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Add is_floating_point that works with __float128

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Victor Zverovich 2022-03-15 08:21:20 -07:00
parent 26bffce66d
commit bc654faf82
1 changed files with 15 additions and 11 deletions
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26
include/fmt/format.h
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@ -667,6 +667,17 @@ inline auto code_point_index(basic_string_view<char8_type> s, size_t n)
return s.size(); return s.size();
} }
#ifdef __SIZEOF_FLOAT128__
using float128 = __float128;
#else
using float128 = void;
#endif
template <typename T> using is_float128 = std::is_same<T, float128>;
template <typename T>
using is_floating_point =
bool_constant<std::is_floating_point<T>::value || is_float128<T>::value>;
template <typename T, bool = std::is_floating_point<T>::value> template <typename T, bool = std::is_floating_point<T>::value>
struct is_fast_float : bool_constant<std::numeric_limits<T>::is_iec559 && struct is_fast_float : bool_constant<std::numeric_limits<T>::is_iec559 &&
sizeof(T) <= sizeof(double)> {}; sizeof(T) <= sizeof(double)> {};
@ -935,7 +946,7 @@ FMT_CONSTEXPR auto is_negative(T) -> bool {
return false; return false;
} }
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> template <typename T>
FMT_CONSTEXPR auto is_supported_floating_point(T) -> uint16_t { FMT_CONSTEXPR auto is_supported_floating_point(T) -> uint16_t {
return (std::is_same<T, float>::value && FMT_USE_FLOAT) || return (std::is_same<T, float>::value && FMT_USE_FLOAT) ||
(std::is_same<T, double>::value && FMT_USE_DOUBLE) || (std::is_same<T, double>::value && FMT_USE_DOUBLE) ||
@ -2157,13 +2168,6 @@ FMT_CONSTEXPR20 auto write_float(OutputIt out, const DecimalFP& fp,
} }
} }
#ifdef __SIZEOF_FLOAT128__
using float128 = __float128;
#else
using float128 = void;
#endif
template <typename T> using is_float128 = std::is_same<T, float128>;
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value && template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value &&
!is_float128<T>::value)> !is_float128<T>::value)>
FMT_CONSTEXPR20 bool isfinite(T value) { FMT_CONSTEXPR20 bool isfinite(T value) {
@ -2179,7 +2183,7 @@ template <typename T> constexpr bool isnan(T value) {
return value != value; // std::isnan doesn't support __float128. return value != value; // std::isnan doesn't support __float128.
} }
template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> template <typename T, FMT_ENABLE_IF(is_floating_point<T>::value)>
FMT_INLINE FMT_CONSTEXPR bool signbit(T value) { FMT_INLINE FMT_CONSTEXPR bool signbit(T value) {
if (is_constant_evaluated()) { if (is_constant_evaluated()) {
#ifdef __cpp_if_constexpr #ifdef __cpp_if_constexpr
@ -2193,7 +2197,7 @@ FMT_INLINE FMT_CONSTEXPR bool signbit(T value) {
} }
template <typename Char, typename OutputIt, typename T, template <typename Char, typename OutputIt, typename T,
FMT_ENABLE_IF(std::is_floating_point<T>::value)> FMT_ENABLE_IF(is_floating_point<T>::value)>
FMT_CONSTEXPR20 auto write(OutputIt out, T value, FMT_CONSTEXPR20 auto write(OutputIt out, T value,
basic_format_specs<Char> specs, locale_ref loc = {}) basic_format_specs<Char> specs, locale_ref loc = {})
-> OutputIt { -> OutputIt {
@ -2271,7 +2275,7 @@ FMT_CONSTEXPR20 auto write(OutputIt out, T value) -> OutputIt {
} }
template <typename Char, typename OutputIt, typename T, template <typename Char, typename OutputIt, typename T,
FMT_ENABLE_IF(std::is_floating_point<T>::value && FMT_ENABLE_IF(is_floating_point<T>::value &&
!is_fast_float<T>::value)> !is_fast_float<T>::value)>
inline auto write(OutputIt out, T value) -> OutputIt { inline auto write(OutputIt out, T value) -> OutputIt {
return write(out, value, basic_format_specs<Char>()); return write(out, value, basic_format_specs<Char>());