std::numeric_limits<T>::has_denorm
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static const std::float_denorm_style has_denorm; |
(C++11 前) | |
static constexpr std::float_denorm_style has_denorm; |
(C++11 起) (C++23 中已弃用) |
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std::numeric_limits<T>::has_denorm 的值标识支持非规范化值(subnormal values)的浮点类型。
[编辑] 标准特化
T
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std::numeric_limits<T>::has_denorm 的值 |
/* 未特化 */ | std::denorm_absent |
bool | std::denorm_absent |
char | std::denorm_absent |
signed char | std::denorm_absent |
unsigned char | std::denorm_absent |
wchar_t | std::denorm_absent |
char8_t (C++20起) | std::denorm_absent |
char16_t (C++11起) | std::denorm_absent |
char32_t (C++11起) | std::denorm_absent |
short | std::denorm_absent |
unsigned short | std::denorm_absent |
int | std::denorm_absent |
unsigned int | std::denorm_absent |
long | std::denorm_absent |
unsigned long | std::denorm_absent |
long long (C++11起) | std::denorm_absent |
unsigned long long (C++11起) | std::denorm_absent |
float | 通常为 std::denorm_present |
double | 通常为 std::denorm_present |
long double | 通常为 std::denorm_present |
[编辑] 参阅
[静态] |
返回给定浮点类型的最小正非正规化值 (public static member function) |
指示浮点非正规化模式 (enum) |