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author | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2010-02-11 12:14:00 (GMT) |
commit | 0efa7c32aaf21a29b42b5926cc116007056843be (patch) | |
tree | 882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/functional/hash/detail | |
parent | 1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff) | |
download | swift-0efa7c32aaf21a29b42b5926cc116007056843be.zip swift-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2 |
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/boost/functional/hash/detail')
m--------- | 3rdParty/Boost | 0 | ||||
-rw-r--r-- | 3rdParty/Boost/boost/functional/hash/detail/float_functions.hpp | 162 | ||||
-rw-r--r-- | 3rdParty/Boost/boost/functional/hash/detail/hash_float.hpp | 197 |
3 files changed, 0 insertions, 359 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost new file mode 160000 +Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79 diff --git a/3rdParty/Boost/boost/functional/hash/detail/float_functions.hpp b/3rdParty/Boost/boost/functional/hash/detail/float_functions.hpp deleted file mode 100644 index 69cf91a..0000000 --- a/3rdParty/Boost/boost/functional/hash/detail/float_functions.hpp +++ /dev/null @@ -1,162 +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) - -#if !defined(BOOST_FUNCTIONAL_HASH_DETAIL_FLOAT_FUNCTIONS_HPP) -#define BOOST_FUNCTIONAL_HASH_DETAIL_FLOAT_FUNCTIONS_HPP - -#include <boost/config/no_tr1/cmath.hpp> - -#if defined(_MSC_VER) && (_MSC_VER >= 1020) -# pragma once -#endif - -// The C++ standard requires that the C float functions are overloarded -// for float, double and long double in the std namespace, but some of the older -// library implementations don't support this. On some that don't, the C99 -// float functions (frexpf, frexpl, etc.) are available. -// -// Some of this is based on guess work. If I don't know any better I assume that -// the standard C++ overloaded functions are available. If they're not then this -// means that the argument is cast to a double and back, which is inefficient -// and will give pretty bad results for long doubles - so if you know better -// let me know. - -// STLport: -#if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) -# if (defined(__GNUC__) && __GNUC__ < 3 && (defined(linux) || defined(__linux) || defined(__linux__))) || defined(__DMC__) -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -# elif defined(BOOST_MSVC) && BOOST_MSVC < 1300 -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -# else -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS -# endif - -// Roguewave: -// -// On borland 5.51, with roguewave 2.1.1 the standard C++ overloads aren't -// defined, but for the same version of roguewave on sunpro they are. -#elif defined(_RWSTD_VER) -# if defined(__BORLANDC__) -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -# define BOOST_HASH_C99_NO_FLOAT_FUNCS -# elif defined(__DECCXX) -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -# else -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS -# endif - -// libstdc++ (gcc 3.0 onwards, I think) -#elif defined(__GLIBCPP__) || defined(__GLIBCXX__) -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS - -// SGI: -#elif defined(__STL_CONFIG_H) -# if defined(linux) || defined(__linux) || defined(__linux__) -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -# else -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS -# endif - -// vxWorks. It has its own math library, but uses Dinkumware STL -#elif defined(__VXWORKS__) -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS - -// Dinkumware. -#elif (defined(_YVALS) && !defined(__IBMCPP__)) || defined(_CPPLIB_VER) -// Some versions of Visual C++ don't seem to have the C++ overloads but they -// all seem to have the c99 float overloads -# if defined(BOOST_MSVC) -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -// On other platforms the C++ overloads seem to have been introduced sometime -// before 402. -# elif defined(_CPPLIB_VER) && (_CPPLIB_VER >= 402) -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS -# else -# define BOOST_HASH_USE_C99_FLOAT_FUNCS -# endif - -// Digital Mars -#elif defined(__DMC__) -# define BOOST_HASH_USE_C99_FLOAT_FUNCS - -// Use overloaded float functions by default. -#else -# define BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS -#endif - -namespace boost -{ - namespace hash_detail - { - - inline float call_ldexp(float v, int exp) - { - using namespace std; -#if defined(BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS) || \ - defined(BOOST_HASH_C99_NO_FLOAT_FUNCS) - return ldexp(v, exp); -#else - return ldexpf(v, exp); -#endif - } - - inline double call_ldexp(double v, int exp) - { - using namespace std; - return ldexp(v, exp); - } - - inline long double call_ldexp(long double v, int exp) - { - using namespace std; -#if defined(BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS) - return ldexp(v, exp); -#else - return ldexpl(v, exp); -#endif - } - - inline float call_frexp(float v, int* exp) - { - using namespace std; -#if defined(BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS) || \ - defined(BOOST_HASH_C99_NO_FLOAT_FUNCS) - return frexp(v, exp); -#else - return frexpf(v, exp); -#endif - } - - inline double call_frexp(double v, int* exp) - { - using namespace std; - return frexp(v, exp); - } - - inline long double call_frexp(long double v, int* exp) - { - using namespace std; -#if defined(BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS) - return frexp(v, exp); -#else - return frexpl(v, exp); -#endif - } - } -} - -#if defined(BOOST_HASH_USE_C99_FLOAT_FUNCS) -#undef BOOST_HASH_USE_C99_FLOAT_FUNCS -#endif - -#if defined(BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS) -#undef BOOST_HASH_USE_OVERLOAD_FLOAT_FUNCS -#endif - -#if defined(BOOST_HASH_C99_NO_FLOAT_FUNCS) -#undef BOOST_HASH_C99_NO_FLOAT_FUNCS -#endif - -#endif diff --git a/3rdParty/Boost/boost/functional/hash/detail/hash_float.hpp b/3rdParty/Boost/boost/functional/hash/detail/hash_float.hpp deleted file mode 100644 index 5d5ac34..0000000 --- a/3rdParty/Boost/boost/functional/hash/detail/hash_float.hpp +++ /dev/null @@ -1,197 +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) - -#if !defined(BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_HEADER) -#define BOOST_FUNCTIONAL_HASH_DETAIL_HASH_FLOAT_HEADER - -#if defined(_MSC_VER) && (_MSC_VER >= 1020) -# pragma once -#endif - -#if defined(BOOST_MSVC) -#pragma warning(push) -#if BOOST_MSVC >= 1400 -#pragma warning(disable:6294) // Ill-defined for-loop: initial condition does - // not satisfy test. Loop body not executed -#endif -#endif - -#include <boost/functional/hash/detail/float_functions.hpp> -#include <boost/integer/static_log2.hpp> -#include <boost/cstdint.hpp> -#include <boost/limits.hpp> -#include <boost/assert.hpp> - -// Select implementation for the current platform. - -// Cygwn -#if defined(__CYGWIN__) -# if defined(__i386__) || defined(_M_IX86) -# define BOOST_HASH_USE_x86_BINARY_HASH -# endif - -// STLport -#elif defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) -// fpclassify aren't good enough on STLport. - -// GNU libstdc++ 3 -#elif defined(__GLIBCPP__) || defined(__GLIBCXX__) -# if (defined(__USE_ISOC99) || defined(_GLIBCXX_USE_C99_MATH)) && \ - !(defined(macintosh) || defined(__APPLE__) || defined(__APPLE_CC__)) -# define BOOST_HASH_USE_FPCLASSIFY -# endif - -// Dinkumware Library, on Visual C++ -#elif (defined(_YVALS) && !defined(__IBMCPP__)) || defined(_CPPLIB_VER) - -// Not using _fpclass because it is only available for double. - -#endif - -// On OpenBSD, numeric_limits is not reliable for long doubles, but -// the macros defined in <float.h> are. - -#if defined(__OpenBSD__) -#include <float.h> -#endif - -namespace boost -{ - namespace hash_detail - { - template <class T> - struct limits : std::numeric_limits<T> {}; - -#if defined(__OpenBSD__) - template <> - struct limits<long double> - : std::numeric_limits<long double> - { - static long double epsilon() { - return LDBL_EPSILON; - } - - static long double (max)() { - return LDBL_MAX; - } - - static long double (min)() { - return LDBL_MIN; - } - - BOOST_STATIC_CONSTANT(int, digits = LDBL_MANT_DIG); - BOOST_STATIC_CONSTANT(int, max_exponent = LDBL_MAX_EXP); - BOOST_STATIC_CONSTANT(int, min_exponent = LDBL_MIN_EXP); - }; -#endif // __OpenBSD__ - - inline void hash_float_combine(std::size_t& seed, std::size_t value) - { - seed ^= value + (seed<<6) + (seed>>2); - } - -// A simple, non-portable hash algorithm for x86. -#if defined(BOOST_HASH_USE_x86_BINARY_HASH) - 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; - } - -#else - - template <class T> - inline std::size_t float_hash_impl(T v) - { - int exp = 0; - - v = boost::hash_detail::call_frexp(v, &exp); - - // A postive value is easier to hash, so combine the - // sign with the exponent. - if(v < 0) { - v = -v; - exp += limits<T>::max_exponent - - 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 = boost::hash_detail::call_ldexp(v, - limits<std::size_t>::digits + 1); - 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) - / limits<std::size_t>::digits; - - for(std::size_t i = 0; i != length; ++i) - { - v = boost::hash_detail::call_ldexp(v, - limits<std::size_t>::digits); - std::size_t part = static_cast<std::size_t>(v); - v -= part; - hash_float_combine(seed, part); - } - - hash_float_combine(seed, exp); - - return seed; - } -#endif - - template <class T> - inline std::size_t float_hash_value(T v) - { -#if defined(BOOST_HASH_USE_FPCLASSIFY) - using namespace std; - switch (fpclassify(v)) { - case FP_ZERO: - return 0; - case FP_INFINITE: - return (std::size_t)(v > 0 ? -1 : -2); - case FP_NAN: - return (std::size_t)(-3); - case FP_NORMAL: - case FP_SUBNORMAL: - return float_hash_impl(v); - default: - BOOST_ASSERT(0); - return 0; - } -#else - return v == 0 ? 0 : float_hash_impl(v); -#endif - } - } -} - -#if defined(BOOST_MSVC) -#pragma warning(pop) -#endif - -#endif |