hashable

namespace opentl {
    template <typename T>
    concept hashable = requires(const T& value) {
        { opentl::hash<T>{}(value) } -> opentl::convertible_to<opentl::size_t>;
    };
}

Checks if a type is hashable.

Template Parameters

Name	Description
`T`	The type to hash.

Example

#include <hash.hpp>

struct foo {};

static_assert(opentl::hashable<int>);
static_assert(opentl::hashable<int*>);
static_assert(!opentl::hashable<foo>);