cpp/utility/functional/negate void

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

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

Returns the result of negating {{tt|arg}} (or whatever the unary {{tt|operator-}} is overloaded to do)

Return value
The result of. }}