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| author | Remko Tronçon <git@el-tramo.be> | 2010-05-06 17:44:27 (GMT) |
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| committer | Remko Tronçon <git@el-tramo.be> | 2010-05-06 17:44:27 (GMT) |
| commit | d76ada0ab59634e3333f9eb5a92d0e850f60d7bf (patch) | |
| tree | 5eaae441173fad2ec19ba67d6589f28ecd740991 /3rdParty/Boost/src/boost/utility | |
| parent | 6f49e5abee37d37b351d68c01374232eccdac458 (diff) | |
| download | swift-d76ada0ab59634e3333f9eb5a92d0e850f60d7bf.zip swift-d76ada0ab59634e3333f9eb5a92d0e850f60d7bf.tar.bz2 | |
Updated Boost to 1.43.0.
Diffstat (limited to '3rdParty/Boost/src/boost/utility')
| -rw-r--r-- | 3rdParty/Boost/src/boost/utility/value_init.hpp | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/3rdParty/Boost/src/boost/utility/value_init.hpp b/3rdParty/Boost/src/boost/utility/value_init.hpp deleted file mode 100644 index 5aefac9..0000000 --- a/3rdParty/Boost/src/boost/utility/value_init.hpp +++ /dev/null @@ -1,151 +0,0 @@ -// (C) Copyright 2002-2008, Fernando Luis Cacciola Carballal. -// -// 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) -// -// 21 Ago 2002 (Created) Fernando Cacciola -// 24 Dec 2007 (Refactored and worked around various compiler bugs) Fernando Cacciola, Niels Dekker -// 23 May 2008 (Fixed operator= const issue, added initialized_value) Niels Dekker, Fernando Cacciola -// 21 Ago 2008 (Added swap) Niels Dekker, Fernando Cacciola -// 20 Feb 2009 (Fixed logical const-ness issues) Niels Dekker, Fernando Cacciola -// -#ifndef BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP -#define BOOST_UTILITY_VALUE_INIT_21AGO2002_HPP - -// Note: The implementation of boost::value_initialized had to deal with the -// fact that various compilers haven't fully implemented value-initialization. -// The constructor of boost::value_initialized<T> works around these compiler -// issues, by clearing the bytes of T, before constructing the T object it -// contains. More details on these issues are at libs/utility/value_init.htm - -#include <boost/aligned_storage.hpp> -#include <boost/detail/workaround.hpp> -#include <boost/static_assert.hpp> -#include <boost/type_traits/cv_traits.hpp> -#include <boost/type_traits/alignment_of.hpp> -#include <boost/swap.hpp> -#include <cstring> -#include <new> - -namespace boost { - -template<class T> -class value_initialized -{ - private : - struct wrapper - { -#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592)) - typename -#endif - remove_const<T>::type data; - }; - - mutable -#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592)) - typename -#endif - aligned_storage<sizeof(wrapper), alignment_of<wrapper>::value>::type x; - - wrapper * wrapper_address() const - { - return static_cast<wrapper *>( static_cast<void*>(&x)); - } - - public : - - value_initialized() - { - std::memset(&x, 0, sizeof(x)); -#ifdef BOOST_MSVC -#pragma warning(push) -#if _MSC_VER >= 1310 -// When using MSVC 7.1 or higher, the following placement new expression may trigger warning C4345: -// "behavior change: an object of POD type constructed with an initializer of the form () -// will be default-initialized". It is safe to ignore this warning when using value_initialized. -#pragma warning(disable: 4345) -#endif -#endif - new (wrapper_address()) wrapper(); -#ifdef BOOST_MSVC -#pragma warning(pop) -#endif - } - - value_initialized(value_initialized const & arg) - { - new (wrapper_address()) wrapper( static_cast<wrapper const &>(*(arg.wrapper_address()))); - } - - value_initialized & operator=(value_initialized const & arg) - { - // Assignment is only allowed when T is non-const. - BOOST_STATIC_ASSERT( ! is_const<T>::value ); - *wrapper_address() = static_cast<wrapper const &>(*(arg.wrapper_address())); - return *this; - } - - ~value_initialized() - { - wrapper_address()->wrapper::~wrapper(); - } - - T const & data() const - { - return wrapper_address()->data; - } - - T& data() - { - return wrapper_address()->data; - } - - void swap(value_initialized & arg) - { - ::boost::swap( this->data(), arg.data() ); - } - - operator T const &() const { return this->data(); } - - operator T&() { return this->data(); } - -} ; - - - -template<class T> -T const& get ( value_initialized<T> const& x ) -{ - return x.data() ; -} -template<class T> -T& get ( value_initialized<T>& x ) -{ - return x.data() ; -} - -template<class T> -void swap ( value_initialized<T> & lhs, value_initialized<T> & rhs ) -{ - lhs.swap(rhs) ; -} - - -class initialized_value_t -{ - public : - - template <class T> operator T() const - { - return get( value_initialized<T>() ); - } -}; - -initialized_value_t const initialized_value = {} ; - - -} // namespace boost - - -#endif |