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Diffstat (limited to '3rdParty/Boost/src/boost/multi_index/detail/uintptr_type.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/multi_index/detail/uintptr_type.hpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/multi_index/detail/uintptr_type.hpp b/3rdParty/Boost/src/boost/multi_index/detail/uintptr_type.hpp new file mode 100644 index 0000000..529c623 --- /dev/null +++ b/3rdParty/Boost/src/boost/multi_index/detail/uintptr_type.hpp @@ -0,0 +1,76 @@ +/* Copyright 2003-2008 Joaquin M Lopez Munoz. + * 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) + * + * See http://www.boost.org/libs/multi_index for library home page. + */ + +#ifndef BOOST_MULTI_INDEX_DETAIL_UINTPTR_TYPE_HPP +#define BOOST_MULTI_INDEX_DETAIL_UINTPTR_TYPE_HPP + +#if defined(_MSC_VER)&&(_MSC_VER>=1200) +#pragma once +#endif + +#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ +#include <boost/mpl/bool.hpp> + +namespace boost{ + +namespace multi_index{ + +namespace detail{ + +/* has_uintptr_type is an MPL integral constant determining whether + * there exists an unsigned integral type with the same size as + * void *. + * uintptr_type is such a type if has_uintptr is true, or unsigned int + * otherwise. + * Note that uintptr_type is more restrictive than C99 uintptr_t, + * where an integral type with size greater than that of void * + * would be conformant. + */ + +template<int N>struct uintptr_candidates; +template<>struct uintptr_candidates<-1>{typedef unsigned int type;}; +template<>struct uintptr_candidates<0> {typedef unsigned int type;}; +template<>struct uintptr_candidates<1> {typedef unsigned short type;}; +template<>struct uintptr_candidates<2> {typedef unsigned long type;}; + +#if defined(BOOST_HAS_LONG_LONG) +template<>struct uintptr_candidates<3> {typedef boost::ulong_long_type type;}; +#else +template<>struct uintptr_candidates<3> {typedef unsigned int type;}; +#endif + +#if defined(BOOST_HAS_MS_INT64) +template<>struct uintptr_candidates<4> {typedef unsigned __int64 type;}; +#else +template<>struct uintptr_candidates<4> {typedef unsigned int type;}; +#endif + +struct uintptr_aux +{ + BOOST_STATIC_CONSTANT(int,index= + sizeof(void*)==sizeof(uintptr_candidates<0>::type)?0: + sizeof(void*)==sizeof(uintptr_candidates<1>::type)?1: + sizeof(void*)==sizeof(uintptr_candidates<2>::type)?2: + sizeof(void*)==sizeof(uintptr_candidates<3>::type)?3: + sizeof(void*)==sizeof(uintptr_candidates<4>::type)?4:-1); + + BOOST_STATIC_CONSTANT(bool,has_uintptr_type=(index>=0)); + + typedef uintptr_candidates<index>::type type; +}; + +typedef mpl::bool_<uintptr_aux::has_uintptr_type> has_uintptr_type; +typedef uintptr_aux::type uintptr_type; + +} /* namespace multi_index::detail */ + +} /* namespace multi_index */ + +} /* namespace boost */ + +#endif |