std::bit_or (3) - Linux Manuals

std::bit_or: std::bit_or


std::bit_or - std::bit_or


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

Function object for performing bitwise OR. Effectively calls operator| on type T.


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

             function object implementing x | y deducing argument and return types (since C++14)
bit_or<void> (class template specialization)

Member types

Type Definition (until C++20)
result_type(deprecated in C++17) T
first_argument_type(deprecated in C++17) T
second_argument_type(deprecated in C++17) T

Member functions

           returns the result of bitwise OR of two arguments
operator() (public member function)


T operator()( const T& lhs, const T& rhs ) const; (until C++14)
constexpr T operator()( const T& lhs, const T& rhs ) const; (since C++14)

Returns the result of bitwise OR of lhs and rhs.


lhs, rhs - values to compute bitwise OR of

Return value

The result of lhs | rhs.



Possible implementation

  constexpr T operator()(const T &lhs, const T &rhs) const
      return lhs | rhs;