std::__numeric_limits_base Struct Reference

Part of std::numeric_limits. More...

Inheritance diagram for std::__numeric_limits_base:

List of all members.

Static Public Attributes
static const bool	is_specialized = false
static const int	digits = 0
static const int	digits10 = 0
static const bool	is_signed = false
static const bool	is_integer = false
static const bool	is_exact = false
static const int	radix = 0
static const int	min_exponent = 0
static const int	min_exponent10 = 0
static const int	max_exponent = 0
static const int	max_exponent10 = 0
static const bool	has_infinity = false
static const bool	has_quiet_NaN = false
static const bool	has_signaling_NaN = false
static const float_denorm_style	has_denorm = denorm_absent
static const bool	has_denorm_loss = false
static const bool	is_iec559 = false
static const bool	is_bounded = false
static const bool	is_modulo = false
static const bool	traps = false
static const bool	tinyness_before = false
static const float_round_style	round_style = round_toward_zero

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Detailed Description

Part of std::numeric_limits.

The static const members are usable as integral constant expressions.

Note:

This is a seperate class for purposes of efficiency; you should only access these members as part of an instantiation of the std::numeric_limits class.

Definition at line 191 of file limits.

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Member Data Documentation

const int std::__numeric_limits_base::digits = 0 [static]

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 200 of file limits.

const int std::__numeric_limits_base::digits10 = 0 [static]

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

Definition at line 202 of file limits.

const float_denorm_style std::__numeric_limits_base::has_denorm = denorm_absent [static]

See std::float_denorm_style for more information.

Definition at line 243 of file limits.

const bool std::__numeric_limits_base::has_denorm_loss = false [static]

"True if loss of accuracy is detected as a denormalization loss, rather than as an inexact result." [18.2.1.2]/42

Definition at line 246 of file limits.

const bool std::__numeric_limits_base::has_infinity = false [static]

True if the type has a representation for positive infinity.

Definition at line 235 of file limits.

const bool std::__numeric_limits_base::has_quiet_NaN = false [static]

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

Definition at line 238 of file limits.

const bool std::__numeric_limits_base::has_signaling_NaN = false [static]

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

Definition at line 241 of file limits.

const bool std::__numeric_limits_base::is_bounded = false [static]

"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." [18.2.1.2]/54

Definition at line 254 of file limits.

const bool std::__numeric_limits_base::is_exact = false [static]

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." [18.2.1.2]/15

Definition at line 215 of file limits.

const bool std::__numeric_limits_base::is_iec559 = false [static]

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 250 of file limits.

const bool std::__numeric_limits_base::is_integer = false [static]

True if the type is integer.

Definition at line 210 of file limits.

const bool std::__numeric_limits_base::is_modulo = false [static]

True if the type is modulo, that is, if it is possible to add two positive numbers and have a result that wraps around to a third number that is less. Typically false for floating types, true for unsigned integers, and true for signed integers.

Definition at line 259 of file limits.

const bool std::__numeric_limits_base::is_signed = false [static]

True if the type is signed.

Definition at line 204 of file limits.

const bool std::__numeric_limits_base::is_specialized = false [static]

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

Definition at line 195 of file limits.

const int std::__numeric_limits_base::max_exponent = 0 [static]

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 229 of file limits.

const int std::__numeric_limits_base::max_exponent10 = 0 [static]

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

Definition at line 232 of file limits.

const int std::__numeric_limits_base::min_exponent = 0 [static]

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 222 of file limits.

const int std::__numeric_limits_base::min_exponent10 = 0 [static]

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

Definition at line 225 of file limits.

const int std::__numeric_limits_base::radix = 0 [static]

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

Definition at line 218 of file limits.

const float_round_style std::__numeric_limits_base::round_style = round_toward_zero [static]

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 268 of file limits.

const bool std::__numeric_limits_base::tinyness_before = false [static]

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

Definition at line 264 of file limits.

const bool std::__numeric_limits_base::traps = false [static]

True if trapping is implemented for this type.

Definition at line 262 of file limits.

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

• limits

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