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Whole document tree                   std_memory.h Go to the documentation of this file. // <memory> -*- C++ -*- // Copyright (C) 2001 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) 1997-1999 * 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. * */ #ifndef _CPP_MEMORY #define _CPP_MEMORY 1 #pragma GCC system_header #include <bits/stl_algobase.h> #include <bits/stl_alloc.h> #include <bits/stl_construct.h> #include <bits/stl_iterator_base_types.h> //for iterator_traits #include <bits/stl_tempbuf.h> #include <bits/stl_uninitialized.h> #include <bits/stl_raw_storage_iter.h> namespace std { template<class _Tp1> struct auto_ptr_ref { _Tp1* _M_ptr; auto_ptr_ref(_Tp1* __p) : _M_ptr(__p) {} }; template <class _Tp> class auto_ptr { private: _Tp* _M_ptr; public: typedef _Tp element_type; explicit auto_ptr(_Tp* __p = 0) __STL_NOTHROW : _M_ptr(__p) {} auto_ptr(auto_ptr& __a) __STL_NOTHROW : _M_ptr(__a.release()) {} template <class _Tp1> auto_ptr(auto_ptr<_Tp1>& __a) __STL_NOTHROW : _M_ptr(__a.release()) {} auto_ptr& operator=(auto_ptr& __a) __STL_NOTHROW { reset(__a.release()); return *this; } template <class _Tp1> auto_ptr& operator=(auto_ptr<_Tp1>& __a) __STL_NOTHROW { reset(__a.release()); return *this; } // Note: The C++ standard says there is supposed to be an empty throw // specification here, but omitting it is standard conforming. Its // presence can be detected only if _Tp::~_Tp() throws, but (17.4.3.6/2) // this is prohibited. ~auto_ptr() { delete _M_ptr; } _Tp& operator*() const __STL_NOTHROW { return *_M_ptr; } _Tp* operator->() const __STL_NOTHROW { return _M_ptr; } _Tp* get() const __STL_NOTHROW { return _M_ptr; } _Tp* release() __STL_NOTHROW { _Tp* __tmp = _M_ptr; _M_ptr = 0; return __tmp; } void reset(_Tp* __p = 0) __STL_NOTHROW { if (__p != _M_ptr) { delete _M_ptr; _M_ptr = __p; } } // According to the C++ standard, these conversions are required. Most // present-day compilers, however, do not enforce that requirement---and, // in fact, most present-day compilers do not support the language // features that these conversions rely on. public: auto_ptr(auto_ptr_ref<_Tp> __ref) __STL_NOTHROW : _M_ptr(__ref._M_ptr) {} auto_ptr& operator=(auto_ptr_ref<_Tp> __ref) __STL_NOTHROW { if (__ref._M_ptr != this->get()) { delete _M_ptr; _M_ptr = __ref._M_ptr; } return *this; } template <class _Tp1> operator auto_ptr_ref<_Tp1>() __STL_NOTHROW { return auto_ptr_ref<_Tp>(this->release()); } template <class _Tp1> operator auto_ptr<_Tp1>() __STL_NOTHROW { return auto_ptr<_Tp1>(this->release()); } }; } // namespace std #endif /* _CPP_MEMORY */ // Local Variables: // mode:C++ // End: