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]).
template <class T = void> struct bit_and {
constexpr T operator()(const T& x, const T& y) const;
typedef T first_argument_type;
typedef T second_argument_type;
typedef T result_type;
};
operator() returns x & y.
template <class T = void> struct bit_or {
constexpr T operator()(const T& x, const T& y) const;
typedef T first_argument_type;
typedef T second_argument_type;
typedef T result_type;
};
operator() returns x | y.
template <class T = void> struct bit_xor {
constexpr T operator()(const T& x, const T& y) const;
typedef T first_argument_type;
typedef T second_argument_type;
typedef T result_type;
};
operator() returns x ^ y.
template <class T = void> struct bit_not {
constexpr T operator()(const T& x) const;
typedef T argument_type;
typedef T result_type;
};
operator() returns ~x.
template <> struct bit_and<void> {
template <class T, class U> constexpr auto operator()(T&& t, U&& u) const
-> decltype(std::forward<T>(t) & std::forward<U>(u));
typedef unspecified is_transparent;
};
operator() returns std::forward<T>(t) & std::forward<U>(u).
template <> struct bit_or<void> {
template <class T, class U> constexpr auto operator()(T&& t, U&& u) const
-> decltype(std::forward<T>(t) | std::forward<U>(u));
typedef unspecified is_transparent;
};
operator() returns std::forward<T>(t) | std::forward<U>(u).
template <> struct bit_xor<void> {
template <class T, class U> constexpr auto operator()(T&& t, U&& u) const
-> decltype(std::forward<T>(t) ^ std::forward<U>(u));
typedef unspecified is_transparent;
};
operator() returns std::forward<T>(t) ^ std::forward<U>(u).
template <> struct bit_not<void> {
template <class T> constexpr auto operator()(T&& t) const
-> decltype(~std::forward<T>(t));
typedef unspecified is_transparent;
};
operator() returns ~std::forward<T>(t).