std::integral_constant< Type, Value > Class Template Reference

A helper class to represent a compile-time constant with the specified type and value. Instances of the type are implicitly convertible to the specified type and are nullary-invocable, yielding the specified type. The result of such a conversion or invocation is the specified value. The value member is a constant of the specified type, holding the specified value. More...

Public Types
using	type = integral_constant
	The type of this class.
using	value_type = Type
	The type of the value.

Public Member Functions
constexpr	operator value_type () const noexcept
	Implicit conversion to Type.
constexpr auto	operator() () const noexcept -> value_type
	Nullary function call operator.

Static Public Attributes
static constexpr value_type	value {Value}
	The constant.

Detailed Description

template<typename Type, Type Value>
class std::integral_constant< Type, Value >

A helper class to represent a compile-time constant with the specified type and value. Instances of the type are implicitly convertible to the specified type and are nullary-invocable, yielding the specified type. The result of such a conversion or invocation is the specified value. The value member is a constant of the specified type, holding the specified value.

Template Parameters

Type	The type of the value
Value	The value of the constant

Member Typedef Documentation

type

template<typename Type, Type Value>

using std::integral_constant< Type, Value >::type = integral_constant

The type of this class.

value_type

template<typename Type, Type Value>

using std::integral_constant< Type, Value >::value_type = Type

The type of the value.

Member Function Documentation

operator value_type()

template<typename Type, Type Value>

std::integral_constant< Type, Value >::operator value_type ( ) const

inlineconstexprnoexcept

Implicit conversion to Type.

Returns

The specified Value

operator()()

template<typename Type, Type Value>

auto std::integral_constant< Type, Value >::operator() ( ) const -> value_type

inlineconstexprnoexcept

Nullary function call operator.

Returns

The specified Value

Member Data Documentation

value

template<typename Type, Type Value>

value_type std::integral_constant< Type, Value >::value {Value}

staticconstexpr

The constant.

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

• stdlib/include/stdlib_detail/integral_constant.hpp