std::numeric_limits<T>::has_denorm
< cpp | types | numeric limits
static const std::float_denorm_style has_denorm; |
(C++11 前) | |
static constexpr std::float_denorm_style has_denorm; |
(C++11 起) | |
std::numeric_limits<T>::has_denorm 的值鉴别浮点类型如何支持非正规值。
标准特化
T
|
std::numeric_limits<T>::has_denorm 的值 |
/* non-specialized */ | 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 | std::denorm_absent |
char16_t | std::denorm_absent |
char32_t | 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 | std::denorm_absent |
unsigned long long | 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 |
参阅
[静态] |
返回给定浮点类型的最小正非正规值 (公开静态成员函数) |
指示浮点非规格化模式 (枚举) |