gcc/libstdc++-v3/include/bits/stl_construct.h

153 lines
4.9 KiB
C++

// nonstandard construct and destroy functions -*- 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) 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.
*/
/* NOTE: This is an internal header file, included by other STL headers.
* You should not attempt to use it directly.
*/
#ifndef _CPP_BITS_STL_CONSTRUCT_H
#define _CPP_BITS_STL_CONSTRUCT_H 1
#include <new>
namespace std
{
// construct and destroy. These functions are not part of the C++ standard,
// and are provided for backward compatibility with the HP STL. We also
// provide internal names _Construct and _Destroy that can be used within
// the library, so that standard-conforming pieces don't have to rely on
// non-standard extensions.
// Internal names
template <class _T1, class _T2>
inline void _Construct(_T1* __p, const _T2& __value) {
new ((void*) __p) _T1(__value);
}
template <class _T1>
inline void _Construct(_T1* __p) {
new ((void*) __p) _T1();
}
template <class _Tp>
inline void _Destroy(_Tp* __pointer) {
__pointer->~_Tp();
}
template <class _ForwardIterator>
void
__destroy_aux(_ForwardIterator __first, _ForwardIterator __last, __false_type)
{
for ( ; __first != __last; ++__first)
destroy(&*__first);
}
template <class _ForwardIterator>
inline void __destroy_aux(_ForwardIterator, _ForwardIterator, __true_type) {}
template <class _ForwardIterator, class _Tp>
inline void
__destroy(_ForwardIterator __first, _ForwardIterator __last, _Tp*)
{
typedef typename __type_traits<_Tp>::has_trivial_destructor
_Trivial_destructor;
__destroy_aux(__first, __last, _Trivial_destructor());
}
template <class _ForwardIterator>
inline void _Destroy(_ForwardIterator __first, _ForwardIterator __last) {
__destroy(__first, __last, __value_type(__first));
}
inline void _Destroy(char*, char*) {}
inline void _Destroy(int*, int*) {}
inline void _Destroy(long*, long*) {}
inline void _Destroy(float*, float*) {}
inline void _Destroy(double*, double*) {}
inline void _Destroy(wchar_t*, wchar_t*) {}
// --------------------------------------------------
// Old names from the HP STL.
template <class _T1, class _T2>
inline void construct(_T1* __p, const _T2& __value) {
_Construct(__p, __value);
}
template <class _T1>
inline void construct(_T1* __p) {
_Construct(__p);
}
template <class _Tp>
inline void destroy(_Tp* __pointer) {
_Destroy(__pointer);
}
template <class _ForwardIterator>
inline void destroy(_ForwardIterator __first, _ForwardIterator __last) {
_Destroy(__first, __last);
}
} // namespace std
#endif /* _CPP_BITS_STL_CONSTRUCT_H */
// Local Variables:
// mode:C++
// End: