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31 lines
714 B
C++
31 lines
714 B
C++
#ifndef SPROUT_UTILITY_PAIR_HASH_HPP
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#define SPROUT_UTILITY_PAIR_HASH_HPP
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#include <cstddef>
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#include <functional>
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#include <sprout/config.hpp>
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#include <sprout/utility/pair/pair.hpp>
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#include <sprout/functional/hash.hpp>
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namespace sprout {
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//
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// hash_value
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//
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template<typename T1, typename T2>
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inline SPROUT_CONSTEXPR std::size_t
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hash_value(sprout::pair<T1, T2> const& v) {
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return sprout::hash_values(v.first, v.second);
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}
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} // namespace sprout
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namespace std {
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//
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// hash
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//
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template<typename T1, typename T2>
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struct hash<sprout::pair<T1, T2> >
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: public sprout::hash<sprout::pair<T1, T2> >
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{};
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} // namespace std
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#endif // #ifndef SPROUT_UTILITY_PAIR_HASH_HPP
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