std::logical_not

Header: <functional>

Function object for performing logical NOT (logical negation). Effectively calls operator! for type T.

# Declarations

template< class T >
struct logical_not;

(until C++14)

template< class T = void >
struct logical_not;

(since C++14)

# Parameters

• arg: value to compute logical NOT of

# Return value

The result of !arg.