cpp/utility/functional/logical not void

is a specialization of std with parameter and return type deduced.

Member functions
{{member | {{small|std::logical_not<>::}}operator | 2= {{ddcl | 1= template< class T > constexpr auto operator( T&& arg ) const -> decltype(!std::forward(arg)); }}

Returns the result of {{tt|!arg}}.

Return value
The result of. }}