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// Raw memory manipulators -*- 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.
*/
/** @file stl_uninitialized.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _CPP_BITS_STL_UNINITIALIZED_H
#define _CPP_BITS_STL_UNINITIALIZED_H 1
#include <cstring>
namespace std
{
// uninitialized_copy
template<typename _InputIter, typename _ForwardIter>
inline _ForwardIter
__uninitialized_copy_aux(_InputIter __first, _InputIter __last,
_ForwardIter __result,
__true_type)
{ return copy(__first, __last, __result); }
template<typename _InputIter, typename _ForwardIter>
_ForwardIter
__uninitialized_copy_aux(_InputIter __first, _InputIter __last,
_ForwardIter __result,
__false_type)
{
_ForwardIter __cur = __result;
try {
for ( ; __first != __last; ++__first, ++__cur)
_Construct(&*__cur, *__first);
return __cur;
}
catch(...)
{
_Destroy(__result, __cur);
__throw_exception_again;
}
}
/**
* @brief Copies the range [first,last) into result.
* @param first An input iterator.
* @param last An input iterator.
* @param result An output iterator.
* @return result + (first - last)
*
* Like copy(), but does not require an initialized output range.
*/
template<typename _InputIter, typename _ForwardIter>
inline _ForwardIter
uninitialized_copy(_InputIter __first, _InputIter __last, _ForwardIter __result)
{
typedef typename iterator_traits<_ForwardIter>::value_type _ValueType;
typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
return __uninitialized_copy_aux(__first, __last, __result, _Is_POD());
}
inline char*
uninitialized_copy(const char* __first, const char* __last, char* __result)
{
memmove(__result, __first, __last - __first);
return __result + (__last - __first);
}
inline wchar_t*
uninitialized_copy(const wchar_t* __first, const wchar_t* __last,
wchar_t* __result)
{
memmove(__result, __first, sizeof(wchar_t) * (__last - __first));
return __result + (__last - __first);
}
// Valid if copy construction is equivalent to assignment, and if the
// destructor is trivial.
template<typename _ForwardIter, typename _Tp>
inline void
__uninitialized_fill_aux(_ForwardIter __first, _ForwardIter __last,
const _Tp& __x, __true_type)
{ fill(__first, __last, __x); }
template<typename _ForwardIter, typename _Tp>
void
__uninitialized_fill_aux(_ForwardIter __first, _ForwardIter __last,
const _Tp& __x, __false_type)
{
_ForwardIter __cur = __first;
try {
for ( ; __cur != __last; ++__cur)
_Construct(&*__cur, __x);
}
catch(...)
{
_Destroy(__first, __cur);
__throw_exception_again;
}
}
/**
* @brief Copies the value x into the range [first,last).
* @param first An input iterator.
* @param last An input iterator.
* @param x The source value.
* @return Nothing.
*
* Like fill(), but does not require an initialized output range.
*/
template<typename _ForwardIter, typename _Tp>
inline void
uninitialized_fill(_ForwardIter __first, _ForwardIter __last, const _Tp& __x)
{
typedef typename iterator_traits<_ForwardIter>::value_type _ValueType;
typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
__uninitialized_fill_aux(__first, __last, __x, _Is_POD());
}
// Valid if copy construction is equivalent to assignment, and if the
// destructor is trivial.
template<typename _ForwardIter, typename _Size, typename _Tp>
inline _ForwardIter
__uninitialized_fill_n_aux(_ForwardIter __first, _Size __n,
const _Tp& __x, __true_type)
{
return fill_n(__first, __n, __x);
}
template<typename _ForwardIter, typename _Size, typename _Tp>
_ForwardIter
__uninitialized_fill_n_aux(_ForwardIter __first, _Size __n,
const _Tp& __x, __false_type)
{
_ForwardIter __cur = __first;
try {
for ( ; __n > 0; --__n, ++__cur)
_Construct(&*__cur, __x);
return __cur;
}
catch(...)
{
_Destroy(__first, __cur);
__throw_exception_again;
}
}
/**
* @brief Copies the value x into the range [first,first+n).
* @param first An input iterator.
* @param n The number of copies to make.
* @param x The source value.
* @return first+n
*
* Like fill_n(), but does not require an initialized output range.
*/
template<typename _ForwardIter, typename _Size, typename _Tp>
inline _ForwardIter
uninitialized_fill_n(_ForwardIter __first, _Size __n, const _Tp& __x)
{
typedef typename iterator_traits<_ForwardIter>::value_type _ValueType;
typedef typename __type_traits<_ValueType>::is_POD_type _Is_POD;
return __uninitialized_fill_n_aux(__first, __n, __x, _Is_POD());
}
// Extensions: __uninitialized_copy_copy, __uninitialized_copy_fill,
// __uninitialized_fill_copy.
// __uninitialized_copy_copy
// Copies [first1, last1) into [result, result + (last1 - first1)), and
// copies [first2, last2) into
// [result, result + (last1 - first1) + (last2 - first2)).
template<typename _InputIter1, typename _InputIter2, typename _ForwardIter>
inline _ForwardIter
__uninitialized_copy_copy(_InputIter1 __first1, _InputIter1 __last1,
_InputIter2 __first2, _InputIter2 __last2,
_ForwardIter __result)
{
_ForwardIter __mid = uninitialized_copy(__first1, __last1, __result);
try {
return uninitialized_copy(__first2, __last2, __mid);
}
catch(...)
{
_Destroy(__result, __mid);
__throw_exception_again;
}
}
// __uninitialized_fill_copy
// Fills [result, mid) with x, and copies [first, last) into
// [mid, mid + (last - first)).
template<typename _ForwardIter, typename _Tp, typename _InputIter>
inline _ForwardIter
__uninitialized_fill_copy(_ForwardIter __result, _ForwardIter __mid,
const _Tp& __x,
_InputIter __first, _InputIter __last)
{
uninitialized_fill(__result, __mid, __x);
try {
return uninitialized_copy(__first, __last, __mid);
}
catch(...)
{
_Destroy(__result, __mid);
__throw_exception_again;
}
}
// __uninitialized_copy_fill
// Copies [first1, last1) into [first2, first2 + (last1 - first1)), and
// fills [first2 + (last1 - first1), last2) with x.
template<typename _InputIter, typename _ForwardIter, typename _Tp>
inline void
__uninitialized_copy_fill(_InputIter __first1, _InputIter __last1,
_ForwardIter __first2, _ForwardIter __last2,
const _Tp& __x)
{
_ForwardIter __mid2 = uninitialized_copy(__first1, __last1, __first2);
try {
uninitialized_fill(__mid2, __last2, __x);
}
catch(...)
{
_Destroy(__first2, __mid2);
__throw_exception_again;
}
}
} // namespace std
#endif /* _CPP_BITS_STL_UNINITIALIZED_H */
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// mode:C++
// End:
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