forked from boostorg/container_hash
95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
// (C) Copyright Daniel James 2005.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include "./config.hpp"
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#if defined(TEST_EXTENSIONS) && !defined(TEST_STD_INCLUDES)
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#include <boost/functional/hash_fwd.hpp>
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#include <vector>
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template <class T>
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struct test_type1
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{
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T value;
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test_type1(T const& x) : value(x) {}
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#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
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friend std::size_t hash_value(test_type1<T> const& x)
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{
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HASH_NAMESPACE::hash<T> hasher;
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return hasher(x.value);
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}
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#endif
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};
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template <class T>
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struct test_type2
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{
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T value1, value2;
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test_type2(T const& x, T const& y) : value1(x), value2(y) {}
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#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
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friend std::size_t hash_value(test_type2<T> const& x)
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{
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std::size_t seed = 0;
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boost::hash_combine(seed, x.value1);
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boost::hash_combine(seed, x.value2);
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return seed;
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}
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#endif
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};
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template <class T>
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struct test_type3
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{
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std::vector<T> values;
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test_type3(typename std::vector<T>::iterator x,
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typename std::vector<T>::iterator y) : values(x, y) {}
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#if !defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP)
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friend std::size_t hash_value(test_type3<T> const& x)
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{
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std::size_t seed = boost::hash_range(x.values.begin(), x.values.end());
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boost::hash_range(seed, x.values.begin(), x.values.end());
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return seed;
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}
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#endif
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};
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#if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOPUP)
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namespace boost
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{
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template <class T>
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std::size_t hash_value(test_type1<T> const& x)
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{
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HASH_NAMESPACE::hash<T> hasher;
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return hasher(x.value);
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}
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template <class T>
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std::size_t hash_value(test_type2<T> const& x)
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{
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std::size_t seed = 0;
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boost::hash_combine(seed, x.value1);
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boost::hash_combine(seed, x.value2);
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return seed;
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}
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template <class T>
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std::size_t hash_value(test_type3<T> const& x)
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{
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std::size_t seed = boost::hash_range(x.values.begin(), x.values.end());
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boost::hash_range(seed, x.values.begin(), x.values.end());
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return seed;
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}
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}
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#endif
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#endif
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