std::__numeric_limits_base(3cxx) std::__numeric_limits_base(3cxx)
NAME
std::__numeric_limits_base - Part of std::numeric_limits.
SYNOPSIS
Inherited by std::numeric_limits< _Tp >.
Static Public Attributes
static constexpr int digits
static constexpr int digits10
static constexpr float_denorm_style has_denorm
static constexpr bool has_denorm_loss
static constexpr bool has_infinity
static constexpr bool has_quiet_NaN
static constexpr bool has_signaling_NaN
static constexpr bool is_bounded
static constexpr bool is_exact
static constexpr bool is_iec559
static constexpr bool is_integer
static constexpr bool is_modulo
static constexpr bool is_signed
static constexpr bool is_specialized
static constexpr int max_digits10
static constexpr int max_exponent
static constexpr int max_exponent10
static constexpr int min_exponent
static constexpr int min_exponent10
static constexpr int radix
static constexpr float_round_style round_style
static constexpr bool tinyness_before
static constexpr bool traps
Detailed Description
Part of std::numeric_limits.
The static const members are usable as integral constant expressions.
Note
This is a separate class for purposes of efficiency; you should
only access these members as part of an instantiation of the
std::numeric_limits class.
Member Data Documentation
constexpr int std::__numeric_limits_base::digits [static], [constexpr]
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.
constexpr int std::__numeric_limits_base::digits10 [static], [constexpr]
The number of base 10 digits that can be represented without change.
constexpr float_denorm_style std::__numeric_limits_base::has_denorm
[static], [constexpr]
See std::float_denorm_style for more information.
constexpr bool std::__numeric_limits_base::has_denorm_loss [static],
[constexpr]
True if loss of accuracy is detected as a denormalization loss, rather
than as an inexact result.
constexpr bool std::__numeric_limits_base::has_infinity [static],
[constexpr]
True if the type has a representation for positive infinity.
constexpr bool std::__numeric_limits_base::has_quiet_NaN [static],
[constexpr]
True if the type has a representation for a quiet (non-signaling) Not a
Number.
constexpr bool std::__numeric_limits_base::has_signaling_NaN [static],
[constexpr]
True if the type has a representation for a signaling Not a Number.
constexpr bool std::__numeric_limits_base::is_bounded [static],
[constexpr]
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.
constexpr bool std::__numeric_limits_base::is_exact [static], [constexpr]
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.
constexpr bool std::__numeric_limits_base::is_iec559 [static], [constexpr]
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.)
constexpr bool std::__numeric_limits_base::is_integer [static],
[constexpr]
True if the type is integer.
constexpr bool std::__numeric_limits_base::is_modulo [static], [constexpr]
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.
constexpr bool std::__numeric_limits_base::is_signed [static], [constexpr]
True if the type is signed.
constexpr bool std::__numeric_limits_base::is_specialized [static],
[constexpr]
This will be true for all fundamental types (which have
specializations), and false for everything else.
constexpr int std::__numeric_limits_base::max_digits10 [static],
[constexpr]
The number of base 10 digits required to ensure that values which
differ are always differentiated.
constexpr int std::__numeric_limits_base::max_exponent [static],
[constexpr]
The maximum positive integer such that radix raised to the power of
(one less than that integer) is a representable finite floating point
number.
constexpr int std::__numeric_limits_base::max_exponent10 [static],
[constexpr]
The maximum positive integer such that 10 raised to that power is in
the range of representable finite floating point numbers.
constexpr int std::__numeric_limits_base::min_exponent [static],
[constexpr]
The minimum negative integer such that radix raised to the power of
(one less than that integer) is a normalized floating point number.
constexpr int std::__numeric_limits_base::min_exponent10 [static],
[constexpr]
The minimum negative integer such that 10 raised to that power is in
the range of normalized floating point numbers.
constexpr int std::__numeric_limits_base::radix [static], [constexpr]
For integer types, specifies the base of the representation. For
floating types, specifies the base of the exponent representation.
constexpr float_round_style std::__numeric_limits_base::round_style
[static], [constexpr]
See std::float_round_style for more information. This is only
meaningful for floating types; integer types will all be
round_toward_zero.
constexpr bool std::__numeric_limits_base::tinyness_before [static],
[constexpr]
True if tininess is detected before rounding. (see IEC 559)
constexpr bool std::__numeric_limits_base::traps [static], [constexpr]
True if trapping is implemented for this type.
Author
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