5.0 KiB
[bitwise.operations]
22 General utilities library [utilities]
22.10 Function objects [function.objects]
22.10.11 Bitwise operations [bitwise.operations]
22.10.11.1 General [bitwise.operations.general]
The library provides basic function object classes for all of the bitwise operators in the language ([expr.bit.and], [expr.or], [expr.xor], [expr.unary.op]).
22.10.11.2 Class template bit_and [bitwise.operations.and]
template<class T = void> struct bit_and { constexpr T operator()(const T& x, const T& y) const; };
constexpr T operator()(const T& x, const T& y) const;
Returns: x & y.
`template<> struct bit_and { template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward(t) & std::forward(u));
using is_transparent = unspecified; }; `
template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward<T>(t) & std::forward<U>(u));
Returns: std::forward(t) & std::forward(u).
22.10.11.3 Class template bit_or [bitwise.operations.or]
template<class T = void> struct bit_or { constexpr T operator()(const T& x, const T& y) const; };
constexpr T operator()(const T& x, const T& y) const;
Returns: x | y.
`template<> struct bit_or { template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward(t) | std::forward(u));
using is_transparent = unspecified; }; `
template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward<T>(t) | std::forward<U>(u));
Returns: std::forward(t) | std::forward(u).
22.10.11.4 Class template bit_xor [bitwise.operations.xor]
template<class T = void> struct bit_xor { constexpr T operator()(const T& x, const T& y) const; };
constexpr T operator()(const T& x, const T& y) const;
Returns: x ^ y.
`template<> struct bit_xor { template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward(t) ^ std::forward(u));
using is_transparent = unspecified; }; `
template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward<T>(t) ^ std::forward<U>(u));
Returns: std::forward(t) ^ std::forward(u).
22.10.11.5 Class template bit_not [bitwise.operations.not]
template<class T = void> struct bit_not { constexpr T operator()(const T& x) const; };
constexpr T operator()(const T& x) const;
Returns: ~x.
`template<> struct bit_not { template constexpr auto operator()(T&& t) const -> decltype(~std::forward(t));
using is_transparent = unspecified; }; `
template<class T> constexpr auto operator()(T&& t) const -> decltype(~std::forward<T>(t));
Returns: ~std::forward(t).