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125 lines
5.6 KiB
C++
125 lines
5.6 KiB
C++
// Formatting library for C++
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//
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// Copyright (c) 2012 - 2016, Victor Zverovich
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// All rights reserved.
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//
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// For the license information refer to format.h.
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#include "fmt/format-inl.h"
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FMT_BEGIN_NAMESPACE
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namespace detail {
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// DEPRECATED!
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template <typename T = void> struct basic_data {
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FMT_API static constexpr const char digits[100][2] = {
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{'0', '0'}, {'0', '1'}, {'0', '2'}, {'0', '3'}, {'0', '4'}, {'0', '5'},
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{'0', '6'}, {'0', '7'}, {'0', '8'}, {'0', '9'}, {'1', '0'}, {'1', '1'},
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{'1', '2'}, {'1', '3'}, {'1', '4'}, {'1', '5'}, {'1', '6'}, {'1', '7'},
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{'1', '8'}, {'1', '9'}, {'2', '0'}, {'2', '1'}, {'2', '2'}, {'2', '3'},
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{'2', '4'}, {'2', '5'}, {'2', '6'}, {'2', '7'}, {'2', '8'}, {'2', '9'},
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{'3', '0'}, {'3', '1'}, {'3', '2'}, {'3', '3'}, {'3', '4'}, {'3', '5'},
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{'3', '6'}, {'3', '7'}, {'3', '8'}, {'3', '9'}, {'4', '0'}, {'4', '1'},
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{'4', '2'}, {'4', '3'}, {'4', '4'}, {'4', '5'}, {'4', '6'}, {'4', '7'},
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{'4', '8'}, {'4', '9'}, {'5', '0'}, {'5', '1'}, {'5', '2'}, {'5', '3'},
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{'5', '4'}, {'5', '5'}, {'5', '6'}, {'5', '7'}, {'5', '8'}, {'5', '9'},
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{'6', '0'}, {'6', '1'}, {'6', '2'}, {'6', '3'}, {'6', '4'}, {'6', '5'},
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{'6', '6'}, {'6', '7'}, {'6', '8'}, {'6', '9'}, {'7', '0'}, {'7', '1'},
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{'7', '2'}, {'7', '3'}, {'7', '4'}, {'7', '5'}, {'7', '6'}, {'7', '7'},
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{'7', '8'}, {'7', '9'}, {'8', '0'}, {'8', '1'}, {'8', '2'}, {'8', '3'},
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{'8', '4'}, {'8', '5'}, {'8', '6'}, {'8', '7'}, {'8', '8'}, {'8', '9'},
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{'9', '0'}, {'9', '1'}, {'9', '2'}, {'9', '3'}, {'9', '4'}, {'9', '5'},
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{'9', '6'}, {'9', '7'}, {'9', '8'}, {'9', '9'}};
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FMT_API static constexpr const char hex_digits[] = "0123456789abcdef";
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FMT_API static constexpr const char signs[4] = {0, '-', '+', ' '};
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FMT_API static constexpr const char left_padding_shifts[5] = {31, 31, 0, 1,
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0};
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FMT_API static constexpr const char right_padding_shifts[5] = {0, 31, 0, 1,
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0};
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FMT_API static constexpr const unsigned prefixes[4] = {0, 0, 0x1000000u | '+',
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0x1000000u | ' '};
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};
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#ifdef FMT_SHARED
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// Required for -flto, -fivisibility=hidden and -shared to work
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extern template struct basic_data<void>;
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#endif
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#if __cplusplus < 201703L
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// DEPRECATED! These are here only for ABI compatiblity.
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template <typename T> constexpr const char basic_data<T>::digits[][2];
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template <typename T> constexpr const char basic_data<T>::hex_digits[];
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template <typename T> constexpr const char basic_data<T>::signs[];
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template <typename T> constexpr const char basic_data<T>::left_padding_shifts[];
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template <typename T>
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constexpr const char basic_data<T>::right_padding_shifts[];
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template <typename T> constexpr const unsigned basic_data<T>::prefixes[];
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#endif
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template <typename T>
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int format_float(char* buf, std::size_t size, const char* format, int precision,
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T value) {
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#ifdef FMT_FUZZ
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if (precision > 100000)
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throw std::runtime_error(
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"fuzz mode - avoid large allocation inside snprintf");
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#endif
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// Suppress the warning about nonliteral format string.
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int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF;
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return precision < 0 ? snprintf_ptr(buf, size, format, value)
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: snprintf_ptr(buf, size, format, precision, value);
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}
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template FMT_API dragonbox::decimal_fp<float> dragonbox::to_decimal(float x)
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FMT_NOEXCEPT;
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template FMT_API dragonbox::decimal_fp<double> dragonbox::to_decimal(double x)
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FMT_NOEXCEPT;
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} // namespace detail
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// Workaround a bug in MSVC2013 that prevents instantiation of format_float.
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int (*instantiate_format_float)(double, int, detail::float_specs,
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detail::buffer<char>&) = detail::format_float;
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#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
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template FMT_API detail::locale_ref::locale_ref(const std::locale& loc);
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template FMT_API std::locale detail::locale_ref::get<std::locale>() const;
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#endif
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// Explicit instantiations for char.
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template FMT_API auto detail::thousands_sep_impl(locale_ref)
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-> thousands_sep_result<char>;
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template FMT_API char detail::decimal_point_impl(locale_ref);
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template FMT_API void detail::buffer<char>::append(const char*, const char*);
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// DEPRECATED!
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// There is no correspondent extern template in format.h because of
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// incompatibility between clang and gcc (#2377).
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template FMT_API void detail::vformat_to(
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detail::buffer<char>&, string_view,
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basic_format_args<FMT_BUFFER_CONTEXT(char)>, detail::locale_ref);
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template FMT_API int detail::snprintf_float(double, int, detail::float_specs,
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detail::buffer<char>&);
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template FMT_API int detail::snprintf_float(long double, int,
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detail::float_specs,
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detail::buffer<char>&);
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template FMT_API int detail::format_float(double, int, detail::float_specs,
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detail::buffer<char>&);
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template FMT_API int detail::format_float(long double, int, detail::float_specs,
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detail::buffer<char>&);
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// Explicit instantiations for wchar_t.
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template FMT_API auto detail::thousands_sep_impl(locale_ref)
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-> thousands_sep_result<wchar_t>;
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template FMT_API wchar_t detail::decimal_point_impl(locale_ref);
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template FMT_API void detail::buffer<wchar_t>::append(const wchar_t*,
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const wchar_t*);
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template struct detail::basic_data<void>;
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FMT_END_NAMESPACE
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