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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 05:20:06 +02:00
parent 758596533d
commit 0bfeabfd63
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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@@ -98,7 +98,7 @@ 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::uint32_t const q = 0x9e3779b9U; boost::uint32_t const q = 0x9e3779b9U;
boost::uint32_t const k = q * q; boost::uint32_t const k = 0xe35e67b1U; // q * q
boost::uint64_t h = mul32( static_cast<boost::uint32_t>( seed ) + q, k ); boost::uint64_t h = mul32( static_cast<boost::uint32_t>( seed ) + q, k );
boost::uint32_t w = static_cast<boost::uint32_t>( h ); boost::uint32_t w = static_cast<boost::uint32_t>( h );
@@ -150,7 +150,7 @@ std::size_t>::type
std::size_t n = 0; std::size_t n = 0;
boost::uint32_t const q = 0x9e3779b9U; boost::uint32_t const q = 0x9e3779b9U;
boost::uint32_t const k = q * q; boost::uint32_t const k = 0xe35e67b1U; // q * q
boost::uint64_t h = mul32( static_cast<boost::uint32_t>( seed ) + q, k ); boost::uint64_t h = mul32( static_cast<boost::uint32_t>( seed ) + q, k );
boost::uint32_t w = static_cast<boost::uint32_t>( h ); boost::uint32_t w = static_cast<boost::uint32_t>( h );