mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
21 lines
571 B
C++
21 lines
571 B
C++
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#ifndef SPROUT_FUNCTIONAL_HASH_HASH_COMBINE_HPP
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#define SPROUT_FUNCTIONAL_HASH_HASH_COMBINE_HPP
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#include <cstddef>
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#include <sprout/config.hpp>
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#include <sprout/functional/hash/hash_fwd.hpp>
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#include <sprout/functional/hash/to_hash.hpp>
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namespace sprout {
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//
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// hash_combine
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//
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template<typename T>
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inline SPROUT_CONSTEXPR std::size_t
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hash_combine(std::size_t seed, T const& v) {
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return seed ^ (sprout::to_hash(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2));
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_FUNCTIONAL_HASH_HASH_COMBINE_HPP
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