libstdc++
std::numeric_limits< long double > Struct Reference

#include <limits>

Inheritance diagram for std::numeric_limits< long double >:
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Static Public Member Functions

static constexpr long double denorm_min () noexcept
static constexpr long double epsilon () noexcept
static constexpr long double infinity () noexcept
static constexpr long double lowest () noexcept
static constexpr long double max () noexcept
static constexpr long double min () noexcept
static constexpr long double quiet_NaN () noexcept
static constexpr long double round_error () 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 1871 of file limits.

Member Function Documentation

◆ denorm_min()

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

Definition at line 1928 of file limits.

◆ epsilon()

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

Definition at line 1898 of file limits.

◆ infinity()

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

Definition at line 1919 of file limits.

◆ lowest()

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

Definition at line 1883 of file limits.

◆ max()

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

Definition at line 1879 of file limits.

◆ min()

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

Definition at line 1876 of file limits.

◆ quiet_NaN()

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

Definition at line 1922 of file limits.

◆ round_error()

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

Definition at line 1901 of file limits.

◆ signaling_NaN()

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

Definition at line 1925 of file limits.

Member Data Documentation

◆ digits [1/2]

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

Definition at line 1886 of file limits.

◆ digits [2/2]

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 224 of file limits.

◆ digits10 [1/2]

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

Definition at line 1887 of file limits.

◆ digits10 [2/2]

int std::__numeric_limits_base::digits10
staticconstexpr

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

Definition at line 227 of file limits.

◆ has_denorm [1/2]

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

Definition at line 1912 of file limits.

◆ has_denorm [2/2]

float_denorm_style std::__numeric_limits_base::has_denorm
staticconstexpr

See std::float_denorm_style for more information.

Definition at line 280 of file limits.

◆ has_denorm_loss [1/2]

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

Definition at line 1915 of file limits.

◆ has_denorm_loss [2/2]

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 285 of file limits.

◆ has_infinity [1/2]

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

Definition at line 1908 of file limits.

◆ has_infinity [2/2]

bool std::__numeric_limits_base::has_infinity
staticconstexpr

True if the type has a representation for positive infinity.

Definition at line 268 of file limits.

◆ has_quiet_NaN [1/2]

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

Definition at line 1909 of file limits.

◆ has_quiet_NaN [2/2]

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 272 of file limits.

◆ has_signaling_NaN [1/2]

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

Definition at line 1910 of file limits.

◆ has_signaling_NaN [2/2]

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 276 of file limits.

◆ is_bounded [1/2]

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

Definition at line 1932 of file limits.

◆ is_bounded [2/2]

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 294 of file limits.

◆ is_exact [1/2]

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

Definition at line 1894 of file limits.

◆ is_exact [2/2]

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 244 of file limits.

◆ is_iec559 [1/2]

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

Definition at line 1930 of file limits.

◆ is_iec559 [2/2]

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 289 of file limits.

◆ is_integer [1/2]

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

Definition at line 1893 of file limits.

◆ is_integer [2/2]

bool std::__numeric_limits_base::is_integer
staticconstexpr

True if the type is integer.

Definition at line 239 of file limits.

◆ is_modulo [1/2]

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

Definition at line 1933 of file limits.

◆ is_modulo [2/2]

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 303 of file limits.

◆ is_signed [1/2]

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

Definition at line 1892 of file limits.

◆ is_signed [2/2]

bool std::__numeric_limits_base::is_signed
staticconstexpr

True if the type is signed.

Definition at line 236 of file limits.

◆ is_specialized [1/2]

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

Definition at line 1873 of file limits.

◆ is_specialized [2/2]

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 219 of file limits.

◆ max_digits10 [1/2]

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

Definition at line 1889 of file limits.

◆ max_digits10 [2/2]

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 232 of file limits.

◆ max_exponent [1/2]

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

Definition at line 1905 of file limits.

◆ max_exponent [2/2]

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 261 of file limits.

◆ max_exponent10 [1/2]

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

Definition at line 1906 of file limits.

◆ max_exponent10 [2/2]

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 265 of file limits.

◆ min_exponent [1/2]

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

Definition at line 1903 of file limits.

◆ min_exponent [2/2]

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 252 of file limits.

◆ min_exponent10 [1/2]

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

Definition at line 1904 of file limits.

◆ min_exponent10 [2/2]

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 256 of file limits.

◆ radix [1/2]

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

Definition at line 1895 of file limits.

◆ radix [2/2]

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 248 of file limits.

◆ round_style [1/2]

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

Definition at line 1938 of file limits.

◆ round_style [2/2]

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 314 of file limits.

◆ tinyness_before [1/2]

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

Definition at line 1936 of file limits.

◆ tinyness_before [2/2]

bool std::__numeric_limits_base::tinyness_before
staticconstexpr

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

Definition at line 309 of file limits.

◆ traps [1/2]

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

Definition at line 1935 of file limits.

◆ traps [2/2]

bool std::__numeric_limits_base::traps
staticconstexpr

True if trapping is implemented for this type.

Definition at line 306 of file limits.

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