[comparisons.less.equal] (original) (raw)

20 General utilities library [utilities]

20.14 Function objects [function.objects]

20.14.7 Comparisons [comparisons]

20.14.7.6 Class template less_­equal [comparisons.less.equal]

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

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

template<> struct less_equal<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).