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Diffstat (limited to 'gcc-4.9/libstdc++-v3/include/bits/stl_construct.h')
| -rw-r--r-- | gcc-4.9/libstdc++-v3/include/bits/stl_construct.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/bits/stl_construct.h b/gcc-4.9/libstdc++-v3/include/bits/stl_construct.h new file mode 100644 index 0000000..df245c7 --- /dev/null +++ b/gcc-4.9/libstdc++-v3/include/bits/stl_construct.h @@ -0,0 +1,158 @@ +// nonstandard construct and destroy functions -*- C++ -*- + +// Copyright (C) 2001-2014 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// Under Section 7 of GPL version 3, you are granted additional +// permissions described in the GCC Runtime Library Exception, version +// 3.1, as published by the Free Software Foundation. + +// You should have received a copy of the GNU General Public License and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// <http://www.gnu.org/licenses/>. + +/* + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + */ + +/** @file bits/stl_construct.h + * This is an internal header file, included by other library headers. + * Do not attempt to use it directly. @headername{memory} + */ + +#ifndef _STL_CONSTRUCT_H +#define _STL_CONSTRUCT_H 1 + +#include <new> +#include <bits/move.h> +#include <ext/alloc_traits.h> + +namespace std _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + /** + * Constructs an object in existing memory by invoking an allocated + * object's constructor with an initializer. + */ +#if __cplusplus >= 201103L + template<typename _T1, typename... _Args> + inline void + _Construct(_T1* __p, _Args&&... __args) + { ::new(static_cast<void*>(__p)) _T1(std::forward<_Args>(__args)...); } +#else + template<typename _T1, typename _T2> + inline void + _Construct(_T1* __p, const _T2& __value) + { + // _GLIBCXX_RESOLVE_LIB_DEFECTS + // 402. wrong new expression in [some_]allocator::construct + ::new(static_cast<void*>(__p)) _T1(__value); + } +#endif + + /** + * Destroy the object pointed to by a pointer type. + */ + template<typename _Tp> + inline void + _Destroy(_Tp* __pointer) + { __pointer->~_Tp(); } + + template<bool> + struct _Destroy_aux + { + template<typename _ForwardIterator> + static void + __destroy(_ForwardIterator __first, _ForwardIterator __last) + { + for (; __first != __last; ++__first) + std::_Destroy(std::__addressof(*__first)); + } + }; + + template<> + struct _Destroy_aux<true> + { + template<typename _ForwardIterator> + static void + __destroy(_ForwardIterator, _ForwardIterator) { } + }; + + /** + * Destroy a range of objects. If the value_type of the object has + * a trivial destructor, the compiler should optimize all of this + * away, otherwise the objects' destructors must be invoked. + */ + template<typename _ForwardIterator> + inline void + _Destroy(_ForwardIterator __first, _ForwardIterator __last) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _Value_type; + std::_Destroy_aux<__has_trivial_destructor(_Value_type)>:: + __destroy(__first, __last); + } + + /** + * Destroy a range of objects using the supplied allocator. For + * nondefault allocators we do not optimize away invocation of + * destroy() even if _Tp has a trivial destructor. + */ + + template<typename _ForwardIterator, typename _Allocator> + void + _Destroy(_ForwardIterator __first, _ForwardIterator __last, + _Allocator& __alloc) + { + typedef __gnu_cxx::__alloc_traits<_Allocator> __traits; + for (; __first != __last; ++__first) + __traits::destroy(__alloc, std::__addressof(*__first)); + } + + template<typename _ForwardIterator, typename _Tp> + inline void + _Destroy(_ForwardIterator __first, _ForwardIterator __last, + allocator<_Tp>&) + { + _Destroy(__first, __last); + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace std + +#endif /* _STL_CONSTRUCT_H */ + |