increase by more than 1.
-    if (buffer_size == 0) {
-      buffer_.reserve(offset + 1);
-      buffer_size = buffer_.capacity() - offset;
-    }
-#endif
-    Char *start = &buffer_[offset];
-    int n = internal::CharTraits<Char>::format_float(
-        start, buffer_size, format, width_for_sprintf, spec.precision(), value);
-    if (n >= 0 && offset + n < buffer_.capacity()) {
-      if (sign) {
-        if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) ||
-            *start != ' ') {
-          *(start - 1) = sign;
-          sign = 0;
-        } else {
-          *(start - 1) = fill;
-        }
-        ++n;
-      }
-      if (spec.align() == ALIGN_CENTER &&
-          spec.width() > static_cast<unsigned>(n)) {
-        width = spec.width();
-        CharPtr p = grow_buffer(width);
-        std::copy(p, p + n, p + (width - n) / 2);
-        fill_padding(p, spec.width(), n, fill);
-        return;
-      }
-      if (spec.fill() != ' ' || sign) {
-        while (*start == ' ')
-          *start++ = fill;
-        if (sign)
-          *(start - 1) = sign;
-      }
-      grow_buffer(n);
-      return;
-    }
-    // If n is negative we ask to increase the capacity by at least 1,
-    // but as std::vector, the buffer grows exponentially.
-    buffer_.reserve(n >= 0 ? offset + n + 1 : buffer_.capacity() + 1);
-  }
-}
-
-/**
-  \rst
-  This class template provides operations for formatting and writing data
-  into a character stream. The output is stored in a memory buffer that grows
-  dynamically.
-
-  You can use one of the following typedefs for common character types
-  and the standard allocator:
-
-  +---------------+-----------------------------------------------------+
-  | Type          | Definition                                          |
-  +===============+=====================================================+
-  | MemoryWriter  | BasicMemoryWriter<char, std::allocator<char>>       |
-  +---------------+-----------------------------------------------------+
-  | WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
-  +---------------+-----------------------------------------------------+
-
-  **Example**::
-
-     MemoryWriter out;
-     out << "The answer is " << 42 << "\n";
-     out.write("({:+f}, {:+f})", -3.14, 3.14);
-
-  This will write the following output to the ``out`` object:
-
-  .. code-block:: none
-
-     The answer is 42
-     (-3.140000, +3.140000)
-
-  The output can be converted to an ``std::string`` with ``out.str()`` or
-  accessed as a C string with ``out.c_str()``.
-  \endrst
- */
-template <typename Char, typename Allocator = std::allocator<Char> >
-class BasicMemoryWriter : public BasicWriter<Char> {
- private:
-  internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
-
- public:
-  explicit BasicMemoryWriter(const Allocator& alloc = Allocator())
-    : BasicWriter<Char>(buffer_), buffer_(alloc) {}
-
-#if FMT_USE_RVALUE_REFERENCES
-  /**
-    \rst
-    Constructs a :class:`fmt::BasicMemoryWriter` object moving the content
-    of the other object to it.
-    \endrst
-   */
-  BasicMemoryWriter(BasicMemoryWriter &&other)
-    : BasicWriter<Char>(buffer_), buffer_(std::move(other.buffer_)) {
-  }
-
-  /**
-    \rst
-    Moves the content of the other ``BasicMemoryWriter`` object to this one.
-    \endrst
-   */
-  BasicMemoryWriter &operator=(BasicMemoryWriter &&other) {
-    buffer_ = std::move(other.buffer_);
-    return *this;
-  }
-#endif
-};
-
-typedef BasicMemoryWriter<char> MemoryWriter;
-typedef BasicMemoryWriter<wchar_t> WMemoryWriter;
-
-/**
-  \rst
-  This class template provides operations for formatting and writing data
-  into a fixed-size array. For writing into a dynamically growing buffer
-  use :class:`fmt::BasicMemoryWriter`.
-
-  Any write method will throw ``std::runtime_error`` if the output doesn't fit
-  into the array.
-
-  You can use one of the following typedefs for common character types:
-
-  +--------------+---------------------------+
-  | Type         | Definition                |
-  +==============+===========================+
-  | ArrayWriter  | BasicArrayWriter<char>    |
-  +--------------+---------------------------+
-  | WArrayWriter | BasicArrayWriter<wchar_t> |
-  +--------------+---------------------------+
-  \endrst
- */
-template <typename Char>
-class BasicArrayWriter : public BasicWriter<Char> {
- private:
-  internal::FixedBuffer<Char> buffer_;
-
- public:
-  /**
-   \rst
-   Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
-   given size.
-   \endrst
-   */
-  BasicArrayWriter(Char *array, std::size_t size)
-    : BasicWriter<Char>(buffer_), buffer_(array, size) {}
-
-  /**
-   \rst
-   Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
-   size known at compile time.
-   \endrst
-   */
-  template <std::size_t SIZE>
-  explicit BasicArrayWriter(Char (&array)[SIZE])
-    : BasicWriter<Char>(buffer_), buffer_(array, SIZE) {}
-};
-
-typedef BasicArrayWriter<char> ArrayWriter;
-typedef BasicArrayWriter<wchar_t> WArrayWriter;
-
-// Formats a value.
-template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value) {
-  internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
-
-  internal::FormatBuf<Char> format_buf(buffer);
-  std::basic_ostream<Char> output(&format_buf);
-  output << value;
-
-  BasicStringRef<Char> str(&buffer[0], format_buf.size());
-  internal::Arg arg = internal::MakeValue<Char>(str);
-  arg.type = static_cast<internal::Arg::Type>(
-        internal::MakeValue<Char>::type(str));
-  format_str = f.format(format_str, arg);
-}
-
-// Reports a system error without throwing an exception.
-// Can be used to report errors from destructors.
-void report_system_error(int error_code, StringRef message) FMT_NOEXCEPT;
-
-#if FMT_USE_WINDOWS_H
-
-/** A Windows error. */
-class WindowsError : public SystemError {
- private:
-  void init(int error_code, CStringRef format_str, ArgList args);
-
- public:
-  /**
-   \rst
-   Constructs a :class:`fmt::WindowsError` 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 WindowsError 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::WindowsError(GetLastError(),
-                               "cannot open file '{}'", filename);
-     }
-   \endrst
-  */
-  WindowsError(int error_code, CStringRef message) {
-    init(error_code, message, ArgList());
-  }
-  FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
-};
-
-// Reports a Windows error without throwing an exception.
-// Can be used to report errors from destructors.
-void report_windows_error(int error_code, StringRef message) FMT_NOEXCEPT;
-
-#endif
-
-enum Color { BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE };
-
-/**
-  Formats a string and prints it to stdout using ANSI escape sequences
-  to specify color (experimental).
-  Example:
-    print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23);
- */
-void print_colored(Color c, CStringRef format, ArgList args);
-
-/**
-  \rst
-  Formats arguments and returns the result as a string.
-
-  **Example**::
-
-    std::string message = format("The answer is {}", 42);
-  \endrst
-*/
-inline std::string format(CStringRef format_str, ArgList args) {
-  MemoryWriter w;
-  w.write(format_str, args);
-  return w.str();
-}
-
-inline std::wstring format(WCStringRef format_str, ArgList args) {
-  WMemoryWriter w;
-  w.write(format_str, args);
-  return w.str();
-}
-
-/**
-  \rst
-  Prints formatted data to the file *f*.
-
-  **Example**::
-
-    print(stderr, "Don't {}!", "panic");
-  \endrst
- */
-void print(std::FILE *f, CStringRef format_str, ArgList args);
-
-/**
-  \rst
-  Prints formatted data to ``stdout``.
-
-  **Example**::
-
-    print("Elapsed time: {0:.2f} seconds", 1.23);
-  \endrst
- */
-void print(CStringRef format_str, ArgList args);
-
-template <typename Char>
-void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args) {
-  internal::PrintfFormatter<Char>(args).format(w, format);
-}
-
-/**
-  \rst
-  Formats arguments and returns the result as a string.
-
-  **Example**::
-
-    std::string message = fmt::sprintf("The answer is %d", 42);
-  \endrst
-*/
-inline std::string sprintf(CStringRef format, ArgList args) {
-  MemoryWriter w;
-  printf(w, format, args);
-  return w.str();
-}
-
-inline std::wstring sprintf(WCStringRef format, ArgList args) {
-  WMemoryWriter w;
-  printf(w, format, args);
-  return w.str();
-}
-
-/**
-  \rst
-  Prints formatted data to the file *f*.
-
-  **Example**::
-
-    fmt::fprintf(stderr, "Don't %s!", "panic");
-  \endrst
- */
-int fprintf(std::FILE *f, CStringRef format, ArgList args);
-
-/**
-  \rst
-  Prints formatted data to ``stdout``.
-
-  **Example**::
-
-    fmt::printf("Elapsed time: %.2f seconds", 1.23);
-  \endrst
- */
-inline int printf(CStringRef format, ArgList args) {
-  return fprintf(stdout, format, args);
-}
-
-/**
-  Fast integer formatter.
- */
-class FormatInt {
- private:
-  // Buffer should be large enough to hold all digits (digits10 + 1),
-  // a sign and a null character.
-  enum {BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3};
-  mutable char buffer_[BUFFER_SIZE];
-  char *str_;
-
-  // Formats value in reverse and returns the number of digits.
-  char *format_decimal(ULongLong value) {
-    char *buffer_end = 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;
-      *--buffer_end = internal::Data::DIGITS[index + 1];
-      *--buffer_end = internal::Data::DIGITS[index];
-    }
-    if (value < 10) {
-      *--buffer_end = static_cast<char>('0' + value);
-      return buffer_end;
-    }
-    unsigned index = static_cast<unsigned>(value * 2);
-    *--buffer_end = internal::Data::DIGITS[index + 1];
-    *--buffer_end = internal::Data::DIGITS[index];
-    return buffer_end;
-  }
-
-  void FormatSigned(LongLong value) {
-    ULongLong abs_value = static_cast<ULongLong>(value);
-    bool negative = value < 0;
-    if (negative)
-      abs_value = 0 - abs_value;
-    str_ = format_decimal(abs_value);
-    if (negative)
-      *--str_ = '-';
-  }
-
- public:
-  explicit FormatInt(int value) { FormatSigned(value); }
-  explicit FormatInt(long value) { FormatSigned(value); }
-  explicit FormatInt(LongLong value) { FormatSigned(value); }
-  explicit FormatInt(unsigned value) : str_(format_decimal(value)) {}
-  explicit FormatInt(unsigned long value) : str_(format_decimal(value)) {}
-  explicit FormatInt(ULongLong value) : str_(format_decimal(value)) {}
-
-  /**
-    Returns the number of characters written to the output buffer.
-   */
-  std::size_t size() const { return 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) {
-  typename internal::IntTraits<T>::MainType abs_value = 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;
-}
-
-/**
-  \rst
-  Returns a named argument for formatting functions.
-
-  **Example**::
-
-    print("Elapsed time: {s:.2f} seconds", arg("s", 1.23));
-
-  \endrst
- */
-template <typename T>
-inline internal::NamedArg<char> arg(StringRef name, const T &arg) {
-  return internal::NamedArg<char>(name, arg);
-}
-
-template <typename T>
-inline internal::NamedArg<wchar_t> arg(WStringRef name, const T &arg) {
-  return internal::NamedArg<wchar_t>(name, arg);
-}
-
-// The following two functions are deleted intentionally to disable
-// nested named arguments as in ``format("{}", arg("a", arg("b", 42)))``.
-template <typename Char>
-void arg(StringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
-template <typename Char>
-void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
-}
-
-#if FMT_GCC_VERSION
-// Use the system_header pragma to suppress warnings about variadic macros
-// because suppressing -Wvariadic-macros with the diagnostic pragma doesn't
-// work. It is used at the end because we want to suppress as little warnings
-// as possible.
-# pragma GCC system_header
-#endif
-
-// This is used to work around VC++ bugs in handling variadic macros.
-#define FMT_EXPAND(args) args
-
-// Returns the number of arguments.
-// Based on https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s.
-#define FMT_NARG(...) FMT_NARG_(__VA_ARGS__, FMT_RSEQ_N())
-#define FMT_NARG_(...) FMT_EXPAND(FMT_ARG_N(__VA_ARGS__))
-#define FMT_ARG_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
-#define FMT_RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
-
-#define FMT_CONCAT(a, b) a##b
-#define FMT_FOR_EACH_(N, f, ...) \
-  FMT_EXPAND(FMT_CONCAT(FMT_FOR_EACH, N)(f, __VA_ARGS__))
-#define FMT_FOR_EACH(f, ...) \
-  FMT_EXPAND(FMT_FOR_EACH_(FMT_NARG(__VA_ARGS__), f, __VA_ARGS__))
-
-#define FMT_ADD_ARG_NAME(type, index) type arg##index
-#define FMT_GET_ARG_NAME(type, index) arg##index
-
-#if FMT_USE_VARIADIC_TEMPLATES
-# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \
-  template <typename... Args> \
-  ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
-      const Args & ... args) { \
-    typename fmt::internal::ArgArray<sizeof...(Args)>::Type array; \
-    call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), \
-      fmt::internal::make_arg_list<Char>(array, args...)); \
-  }
-#else
-// Defines a wrapper for a function taking __VA_ARGS__ arguments
-// and n additional arguments of arbitrary types.
-# define FMT_WRAP(Char, ReturnType, func, call, n, ...) \
-  template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
-  inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
-      FMT_GEN(n, FMT_MAKE_ARG)) { \
-    fmt::internal::ArgArray<n>::Type arr; \
-    FMT_GEN(n, FMT_ASSIGN_##Char); \
-    call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList( \
-      fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), arr)); \
-  }
-
-# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \
-  inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__)) { \
-    call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList()); \
-  } \
-  FMT_WRAP(Char, ReturnType, func, call, 1, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 2, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 3, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 4, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 5, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 6, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 7, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 8, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 9, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 10, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 11, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 12, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 13, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 14, __VA_ARGS__) \
-  FMT_WRAP(Char, ReturnType, func, call, 15, __VA_ARGS__)
-#endif  // FMT_USE_VARIADIC_TEMPLATES
-
-/**
-  \rst
-  Defines a variadic function with the specified return type, function name
-  and argument types passed as variable arguments to this macro.
-
-  **Example**::
-
-    void print_error(const char *file, int line, const char *format,
-                     fmt::ArgList args) {
-      fmt::print("{}: {}: ", file, line);
-      fmt::print(format, args);
-    }
-    FMT_VARIADIC(void, print_error, const char *, int, const char *)
-
-  ``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that
-  don't implement variadic templates. You don't have to use this macro if
-  you don't need legacy compiler support and can use variadic templates
-  directly::
-
-    template <typename... Args>
-    void print_error(const char *file, int line, const char *format,
-                     const Args & ... args) {
-      fmt::print("{}: {}: ", file, line);
-      fmt::print(format, args...);
-    }
-  \endrst
- */
-#define FMT_VARIADIC(ReturnType, func, ...) \
-  FMT_VARIADIC_(char, ReturnType, func, return func, __VA_ARGS__)
-
-#define FMT_VARIADIC_W(ReturnType, func, ...) \
-  FMT_VARIADIC_(wchar_t, ReturnType, func, return func, __VA_ARGS__)
-
-#define FMT_CAPTURE_ARG_(id, index) ::fmt::arg(#id, id)
-
-#define FMT_CAPTURE_ARG_W_(id, index) ::fmt::arg(L###id, id)
-
-/**
-  \rst
-  Convenient macro to capture the arguments' names and values into several
-  ``fmt::arg(name, value)``.
-
-  **Example**::
-
-    int x = 1, y = 2;
-    print("point: ({x}, {y})", FMT_CAPTURE(x, y));
-    // same as:
-    // print("point: ({x}, {y})", arg("x", x), arg("y", y));
-
-  \endrst
- */
-#define FMT_CAPTURE(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_, __VA_ARGS__)
-
-#define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__)
-
-namespace fmt {
-FMT_VARIADIC(std::string, format, CStringRef)
-FMT_VARIADIC_W(std::wstring, format, WCStringRef)
-FMT_VARIADIC(void, print, CStringRef)
-FMT_VARIADIC(void, print, std::FILE *, CStringRef)
-
-FMT_VARIADIC(void, print_colored, Color, CStringRef)
-FMT_VARIADIC(std::string, sprintf, CStringRef)
-FMT_VARIADIC_W(std::wstring, sprintf, WCStringRef)
-FMT_VARIADIC(int, printf, CStringRef)
-FMT_VARIADIC(int, fprintf, std::FILE *, CStringRef)
-
-#if FMT_USE_IOSTREAMS
-/**
-  \rst
-  Prints formatted data to the stream *os*.
-
-  **Example**::
-
-    print(cerr, "Don't {}!", "panic");
-  \endrst
- */
-void print(std::ostream &os, CStringRef format_str, ArgList args);
-FMT_VARIADIC(void, print, std::ostream &, CStringRef)
-#endif
-}  // namespace fmt
-
-#if FMT_USE_USER_DEFINED_LITERALS
-namespace fmt {
-namespace internal {
-
-template <typename Char>
-struct UdlFormat {
-  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)...);
-  }
-};
-
-template <typename Char>
-struct UdlArg {
-  const Char *str;
-
-  template <typename T>
-  NamedArg<Char> operator=(T &&value) const {
-    return {str, std::forward<T>(value)};
-  }
-};
-
-} // namespace internal
-
-inline namespace literals {
-
-/**
-  \rst
-  C++11 literal equivalent of :func:`fmt::format`.
-
-  **Example**::
-
-    using namespace fmt::literals;
-    std::string message = "The answer is {}"_format(42);
-  \endrst
- */
-inline internal::UdlFormat<char>
-operator"" _format(const char *s, std::size_t) { return {s}; }
-inline internal::UdlFormat<wchar_t>
-operator"" _format(const wchar_t *s, std::size_t) { return {s}; }
-
-/**
-  \rst
-  C++11 literal equivalent of :func:`fmt::arg`.
-
-  **Example**::
-
-    using namespace fmt::literals;
-    print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
-  \endrst
- */
-inline internal::UdlArg<char>
-operator"" _a(const char *s, std::size_t) { return {s}; }
-inline internal::UdlArg<wchar_t>
-operator"" _a(const wchar_t *s, std::size_t) { return {s}; }
-
-} // inline namespace literals
-} // namespace fmt
-#endif // FMT_USE_USER_DEFINED_LITERALS
-
-// Restore warnings.
-#if FMT_GCC_VERSION >= 406
-# pragma GCC diagnostic pop
-#endif
-
-#if defined(__clang__) && !defined(__INTEL_COMPILER)
-# pragma clang diagnostic pop
-#endif
-
-#ifdef FMT_HEADER_ONLY
-# include "format.cc"
-#endif
-
-#endif  // FMT_FORMAT_H_