/* Hash function characterization. * * Copyright 2022 Joaquin M Lopez Munoz. * 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) * * See https://www.boost.org/libs/unordered for library home page. */ #ifndef BOOST_UNORDERED_HASH_TRAITS_HPP #define BOOST_UNORDERED_HASH_TRAITS_HPP #include <boost/unordered/detail/type_traits.hpp> namespace boost{ namespace unordered{ namespace detail{ template<typename Hash,typename=void> struct hash_is_avalanching_impl: std::false_type{}; template<typename Hash> struct hash_is_avalanching_impl<Hash, boost::unordered::detail::void_t<typename Hash::is_avalanching> >: std::true_type{}; } /* namespace detail */ /* Each trait can be partially specialized by users for concrete hash functions * when actual characterization differs from default. */ /* hash_is_avalanching<Hash>::value is true when the type Hash::is_avalanching * is present, false otherwise. */ template<typename Hash> struct hash_is_avalanching: detail::hash_is_avalanching_impl<Hash>::type{}; } /* namespace unordered */ } /* namespace boost */ #endif