[logical.operations.and] (original) (raw)

20 General utilities library [utilities]

20.14 Function objects [function.objects]

20.14.10 Logical operations [logical.operations]

20.14.10.2 Class template logical_­and [logical.operations.and]

template<class T = void> struct logical_and { constexpr bool operator()(const T& x, const T& y) const;};

constexpr bool operator()(const T& x, const T& y) const;

template<> struct logical_and<void> { template<class T, class U> constexpr auto operator()(T&& t, U&& u) const -> decltype(std::forward<T>(t) && std::forward<U>(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>(t) && std​::​forward<U>(u).