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Diffstat (limited to 'contrib/libstdc++/include/bits/stl_construct.h')
-rw-r--r-- | contrib/libstdc++/include/bits/stl_construct.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/contrib/libstdc++/include/bits/stl_construct.h b/contrib/libstdc++/include/bits/stl_construct.h new file mode 100644 index 0000000..6859138 --- /dev/null +++ b/contrib/libstdc++/include/bits/stl_construct.h @@ -0,0 +1,148 @@ +// nonstandard construct and destroy functions -*- C++ -*- + +// Copyright (C) 2001, 2002 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 2, 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. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING. If not, write to the Free +// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, +// USA. + +// As a special exception, you may use this file as part of a free software +// library without restriction. Specifically, if other files instantiate +// templates or use macros or inline functions from this file, or you compile +// this file and link it with other files to produce an executable, this +// file does not by itself cause the resulting executable to be covered by +// the GNU General Public License. This exception does not however +// invalidate any other reasons why the executable file might be covered by +// the GNU General Public License. + +/* + * + * 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 stl_construct.h + * This is an internal header file, included by other library headers. + * You should not attempt to use it directly. + */ + +#ifndef _CPP_BITS_STL_CONSTRUCT_H +#define _CPP_BITS_STL_CONSTRUCT_H 1 + +#include <bits/type_traits.h> +#include <new> + +namespace std +{ + /** + * @if maint + * Constructs an object in existing memory by invoking an allocated + * object's constructor with an initializer. + * @endif + */ + template <class _T1, class _T2> + inline void + _Construct(_T1* __p, const _T2& __value) + { new (static_cast<void*>(__p)) _T1(__value); } + + /** + * @if maint + * Constructs an object in existing memory by invoking an allocated + * object's default constructor (no initializers). + * @endif + */ + template <class _T1> + inline void + _Construct(_T1* __p) + { new (static_cast<void*>(__p)) _T1(); } + + /** + * @if maint + * Destroy a range of objects with nontrivial destructors. + * + * This is a helper function used only by _Destroy(). + * @endif + */ + template <class _ForwardIterator> + inline void + __destroy_aux(_ForwardIterator __first, _ForwardIterator __last, __false_type) + { for ( ; __first != __last; ++__first) _Destroy(&*__first); } + + /** + * @if maint + * Destroy a range of objects with trivial destructors. Since the destructors + * are trivial, there's nothing to do and hopefully this function will be + * entirely optimized away. + * + * This is a helper function used only by _Destroy(). + * @endif + */ + template <class _ForwardIterator> + inline void + __destroy_aux(_ForwardIterator, _ForwardIterator, __true_type) + { } + + /** + * @if maint + * Destroy the object pointed to by a pointer type. + * @endif + */ + template <class _Tp> + inline void + _Destroy(_Tp* __pointer) + { __pointer->~_Tp(); } + + /** + * @if maint + * 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. + * @endif + */ + template <class _ForwardIterator> + inline void + _Destroy(_ForwardIterator __first, _ForwardIterator __last) + { + typedef typename iterator_traits<_ForwardIterator>::value_type + _Value_type; + typedef typename __type_traits<_Value_type>::has_trivial_destructor + _Has_trivial_destructor; + + __destroy_aux(__first, __last, _Has_trivial_destructor()); + } +} // namespace std + +#endif /* _CPP_BITS_STL_CONSTRUCT_H */ + |