std::numeric_limits< long double > Struct Reference

#include <limits>

Inheritance diagram for std::numeric_limits< long double >:

Static Public Member Functions
static constexpr long double	denorm_min () noexcept
static constexpr long double	denorm_min () noexcept
static constexpr long double	epsilon () noexcept
static constexpr long double	epsilon () noexcept
static constexpr long double	infinity () noexcept
static constexpr long double	infinity () noexcept
static constexpr long double	lowest () noexcept
static constexpr long double	lowest () noexcept
static constexpr long double	max () noexcept
static constexpr long double	max () noexcept
static constexpr long double	min () noexcept
static constexpr long double	min () noexcept
static constexpr long double	quiet_NaN () noexcept
static constexpr long double	quiet_NaN () noexcept
static constexpr long double	round_error () noexcept
static constexpr long double	round_error () noexcept
static constexpr long double	signaling_NaN () noexcept
static constexpr long double	signaling_NaN () noexcept

Static Public Attributes
static constexpr int	digits
static constexpr int	digits
static constexpr int	digits10
static constexpr int	digits10
static constexpr float_denorm_style	has_denorm
static constexpr float_denorm_style	has_denorm
static constexpr bool	has_denorm_loss
static constexpr bool	has_denorm_loss
static constexpr bool	has_infinity
static constexpr bool	has_infinity
static constexpr bool	has_quiet_NaN
static constexpr bool	has_quiet_NaN
static constexpr bool	has_signaling_NaN
static constexpr bool	has_signaling_NaN
static constexpr bool	is_bounded
static constexpr bool	is_bounded
static constexpr bool	is_exact
static constexpr bool	is_exact
static constexpr bool	is_iec559
static constexpr bool	is_iec559
static constexpr bool	is_integer
static constexpr bool	is_integer
static constexpr bool	is_modulo
static constexpr bool	is_modulo
static constexpr bool	is_signed
static constexpr bool	is_signed
static constexpr bool	is_specialized
static constexpr bool	is_specialized
static constexpr int	max_digits10
static constexpr int	max_digits10
static constexpr int	max_exponent
static constexpr int	max_exponent
static constexpr int	max_exponent10
static constexpr int	max_exponent10
static constexpr int	min_exponent
static constexpr int	min_exponent
static constexpr int	min_exponent10
static constexpr int	min_exponent10
static constexpr int	radix
static constexpr int	radix
static constexpr float_round_style	round_style
static constexpr float_round_style	round_style
static constexpr bool	tinyness_before
static constexpr bool	tinyness_before
static constexpr bool	traps
static constexpr bool	traps

Detailed Description

numeric_limits<long double> specialization.

Definition at line 1826 of file limits.

Member Function Documentation

denorm_min() [1/2]

static constexpr long double std::numeric_limits< long double >::denorm_min ( )

inlinestaticconstexprnoexcept

The minimum positive denormalized value. For types where has_denorm is false, this is the minimum positive normalized value.

Definition at line 364 of file limits.

denorm_min() [2/2]

static constexpr long double std::numeric_limits< long double >::denorm_min ( )

inlinestaticconstexprnoexcept

Definition at line 1881 of file limits.

epsilon() [1/2]

static constexpr long double std::numeric_limits< long double >::epsilon ( )

inlinestaticconstexprnoexcept

The machine epsilon: the difference between 1 and the least value greater than 1 that is representable.

Definition at line 340 of file limits.

epsilon() [2/2]

static constexpr long double std::numeric_limits< long double >::epsilon ( )

inlinestaticconstexprnoexcept

Definition at line 1853 of file limits.

infinity() [1/2]

static constexpr long double std::numeric_limits< long double >::infinity ( )

inlinestaticconstexprnoexcept

The representation of positive infinity, if has_infinity.

Definition at line 348 of file limits.

infinity() [2/2]

static constexpr long double std::numeric_limits< long double >::infinity ( )

inlinestaticconstexprnoexcept

Definition at line 1872 of file limits.

lowest() [1/2]

static constexpr long double std::numeric_limits< long double >::lowest ( )

inlinestaticconstexprnoexcept

A finite value x such that there is no other finite value y where y < x.

Definition at line 334 of file limits.

lowest() [2/2]

static constexpr long double std::numeric_limits< long double >::lowest ( )

inlinestaticconstexprnoexcept

Definition at line 1838 of file limits.

max() [1/2]

static constexpr long double std::numeric_limits< long double >::max ( )

inlinestaticconstexprnoexcept

The maximum finite value.

Definition at line 328 of file limits.

max() [2/2]

static constexpr long double std::numeric_limits< long double >::max ( )

inlinestaticconstexprnoexcept

Definition at line 1834 of file limits.

min() [1/2]

static constexpr long double std::numeric_limits< long double >::min ( )

inlinestaticconstexprnoexcept

The minimum finite value, or for floating types with denormalization, the minimum positive normalized value.

Definition at line 324 of file limits.

min() [2/2]

static constexpr long double std::numeric_limits< long double >::min ( )

inlinestaticconstexprnoexcept

Definition at line 1831 of file limits.

quiet_NaN() [1/2]

static constexpr long double std::numeric_limits< long double >::quiet_NaN ( )

inlinestaticconstexprnoexcept

The representation of a quiet Not a Number, if has_quiet_NaN.

Definition at line 353 of file limits.

quiet_NaN() [2/2]

static constexpr long double std::numeric_limits< long double >::quiet_NaN ( )

inlinestaticconstexprnoexcept

Definition at line 1875 of file limits.

round_error() [1/2]

static constexpr long double std::numeric_limits< long double >::round_error ( )

inlinestaticconstexprnoexcept

The maximum rounding error measurement (see LIA-1).

Definition at line 344 of file limits.

round_error() [2/2]

static constexpr long double std::numeric_limits< long double >::round_error ( )

inlinestaticconstexprnoexcept

Definition at line 1856 of file limits.

signaling_NaN() [1/2]

static constexpr long double std::numeric_limits< long double >::signaling_NaN ( )

inlinestaticconstexprnoexcept

The representation of a signaling Not a Number, if has_signaling_NaN.

Definition at line 358 of file limits.

signaling_NaN() [2/2]

static constexpr long double std::numeric_limits< long double >::signaling_NaN ( )

inlinestaticconstexprnoexcept

Definition at line 1878 of file limits.

Member Data Documentation

digits [1/2]

int std::__numeric_limits_base::digits

staticconstexpr

The number of radix digits that be represented without change: for integer types, the number of non-sign bits in the mantissa; for floating types, the number of radix digits in the mantissa.

Definition at line 218 of file limits.

digits [2/2]

int std::numeric_limits< long double >::digits

staticconstexpr

Definition at line 1841 of file limits.

digits10 [1/2]

int std::__numeric_limits_base::digits10

staticconstexpr

The number of base 10 digits that can be represented without change.

Definition at line 221 of file limits.

digits10 [2/2]

int std::numeric_limits< long double >::digits10

staticconstexpr

Definition at line 1842 of file limits.

has_denorm [1/2]

float_denorm_style std::__numeric_limits_base::has_denorm

staticconstexpr

See std::float_denorm_style for more information.

Definition at line 273 of file limits.

has_denorm [2/2]

float_denorm_style std::numeric_limits< long double >::has_denorm

staticconstexpr

Definition at line 1866 of file limits.

has_denorm_loss [1/2]

bool std::__numeric_limits_base::has_denorm_loss

staticconstexpr

True if loss of accuracy is detected as a denormalization loss, rather than as an inexact result.

Definition at line 277 of file limits.

has_denorm_loss [2/2]

bool std::numeric_limits< long double >::has_denorm_loss

staticconstexpr

Definition at line 1868 of file limits.

has_infinity [1/2]

bool std::__numeric_limits_base::has_infinity

staticconstexpr

True if the type has a representation for positive infinity.

Definition at line 262 of file limits.

has_infinity [2/2]

bool std::numeric_limits< long double >::has_infinity

staticconstexpr

Definition at line 1863 of file limits.

has_quiet_NaN [1/2]

bool std::__numeric_limits_base::has_quiet_NaN

staticconstexpr

True if the type has a representation for a quiet (non-signaling) Not a Number.

Definition at line 266 of file limits.

has_quiet_NaN [2/2]

bool std::numeric_limits< long double >::has_quiet_NaN

staticconstexpr

Definition at line 1864 of file limits.

has_signaling_NaN [1/2]

bool std::__numeric_limits_base::has_signaling_NaN

staticconstexpr

True if the type has a representation for a signaling Not a Number.

Definition at line 270 of file limits.

has_signaling_NaN [2/2]

bool std::numeric_limits< long double >::has_signaling_NaN

staticconstexpr

Definition at line 1865 of file limits.

is_bounded [1/2]

bool std::__numeric_limits_base::is_bounded

staticconstexpr

True if the set of values representable by the type is finite. All built-in types are bounded, this member would be false for arbitrary precision types.

Definition at line 286 of file limits.

is_bounded [2/2]

bool std::numeric_limits< long double >::is_bounded

staticconstexpr

Definition at line 1885 of file limits.

is_exact [1/2]

bool std::__numeric_limits_base::is_exact

staticconstexpr

True if the type uses an exact representation. All integer types are exact, but not all exact types are integer. For example, rational and fixed-exponent representations are exact but not integer.

Definition at line 238 of file limits.

is_exact [2/2]

bool std::numeric_limits< long double >::is_exact

staticconstexpr

Definition at line 1849 of file limits.

is_iec559 [1/2]

bool std::__numeric_limits_base::is_iec559

staticconstexpr

True if-and-only-if the type adheres to the IEC 559 standard, also known as IEEE 754. (Only makes sense for floating point types.)

Definition at line 281 of file limits.

is_iec559 [2/2]

bool std::numeric_limits< long double >::is_iec559

staticconstexpr

Definition at line 1883 of file limits.

is_integer [1/2]

bool std::__numeric_limits_base::is_integer

staticconstexpr

True if the type is integer.

Definition at line 233 of file limits.

is_integer [2/2]

bool std::numeric_limits< long double >::is_integer

staticconstexpr

Definition at line 1848 of file limits.

is_modulo [1/2]

bool std::__numeric_limits_base::is_modulo

staticconstexpr

True if the type is modulo. A type is modulo if, for any operation involving +, -, or * on values of that type whose result would fall outside the range [min(),max()], the value returned differs from the true value by an integer multiple of max() - min() + 1. On most machines, this is false for floating types, true for unsigned integers, and true for signed integers. See PR22200 about signed integers.

Definition at line 295 of file limits.

is_modulo [2/2]

bool std::numeric_limits< long double >::is_modulo

staticconstexpr

Definition at line 1886 of file limits.

is_signed [1/2]

bool std::__numeric_limits_base::is_signed

staticconstexpr

True if the type is signed.

Definition at line 230 of file limits.

is_signed [2/2]

bool std::numeric_limits< long double >::is_signed

staticconstexpr

Definition at line 1847 of file limits.

is_specialized [1/2]

bool std::__numeric_limits_base::is_specialized

staticconstexpr

This will be true for all fundamental types (which have specializations), and false for everything else.

Definition at line 213 of file limits.

is_specialized [2/2]

bool std::numeric_limits< long double >::is_specialized

staticconstexpr

Definition at line 1828 of file limits.

max_digits10 [1/2]

int std::__numeric_limits_base::max_digits10

staticconstexpr

The number of base 10 digits required to ensure that values which differ are always differentiated.

Definition at line 226 of file limits.

max_digits10 [2/2]

int std::numeric_limits< long double >::max_digits10

staticconstexpr

Definition at line 1844 of file limits.

max_exponent [1/2]

int std::__numeric_limits_base::max_exponent

staticconstexpr

The maximum positive integer such that radix raised to the power of (one less than that integer) is a representable finite floating point number.

Definition at line 255 of file limits.

max_exponent [2/2]

int std::numeric_limits< long double >::max_exponent

staticconstexpr

Definition at line 1860 of file limits.

max_exponent10 [1/2]

int std::__numeric_limits_base::max_exponent10

staticconstexpr

The maximum positive integer such that 10 raised to that power is in the range of representable finite floating point numbers.

Definition at line 259 of file limits.

max_exponent10 [2/2]

int std::numeric_limits< long double >::max_exponent10

staticconstexpr

Definition at line 1861 of file limits.

min_exponent [1/2]

int std::__numeric_limits_base::min_exponent

staticconstexpr

The minimum negative integer such that radix raised to the power of (one less than that integer) is a normalized floating point number.

Definition at line 246 of file limits.

min_exponent [2/2]

int std::numeric_limits< long double >::min_exponent

staticconstexpr

Definition at line 1858 of file limits.

min_exponent10 [1/2]

int std::__numeric_limits_base::min_exponent10

staticconstexpr

The minimum negative integer such that 10 raised to that power is in the range of normalized floating point numbers.

Definition at line 250 of file limits.

min_exponent10 [2/2]

int std::numeric_limits< long double >::min_exponent10

staticconstexpr

Definition at line 1859 of file limits.

radix [1/2]

int std::__numeric_limits_base::radix

staticconstexpr

For integer types, specifies the base of the representation. For floating types, specifies the base of the exponent representation.

Definition at line 242 of file limits.

radix [2/2]

int std::numeric_limits< long double >::radix

staticconstexpr

Definition at line 1850 of file limits.

round_style [1/2]

float_round_style std::__numeric_limits_base::round_style

staticconstexpr

See std::float_round_style for more information. This is only meaningful for floating types; integer types will all be round_toward_zero.

Definition at line 306 of file limits.

round_style [2/2]

float_round_style std::numeric_limits< long double >::round_style

staticconstexpr

Definition at line 1891 of file limits.

tinyness_before [1/2]

bool std::__numeric_limits_base::tinyness_before

staticconstexpr

True if tininess is detected before rounding. (see IEC 559)

Definition at line 301 of file limits.

tinyness_before [2/2]

bool std::numeric_limits< long double >::tinyness_before

staticconstexpr

Definition at line 1889 of file limits.

traps [1/2]

bool std::__numeric_limits_base::traps

staticconstexpr

True if trapping is implemented for this type.

Definition at line 298 of file limits.

traps [2/2]

bool std::numeric_limits< long double >::traps

staticconstexpr

Definition at line 1888 of file limits.

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The documentation for this struct was generated from the following file:

• limits