// nonstandard construct and destroy functions -*- C++ -*- // Copyright (C) 2001, 2002, 2003, 2004, 2005 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 _STL_CONSTRUCT_H #define _STL_CONSTRUCT_H 1 #include <bits/cpp_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<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); } /** * @if maint * Constructs an object in existing memory by invoking an allocated * object's default constructor (no initializers). * @endif */ template<typename _T1> inline void _Construct(_T1* __p) { // _GLIBCXX_RESOLVE_LIB_DEFECTS // 402. wrong new expression in [some_]allocator::construct ::new(static_cast<void*>(__p)) _T1(); } /** * @if maint * Destroy the object pointed to by a pointer type. * @endif */ template<typename _Tp> inline void _Destroy(_Tp* __pointer) { __pointer->~_Tp(); } /** * @if maint * Destroy a range of objects with nontrivial destructors. * * This is a helper function used only by _Destroy(). * @endif */ template<typename _ForwardIterator> inline void __destroy_aux(_ForwardIterator __first, _ForwardIterator __last, __false_type) { for (; __first != __last; ++__first) std::_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<typename _ForwardIterator> inline void __destroy_aux(_ForwardIterator, _ForwardIterator, __true_type) { } /** * @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<typename _ForwardIterator> inline void _Destroy(_ForwardIterator __first, _ForwardIterator __last) { typedef typename iterator_traits<_ForwardIterator>::value_type _Value_type; typedef typename std::__is_scalar<_Value_type>::__type _Has_trivial_destructor; std::__destroy_aux(__first, __last, _Has_trivial_destructor()); } /** * @if maint * 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. * @endif */ template <typename _Tp> class allocator; template<typename _ForwardIterator, typename _Allocator> void _Destroy(_ForwardIterator __first, _ForwardIterator __last, _Allocator __alloc) { for (; __first != __last; ++__first) __alloc.destroy(&*__first); } template<typename _ForwardIterator, typename _Allocator, typename _Tp> inline void _Destroy(_ForwardIterator __first, _ForwardIterator __last, allocator<_Tp>) { _Destroy(__first, __last); } } // namespace std #endif /* _STL_CONSTRUCT_H */