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Hardcode q*q to avoid 'integral constant overflow' warnings

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This commit is contained in:
Peter Dimov
2023-02-02 06:15:01 +02:00
parent ee064dc7f8
commit ec1503bbc8
1 changed files with 2 additions and 2 deletions
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4
include/boost/container_hash/detail/hash_range.hpp
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@@ -257,7 +257,7 @@ std::size_t>::type
std::size_t n = static_cast<std::size_t>( last - first ); std::size_t n = static_cast<std::size_t>( last - first );
boost::uint64_t const q = 0x9e3779b97f4a7c15ULL; boost::uint64_t const q = 0x9e3779b97f4a7c15ULL;
boost::uint64_t const k = q * q; boost::uint64_t const k = 0xdf442d22ce4859b9ULL; // q * q
boost::uint64_t w = mulx( seed + q, k ); boost::uint64_t w = mulx( seed + q, k );
boost::uint64_t h = w ^ n; boost::uint64_t h = w ^ n;
@@ -309,7 +309,7 @@ std::size_t>::type
std::size_t n = 0; std::size_t n = 0;
boost::uint64_t const q = 0x9e3779b97f4a7c15ULL; boost::uint64_t const q = 0x9e3779b97f4a7c15ULL;
boost::uint64_t const k = q * q; boost::uint64_t const k = 0xdf442d22ce4859b9ULL; // q * q
boost::uint64_t w = mulx( seed + q, k ); boost::uint64_t w = mulx( seed + q, k );
boost::uint64_t h = w; boost::uint64_t h = w;