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| author | Remko Tronçon <git@el-tramo.be> | 2010-05-06 17:44:27 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2010-05-06 17:44:27 (GMT) |
| commit | d76ada0ab59634e3333f9eb5a92d0e850f60d7bf (patch) | |
| tree | 5eaae441173fad2ec19ba67d6589f28ecd740991 /3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp | |
| parent | 6f49e5abee37d37b351d68c01374232eccdac458 (diff) | |
| download | swift-d76ada0ab59634e3333f9eb5a92d0e850f60d7bf.zip swift-d76ada0ab59634e3333f9eb5a92d0e850f60d7bf.tar.bz2 | |
Updated Boost to 1.43.0.
Diffstat (limited to '3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp')
| -rw-r--r-- | 3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp b/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp index f9acee9..fdbf53f 100644 --- a/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp +++ b/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_generic.hpp @@ -51,17 +51,15 @@ namespace boost limits<T>::min_exponent; } - // The result of frexp is always between 0.5 and 1, so its - // top bit will always be 1. Subtract by 0.5 to remove that. - v -= T(0.5); - v = ldexp(v, limits<std::size_t>::digits + 1); + v = ldexp(v, limits<std::size_t>::digits); std::size_t seed = static_cast<std::size_t>(v); v -= seed; // ceiling(digits(T) * log2(radix(T))/ digits(size_t)) - 1; std::size_t const length = (limits<T>::digits * - boost::static_log2<limits<T>::radix>::value - 1) + boost::static_log2<limits<T>::radix>::value + + limits<std::size_t>::digits - 1) / limits<std::size_t>::digits; for(std::size_t i = 0; i != length; ++i) |