std::experimental::ranges::greater(3)

NAME
std::experimental::ranges::greater - std::experimental::ranges::greater

Synopsis
   Defined in header <experimental/ranges/functional>
   template< class T = void >
       requires StrictTotallyOrdered<T> ||
                Same<T, void> || (ranges TS)
                /* < on two const T lvalues invokes a built-in operator
   comparing pointers */
   struct greater;
   template<> (ranges TS)
   struct greater<void>;
   Function object for performing comparisons. The primary template invokes operator<
   on const lvalues of type T with the argument order inverted. The specialization
   greater<void> deduces the parameter types of the function call operator from the
   arguments (but not the return type).
   All specializations of greater are Semiregular.

Member types
   Member type Definition
   is_transparent (member only of greater<void> specialization) /* unspecified */

Member functions
   operator() checks if the first argument is greater than the second
              (public member function) std::experimental::ranges::greater::operator()
   constexpr bool operator()(const T& x, const T& y) (1) (member only of primary
   const; greater<T> template)
   template< class T, class U >
       requires StrictTotallyOrderedWith<T, U> ||
                /* std::declval<T>() < (member only of greater<void>
   std::declval<U>() resolves to (2) specialization)
                   a built-in operator comparing
   pointers */
   constexpr bool operator()(T&& t, U&& u) const;
   1) Compares x and y. Equivalent to return ranges::less<>{}(y, x);.
   2) Compares t and u. Equivalent to return ranges::less<>{}(std::forward<U>(u),
   std::forward<T>(t));.

Notes
   Unlike std::greater, ranges::greater requires all six comparison operators <, <=, >,
   >=, == and != to be valid (via the StrictTotallyOrdered and StrictTotallyOrderedWith
   constraints) and is entirely defined in terms of ranges::less. However, the
   implementation is free to use operator> directly, because those concepts require the
   results of the comparison operators to be consistent.

Example
    This section is incomplete
    Reason: no example

See also
   greater function object implementing x > y
           (class template)

Category:
     * Todo no example