std::negate< void > Class Reference

Function object that can be invoked for negate, specialized for type deduction. More...

Public Types
using	argument_type
	Type of the value to negate.
using	is_transparent = void
	Denotes that this is a transparent function object type.
using	result_type
	Result type of invoking this object.

Public Member Functions
template<class T>
constexpr auto	operator() (T &&value) const noexcept(noexcept(-std::forward< T >(std::declval< T >()))) ->
	Returns the negation of the value.
constexpr auto	operator() (void const &value) const noexcept(noexcept(-std::declval< void >())) -> void
	Returns the negation of the value.
constexpr auto	operator() (void const &value) const noexcept(noexcept(-std::declval< void >())) -> void
	Returns the negation of the value.

Detailed Description

Function object that can be invoked for negate, specialized for type deduction.

Member Typedef Documentation

argument_type

using std::negate< void >::argument_type

Type of the value to negate.

is_transparent

using std::negate< void >::is_transparent = void

Denotes that this is a transparent function object type.

result_type

using std::negate< void >::result_type

Result type of invoking this object.

Member Function Documentation

operator()() [1/3]

template<class T>

auto std::negate< void >::operator() ( T && value ) const ->

inlineconstexprnoexcept

Returns the negation of the value.

Template Parameters

T	The value type

Parameters

value

The value to negate

Returns

Returns the result of invoking operator- on value

operator()() [2/3]

auto std::negate< void >::operator() ( void const & value ) const-> void

inlineconstexprnoexcept

Returns the negation of the value.

Template Parameters

U	Template parameter to enable constraints.

Parameters

value

The value to negate

Returns

Returns the result of invoking operator- on value

operator()() [3/3]

auto std::negate< void >::operator() ( void const & value ) const-> void

inlineconstexprnoexcept

Returns the negation of the value.

Template Parameters

U	Template parameter to enable constraints.

Parameters

value

The value to negate

Returns

Returns the result of invoking operator- on value

Note

This overload explicitly casts the result of the computation to the type T. This avoids any warning for implicit conversion (present on gcc8).

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

• stdlib/include/stdlib_detail/negate.hpp