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add Char template parameter to to_string

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Alexey Ochapov 2020-09-15 22:35:29 +03:00
parent f674434a67
commit 8e82d7a757
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GPG Key ID: 9DC52E8F031B8DA8
2 changed files with 12 additions and 10 deletions
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2
include/fmt/compile.h
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@ -639,7 +639,7 @@ FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
Args&&... args) {
constexpr basic_string_view<typename S::char_type> str = S();
if (str.size() == 2 && str[0] == '{' && str[1] == '}')
return fmt::to_string(detail::first(args...));
return fmt::to_string<typename S::char_type>(detail::first(args...));
constexpr auto compiled = detail::compile<Args...>(S());
return format(compiled, std::forward<Args>(args)...);
}

20
include/fmt/format.h
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@ -3481,21 +3481,23 @@ arg_join<detail::iterator_t<Range>, detail::sentinel_t<Range>, wchar_t> join(
std::string answer = fmt::to_string(42);
\endrst
*/
template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
inline std::string to_string(const T& value) {
std::string result;
detail::write<char>(std::back_inserter(result), value);
template <typename Char = char, typename T,
FMT_ENABLE_IF(!std::is_integral<T>::value)>
inline std::basic_string<Char> to_string(const T& value) {
std::basic_string<Char> result;
detail::write<Char>(std::back_inserter(result), value);
return result;
}
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
inline std::string to_string(T value) {
template <typename Char = char, typename T,
FMT_ENABLE_IF(std::is_integral<T>::value)>
inline std::basic_string<Char> to_string(T value) {
// The buffer should be large enough to store the number including the sign or
// "false" for bool.
constexpr int max_size = detail::digits10<T>() + 2;
char buffer[max_size > 5 ? max_size : 5];
char* begin = buffer;
return std::string(begin, detail::write<char>(begin, value));
Char buffer[max_size > 5 ? max_size : 5];
Char* begin = buffer;
return std::basic_string<Char>(begin, detail::write<Char>(begin, value));
}
/**