std::logical_not<void>

 

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Operator wrappers plus minus negate multiplies divides modulus bit_and bit_or bit_not (C++14)   bit_xor equal_to not_equal_to greater less greater_equal less_equal logical_and logical_or logical_not	Transparent operator wrappers plus<> (C++14) minus<> (C++14) negate<> (C++14) multiplies<> (C++14)   divides<> (C++14) modulus<> (C++14) bit_and<> (C++14) bit_or<> (C++14) bit_not<> (C++14) bit_xor<> (C++14) equal_to<> (C++14) not_equal_to<> (C++14) greater<> (C++14) less<> (C++14) greater_equal<> (C++14) less_equal<> (C++14) logical_and<> (C++14) logical_or<> (C++14) logical_not<> (C++14)
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Defined in header <functional>
template<> class logical_not<void>;		(since C++14)

std::logical_not<void> is a specialization of std::logical_not with parameter and return type deduced.

Nested types

Nested type	Definition
is_transparent	unspecified

Member functions

operator()

applies operator! to its argument (public member function)

std::logical_not<void>::operator()

template< class T > constexpr auto operator()( T&& arg ) const     -> decltype(!std::forward<T>(arg));

Returns the result of !std::forward<T>(arg).

Parameters

arg

-

value to apply logical NOT to

Return value

!std::forward<T>(arg).