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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 */
-
- // Local Variables:
- // mode:C++
- // End:
-