Constants

This file contains functionality for various constant values used in libsemigroups.

Typedefs
using	LimitMax = detail::Constant<-2, detail::Max>
	Type for the maximum value of something.
using	NegativeInfinity = detail::Constant<0, detail::Min>
	Type for negative infinity.
using	PositiveInfinity = detail::Constant<-1, detail::Max>
	Type for positive infinity.
using	Undefined = detail::Constant<0, detail::Max>
	Type for undefined values.

Variables
constexpr std::chrono::nanoseconds	FOREVER = std::chrono::nanoseconds::max()
	Value indicating forever (system dependent but possibly approx. 292 years).
LimitMax const	LIMIT_MAX
	Value for the maximum of something.
NegativeInfinity const	NEGATIVE_INFINITY
	Value for negative infinity.
PositiveInfinity const	POSITIVE_INFINITY
	Value for positive infinity.
Undefined const	UNDEFINED
	Value for something undefined.

Typedef Documentation

LimitMax

using LimitMax = detail::Constant<-2, detail::Max>

Type for the maximum value of something.

NegativeInfinity

using NegativeInfinity = detail::Constant<0, detail::Min>

Type for negative infinity.

PositiveInfinity

using PositiveInfinity = detail::Constant<-1, detail::Max>

Type for positive infinity.

Undefined

using Undefined = detail::Constant<0, detail::Max>

Type for undefined values.

Variable Documentation

FOREVER

std::chrono::nanoseconds FOREVER = std::chrono::nanoseconds::max()

constexpr

Defined in runner.hpp.

A pseudonym for std::chrono::nanoseconds::max().

LIMIT_MAX

LimitMax const LIMIT_MAX

extern

This variable represents the maximum value that certain function parameters can have. LIMIT_MAX is comparable via ==, !=, <, > with any integral value (signed or unsigned), and is comparable to any other constant via == and !=, but not by <, >, <= and >=.

NEGATIVE_INFINITY

NegativeInfinity const NEGATIVE_INFINITY

extern

This variable represents \(-\infty\). NEGATIVE_INFINITY is comparable via ==, !=, <, <=, >, >= with any signed integral value and with POSITIVE_INFINITY, and is comparable to any other constant via == and !=.

POSITIVE_INFINITY

PositiveInfinity const POSITIVE_INFINITY

extern

This variable represents \(\infty\). POSITIVE_INFINITY is comparable via ==, !=, <, <=, >, >= with any integral value (signed or unsigned) and with NEGATIVE_INFINITY, and is comparable to any other constant via == and !=, but not by <, <=, > and >=.

UNDEFINED

Undefined const UNDEFINED

extern

This variable is used to indicate that a value is undefined. UNDEFINED is comparable with any integral value (signed or unsigned) or constant via ==, <=, >= and != but not via < or >.