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Showing content from http://en.cppreference.com/w/cpp/../cpp/symbol_index/../utility/functional/ranges/greater.html below:

std::ranges::greater - cppreference.com

struct greater;

(since C++20)

Function object for performing comparisons. Deduces the parameter types of the function call operator from the arguments (but not the return type).

[edit] Nested types [edit] Member functions checks if the first argument is greater than the second
(public member function) [edit] Notes

Unlike std::greater, std::ranges::greater requires all six comparison operators <, <=, >, >=, == and != to be valid (via the totally_ordered_with constraint) and is entirely defined in terms of std::ranges::less.

[edit] Example [edit] Defect reports

The following behavior-changing defect reports were applied retroactively to previously published C++ standards.

DR Applied to Behavior as published Correct behavior LWG 3530 C++20 syntactic checks were relaxed while comparing pointers only semantic requirements are relaxed [edit] See also function object implementing x > y
(class template) [edit]

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