std::experimental::ranges:: greater

Defined in header <experimental/ranges/functional>
template < class T = void > requires StrictTotallyOrdered < T > || Same < T, void > || /* < on two const T lvalues invokes a built-in operator comparing pointers */ struct greater ;		(ranges TS)
template <> struct greater < void > ;		(ranges TS)

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)

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)