autovec.h
// This code is based on bits/std_memory.h from GCC.
// The copyright and license information from the
// original code is below.
// 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 _util_misc_autovec_h
#define _util_misc_autovec_h
#include <stddef.h>
namespace sc {
template <class T>
class auto_vec {
T* d_;
public:
typedef T element_type;
explicit auto_vec(T*d = 0) throw(): d_(d) {}
auto_vec(auto_vec &av) throw(): d_(av.release()) {}
~auto_vec() throw() { delete[] d_; }
auto_vec &operator = (auto_vec &av) throw() {
reset(av.release());
return *this;
}
T* get() const throw() { return d_; }
T &operator[](size_t i) throw() { return d_[i]; }
T* release() throw() {
T *r = d_;
d_ = 0;
return r;
}
void reset(T*d=0) throw() {
if (d != d_) {
delete[] d_;
d_ = d;
}
}
};
}
#endif // _util_misc_autovec_h