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3rdparty/spdlog-1.9.2/src/fmt.cpp 2.78 KB
3d2ab595   Hu Chunming   支持gb28181
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  // Slightly modified version of fmt lib's format.cc source file.
  // Copyright (c) 2012 - 2016, Victor Zverovich
  // All rights reserved.
  
  #ifndef SPDLOG_COMPILED_LIB
  #    error Please define SPDLOG_COMPILED_LIB to compile this file.
  #endif
  
  #if !defined(SPDLOG_FMT_EXTERNAL)
  #    include <spdlog/fmt/bundled/format-inl.h>
  
  FMT_BEGIN_NAMESPACE
  namespace detail {
  
  template<typename T>
  int format_float(char *buf, std::size_t size, const char *format, int precision, T value)
  {
  #    ifdef FMT_FUZZ
      if (precision > 100000)
          throw std::runtime_error("fuzz mode - avoid large allocation inside snprintf");
  #    endif
      // Suppress the warning about nonliteral format string.
      int (*snprintf_ptr)(char *, size_t, const char *, ...) = FMT_SNPRINTF;
      return precision < 0 ? snprintf_ptr(buf, size, format, value) : snprintf_ptr(buf, size, format, precision, value);
  }
  
  template FMT_API dragonbox::decimal_fp<float> dragonbox::to_decimal(float x) FMT_NOEXCEPT;
  template FMT_API dragonbox::decimal_fp<double> dragonbox::to_decimal(double x) FMT_NOEXCEPT;
  } // namespace detail
  
  // Workaround a bug in MSVC2013 that prevents instantiation of format_float.
  int (*instantiate_format_float)(double, int, detail::float_specs, detail::buffer<char> &) = detail::format_float;
  
  #    ifndef FMT_STATIC_THOUSANDS_SEPARATOR
  template FMT_API detail::locale_ref::locale_ref(const std::locale &loc);
  template FMT_API std::locale detail::locale_ref::get<std::locale>() const;
  #    endif
  
  // Explicit instantiations for char.
  
  template FMT_API auto detail::thousands_sep_impl(locale_ref) -> thousands_sep_result<char>;
  template FMT_API char detail::decimal_point_impl(locale_ref);
  
  template FMT_API void detail::buffer<char>::append(const char *, const char *);
  
  // DEPRECATED!
  // There is no correspondent extern template in format.h because of
  // incompatibility between clang and gcc (#2377).
  template FMT_API void detail::vformat_to(
      detail::buffer<char> &, string_view, basic_format_args<FMT_BUFFER_CONTEXT(char)>, detail::locale_ref);
  
  template FMT_API int detail::snprintf_float(double, int, detail::float_specs, detail::buffer<char> &);
  template FMT_API int detail::snprintf_float(long double, int, detail::float_specs, detail::buffer<char> &);
  template FMT_API int detail::format_float(double, int, detail::float_specs, detail::buffer<char> &);
  template FMT_API int detail::format_float(long double, int, detail::float_specs, detail::buffer<char> &);
  
  // Explicit instantiations for wchar_t.
  
  template FMT_API auto detail::thousands_sep_impl(locale_ref) -> thousands_sep_result<wchar_t>;
  template FMT_API wchar_t detail::decimal_point_impl(locale_ref);
  
  template FMT_API void detail::buffer<wchar_t>::append(const wchar_t *, const wchar_t *);
  
  template struct detail::basic_data<void>;
  
  FMT_END_NAMESPACE
  
  #endif // !SPDLOG_FMT_EXTERNAL