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Contents
// Copyright 2017 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#ifndef BOOST_HASH_IS_UNORDERED_RANGE_HPP_INCLUDED
#define BOOST_HASH_IS_UNORDERED_RANGE_HPP_INCLUDED
#include <boost/container_hash/is_range.hpp>
#include <boost/type_traits/integral_constant.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost
{
namespace hash_detail
{
template<class T, class E = true_type> struct has_hasher_: false_type
{
};
template<class T> struct has_hasher_< T, integral_constant< bool,
is_same<typename T::hasher, typename T::hasher>::value
> >: true_type
{
};
} // namespace hash_detail
namespace container_hash
{
template<class T> struct is_unordered_range: integral_constant< bool, is_range<T>::value && hash_detail::has_hasher_<T>::value >
{
};
} // namespace container_hash
} // namespace boost
#endif // #ifndef BOOST_HASH_IS_UNORDERED_RANGE_HPP_INCLUDED
Version data entries
4 entries across 4 versions & 1 rubygems