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improve hash value computation for tuples

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greg
2019-11-04 07:33:24 -05:00
parent 64f1b82a54
commit 52ccdcdb71
1 changed files with 2 additions and 1 deletions
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parallel_hashmap/phmap_utils.h
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+2 -1
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@@ -345,7 +345,8 @@ private:
_hash_helper(const std::tuple<P...> &t) const noexcept {
const auto &el = std::get<I>(t);
using el_type = typename std::remove_cv<typename std::remove_reference<decltype(el)>::type>::type;
return phmap::Hash<el_type>()(el) + _hash_helper<I + 1>(t);
return Combiner<size_t, sizeof(size_t)>()(
phmap::Hash<el_type>()(el), _hash_helper<I + 1>(t));
}
};