std::numeric_limits<T>::has_denorm

 

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std::numeric_limits

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numeric_limits::has_denorm

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numeric_limits::denorm_min

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float_round_style

float_denorm_style

 

static const std::float_denorm_style has_denorm;		(until C++11)
static constexpr std::float_denorm_style has_denorm;		(since C++11)

The value of std::numeric_limits<T>::has_denorm identifies the floating-point types that support subnormal values.

Standard specializations

T	value of std::numeric_limits<T>::has_denorm
/* 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	usually std::denorm_present
double	usually std::denorm_present
long double	usually std::denorm_present

See also

denorm_min [static]	returns the smallest positive subnormal value of the given floating-point type (public static member function)
float_denorm_style	indicates floating-point denormalization modes (enum)