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/*
* 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:
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