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author | Remko Tronçon <git@el-tramo.be> | 2012-12-23 13:16:26 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2012-12-23 14:43:26 (GMT) |
commit | 491ddd570a752cf9bda85933bed0c6942e39b1f9 (patch) | |
tree | 10c25c1be8cc08d0497df1dccd56a10fbb30beee /3rdParty/Boost/src/boost/functional/hash/detail/hash_float_x86.hpp | |
parent | da7d7a0ca71b80281aa9ff2526290b61ccb0cc60 (diff) | |
download | swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.zip swift-491ddd570a752cf9bda85933bed0c6942e39b1f9.tar.bz2 |
Update Boost to 1.52.0.
Change-Id: I1e56bea2600bf2ed9c5b3aba8c4f9d2a0f350e77
Diffstat (limited to '3rdParty/Boost/src/boost/functional/hash/detail/hash_float_x86.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/functional/hash/detail/hash_float_x86.hpp | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_x86.hpp b/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_x86.hpp deleted file mode 100644 index b39bb0d..0000000 --- a/3rdParty/Boost/src/boost/functional/hash/detail/hash_float_x86.hpp +++ /dev/null @@ -1,56 +0,0 @@ - -// Copyright 2005-2009 Daniel James. -// Distributed under the Boost Software License, Version 1.0. (See accompanying -// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) - -// A non-portable hash function form non-zero floats on x86. -// -// Even if you're on an x86 platform, this might not work if their floating -// point isn't set up as this expects. So this should only be used if it's -// absolutely certain that it will work. - -#if !defined(BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_X86_HEADER) -#define BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_X86_HEADER - -#include <boost/cstdint.hpp> - -#if defined(_MSC_VER) && (_MSC_VER >= 1020) -# pragma once -#endif - -namespace boost -{ - namespace hash_detail - { - inline void hash_float_combine(std::size_t& seed, std::size_t value) - { - seed ^= value + (seed<<6) + (seed>>2); - } - - inline std::size_t float_hash_impl(float v) - { - boost::uint32_t* ptr = (boost::uint32_t*)&v; - std::size_t seed = *ptr; - return seed; - } - - inline std::size_t float_hash_impl(double v) - { - boost::uint32_t* ptr = (boost::uint32_t*)&v; - std::size_t seed = *ptr++; - hash_float_combine(seed, *ptr); - return seed; - } - - inline std::size_t float_hash_impl(long double v) - { - boost::uint32_t* ptr = (boost::uint32_t*)&v; - std::size_t seed = *ptr++; - hash_float_combine(seed, *ptr++); - hash_float_combine(seed, *(boost::uint16_t*)ptr); - return seed; - } - } -} - -#endif |