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rename hash_values_combine -> hash_combine

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fix hash_range
This commit is contained in:
bolero-MURAKAMI 2013-02-04 22:13:27 +09:00
parent 4332b26a0e
commit 6e5f4c5606
6 changed files with 65 additions and 60 deletions
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23
sprout/functional/hash/hash_combine.hpp
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@ -7,13 +7,30 @@
#include <sprout/functional/hash/to_hash.hpp>
namespace sprout {
namespace detail {
template<typename T>
inline SPROUT_CONSTEXPR std::size_t
hash_combine_impl(std::size_t seed) {
return seed;
}
template<typename T>
inline SPROUT_CONSTEXPR std::size_t
hash_combine_impl(std::size_t seed, T const& v) {
return seed ^ (sprout::to_hash(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2));
}
template<typename Head, typename... Tail>
inline SPROUT_CONSTEXPR std::size_t
hash_combine_impl(std::size_t seed, Head const& head, Tail const&... tail) {
return sprout::detail::hash_combine_impl(sprout::detail::hash_combine_impl(seed, head), tail...);
}
} // namespace detail
//
// hash_combine
//
template<typename T>
template<typename... Args>
inline SPROUT_CONSTEXPR std::size_t
hash_combine(std::size_t seed, T const& v) {
return seed ^ (sprout::to_hash(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2));
hash_combine(std::size_t seed, Args const&... args) {
return sprout::detail::hash_combine_impl(seed, args...);
}
} // namespace sprout