37 lines
835 B
C++
37 lines
835 B
C++
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#ifndef BOOST_HASH_IS_TUPLE_LIKE_HPP_INCLUDED
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#define BOOST_HASH_IS_TUPLE_LIKE_HPP_INCLUDED
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// Copyright 2017, 2022 Peter Dimov.
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <type_traits>
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#include <utility>
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namespace boost
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{
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namespace hash_detail
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{
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template<class T, class E = std::true_type> struct is_tuple_like_: std::false_type
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{
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};
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template<class T> struct is_tuple_like_<T, std::integral_constant<bool, std::tuple_size<T>::value == std::tuple_size<T>::value> >: std::true_type
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{
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};
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} // namespace hash_detail
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namespace container_hash
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{
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template<class T> struct is_tuple_like: hash_detail::is_tuple_like_< typename std::remove_cv<T>::type >
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{
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};
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} // namespace container_hash
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} // namespace boost
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#endif // #ifndef BOOST_HASH_IS_TUPLE_LIKE_HPP_INCLUDED
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