std::bit_not

C++

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Defined in header <functional>
template< class T = void > struct bit_not;		(since C++14)

Function object for performing bitwise NOT. Effectively calls operator~ on type T.

Specializations

The standard library provides a specialization of std::bit_not when T is not specified, which leaves the parameter types and return type to be deduced.

bit_not<void>

function object implementing ~x deducing argument and return types (class template specialization)

Member types Type Definition result_type(deprecated in C++17) T argument_type(deprecated in C++17) T

(until C++20)

Member functions

operator()

returns the result of bitwise NOT of its argument (public member function)

std::bit_not::operator()

constexpr T operator()( const T& arg ) const;

Returns the result of bitwise NOT of arg.

Parameters

arg

-

value to compute bitwise NOT of

Return value

The result of ~arg.

Exceptions

(none)

Possible implementation

constexpr T operator()(const T& arg) const { return ~arg; }