23 General utilities library [utilities]

23.14 Function objects [function.objects]

23.14.7 Comparisons [comparisons]

23.14.7.6 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;
Returns: x <= y.
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).