cpp/utility/functional/not equal to void

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

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

Returns the result of non-equality comparison between {{tt|lhs}} and {{tt|rhs}}.

Return value
The result of. }}