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Simplify locale handling

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This commit is contained in:
Victor Zverovich
2024-09-22 09:47:09 -07:00
parent 80c4d42c66
commit ff92223549
6 changed files with 38 additions and 51 deletions
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43
include/fmt/format.h
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@ -796,11 +796,6 @@ using is_double_double = bool_constant<std::numeric_limits<T>::digits == 106>;
# define FMT_USE_FULL_CACHE_DRAGONBOX 0
#endif
template <typename T, typename Enable = void>
struct is_locale : std::false_type {};
template <typename T>
struct is_locale<T, void_t<decltype(T::classic())>> : std::true_type {};
// An allocator that uses malloc/free to allow removing dependency on the C++
// standard libary runtime.
template <typename T> struct allocator {
@ -4213,47 +4208,41 @@ FMT_API void format_system_error(detail::buffer<char>& out, int error_code,
// Can be used to report errors from destructors.
FMT_API void report_system_error(int error_code, const char* message) noexcept;
template <typename Locale, FMT_ENABLE_IF(detail::is_locale<Locale>::value)>
auto vformat(const Locale& loc, string_view fmt, format_args args)
inline auto vformat(detail::locale_ref loc, string_view fmt, format_args args)
-> std::string {
auto buf = memory_buffer();
detail::vformat_to(buf, fmt, args, detail::locale_ref(loc));
detail::vformat_to(buf, fmt, args, loc);
return {buf.data(), buf.size()};
}
template <typename Locale, typename... T,
FMT_ENABLE_IF(detail::is_locale<Locale>::value)>
FMT_INLINE auto format(const Locale& loc, format_string<T...> fmt, T&&... args)
-> std::string {
return fmt::vformat(loc, fmt.str, vargs<T...>{{args...}});
template <typename... T>
FMT_INLINE auto format(detail::locale_ref loc, format_string<T...> fmt,
T&&... args) -> std::string {
return vformat(loc, fmt.str, vargs<T...>{{args...}});
}
template <typename OutputIt, typename Locale,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value&&
detail::is_locale<Locale>::value)>
auto vformat_to(OutputIt out, const Locale& loc, string_view fmt,
template <typename OutputIt,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
auto vformat_to(OutputIt out, detail::locale_ref loc, string_view fmt,
format_args args) -> OutputIt {
auto&& buf = detail::get_buffer<char>(out);
detail::vformat_to(buf, fmt, args, detail::locale_ref(loc));
detail::vformat_to(buf, fmt, args, loc);
return detail::get_iterator(buf, out);
}
template <typename OutputIt, typename Locale, typename... T,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value&&
detail::is_locale<Locale>::value)>
FMT_INLINE auto format_to(OutputIt out, const Locale& loc,
template <typename OutputIt, typename... T,
FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
FMT_INLINE auto format_to(OutputIt out, detail::locale_ref loc,
format_string<T...> fmt, T&&... args) -> OutputIt {
return fmt::vformat_to(out, loc, fmt.str, vargs<T...>{{args...}});
}
template <typename Locale, typename... T,
FMT_ENABLE_IF(detail::is_locale<Locale>::value)>
FMT_NODISCARD FMT_INLINE auto formatted_size(const Locale& loc,
template <typename... T>
FMT_NODISCARD FMT_INLINE auto formatted_size(detail::locale_ref loc,
format_string<T...> fmt,
T&&... args) -> size_t {
auto buf = detail::counting_buffer<>();
detail::vformat_to(buf, fmt.str, vargs<T...>{{args...}},
detail::locale_ref(loc));
detail::vformat_to(buf, fmt.str, vargs<T...>{{args...}}, loc);
return buf.count();
}