Sprout/sprout/functional/hash/to_hash.hpp
2016-04-08 12:51:11 +09:00

36 lines
1.2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2016 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_FUNCTIONAL_HASH_TO_HASH_HPP
#define SPROUT_FUNCTIONAL_HASH_TO_HASH_HPP
#include <sprout/config.hpp>
#include <sprout/workaround/std/cstddef.hpp>
#include <sprout/functional/hash/hash_fwd.hpp>
namespace sprout {
//
// to_hash
//
// effect:
// sprout::hash_value_traits<T>::hash_value(v)
// [default]
// ADL callable hash_value(v) -> hash_value(v)
// [default]
// T is Arithmetic || Enum || Pointer || Array -> implementation-defined
// otherwise -> std::hash<T>()(v)
//
template<typename T>
inline SPROUT_CONSTEXPR std::size_t
to_hash(T&& v) {
return sprout::hash_value_traits<T>::hash_value(v);
}
} // namespace sprout
#include <sprout/functional/hash/hash_value_traits.hpp>
#endif // #ifndef SPROUT_FUNCTIONAL_HASH_TO_HASH_HPP