jh::concepts::has_mbr_hash Concept Reference

Checks whether a type defines a hash() member function. More...

#include <jh/conceptual/hashable.h>

Concept definition

    template<typename T>
    concept has_mbr_hash = requires(const T& v) {
        { v.hash() } -> std::convertible_to<size_t>;
    }

Detailed Description

Checks whether a type defines a hash() member function.

Equivalent to:

{ v.hash() } -> std::convertible_to<size_t>;