stl_unin.h
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上传日期:2022-05-14
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文件大小:9k
源码类别:
STL
开发平台:
Visual C++
- /*
- *
- * 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 __SGI_STL_INTERNAL_UNINITIALIZED_H
- #define __SGI_STL_INTERNAL_UNINITIALIZED_H
- __STL_BEGIN_NAMESPACE
- // uninitialized_copy
- // Valid if copy construction is equivalent to assignment, and if the
- // destructor is trivial.
- template <class _InputIter, class _ForwardIter>
- inline _ForwardIter
- __uninitialized_copy_aux(_InputIter __first, _InputIter __last,
- _ForwardIter __result,
- __true_type)
- {
- return copy(__first, __last, __result);
- }
- template <class _InputIter, class _ForwardIter>
- _ForwardIter
- __uninitialized_copy_aux(_InputIter __first, _InputIter __last,
- _ForwardIter __result,
- __false_type)
- {
- _ForwardIter __cur = __result;
- __STL_TRY {
- for ( ; __first != __last; ++__first, ++__cur)
- _Construct(&*__cur, *__first);
- return __cur;
- }
- __STL_UNWIND(_Destroy(__result, __cur));
- }
- template <class _InputIter, class _ForwardIter, class _Tp>
- inline _ForwardIter
- __uninitialized_copy(_InputIter __first, _InputIter __last,
- _ForwardIter __result, _Tp*)
- {
- typedef typename __type_traits<_Tp>::is_POD_type _Is_POD;
- return __uninitialized_copy_aux(__first, __last, __result, _Is_POD());
- }
- template <class _InputIter, class _ForwardIter>
- inline _ForwardIter
- uninitialized_copy(_InputIter __first, _InputIter __last,
- _ForwardIter __result)
- {
- return __uninitialized_copy(__first, __last, __result,
- __VALUE_TYPE(__result));
- }
- 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);
- }
- // uninitialized_copy_n (not part of the C++ standard)
- template <class _InputIter, class _Size, class _ForwardIter>
- pair<_InputIter, _ForwardIter>
- __uninitialized_copy_n(_InputIter __first, _Size __count,
- _ForwardIter __result,
- input_iterator_tag)
- {
- _ForwardIter __cur = __result;
- __STL_TRY {
- for ( ; __count > 0 ; --__count, ++__first, ++__cur)
- _Construct(&*__cur, *__first);
- return pair<_InputIter, _ForwardIter>(__first, __cur);
- }
- __STL_UNWIND(_Destroy(__result, __cur));
- }
- template <class _RandomAccessIter, class _Size, class _ForwardIter>
- inline pair<_RandomAccessIter, _ForwardIter>
- __uninitialized_copy_n(_RandomAccessIter __first, _Size __count,
- _ForwardIter __result,
- random_access_iterator_tag) {
- _RandomAccessIter __last = __first + __count;
- return pair<_RandomAccessIter, _ForwardIter>(
- __last,
- uninitialized_copy(__first, __last, __result));
- }
- template <class _InputIter, class _Size, class _ForwardIter>
- inline pair<_InputIter, _ForwardIter>
- __uninitialized_copy_n(_InputIter __first, _Size __count,
- _ForwardIter __result) {
- return __uninitialized_copy_n(__first, __count, __result,
- __ITERATOR_CATEGORY(__first));
- }
- template <class _InputIter, class _Size, class _ForwardIter>
- inline pair<_InputIter, _ForwardIter>
- uninitialized_copy_n(_InputIter __first, _Size __count,
- _ForwardIter __result) {
- return __uninitialized_copy_n(__first, __count, __result,
- __ITERATOR_CATEGORY(__first));
- }
- // Valid if copy construction is equivalent to assignment, and if the
- // destructor is trivial.
- template <class _ForwardIter, class _Tp>
- inline void
- __uninitialized_fill_aux(_ForwardIter __first, _ForwardIter __last,
- const _Tp& __x, __true_type)
- {
- fill(__first, __last, __x);
- }
- template <class _ForwardIter, class _Tp>
- void
- __uninitialized_fill_aux(_ForwardIter __first, _ForwardIter __last,
- const _Tp& __x, __false_type)
- {
- _ForwardIter __cur = __first;
- __STL_TRY {
- for ( ; __cur != __last; ++__cur)
- _Construct(&*__cur, __x);
- }
- __STL_UNWIND(_Destroy(__first, __cur));
- }
- template <class _ForwardIter, class _Tp, class _Tp1>
- inline void __uninitialized_fill(_ForwardIter __first,
- _ForwardIter __last, const _Tp& __x, _Tp1*)
- {
- typedef typename __type_traits<_Tp1>::is_POD_type _Is_POD;
- __uninitialized_fill_aux(__first, __last, __x, _Is_POD());
- }
- template <class _ForwardIter, class _Tp>
- inline void uninitialized_fill(_ForwardIter __first,
- _ForwardIter __last,
- const _Tp& __x)
- {
- __uninitialized_fill(__first, __last, __x, __VALUE_TYPE(__first));
- }
- // Valid if copy construction is equivalent to assignment, and if the
- // destructor is trivial.
- template <class _ForwardIter, class _Size, class _Tp>
- inline _ForwardIter
- __uninitialized_fill_n_aux(_ForwardIter __first, _Size __n,
- const _Tp& __x, __true_type)
- {
- return fill_n(__first, __n, __x);
- }
- template <class _ForwardIter, class _Size, class _Tp>
- _ForwardIter
- __uninitialized_fill_n_aux(_ForwardIter __first, _Size __n,
- const _Tp& __x, __false_type)
- {
- _ForwardIter __cur = __first;
- __STL_TRY {
- for ( ; __n > 0; --__n, ++__cur)
- _Construct(&*__cur, __x);
- return __cur;
- }
- __STL_UNWIND(_Destroy(__first, __cur));
- }
- template <class _ForwardIter, class _Size, class _Tp, class _Tp1>
- inline _ForwardIter
- __uninitialized_fill_n(_ForwardIter __first, _Size __n, const _Tp& __x, _Tp1*)
- {
- typedef typename __type_traits<_Tp1>::is_POD_type _Is_POD;
- return __uninitialized_fill_n_aux(__first, __n, __x, _Is_POD());
- }
- template <class _ForwardIter, class _Size, class _Tp>
- inline _ForwardIter
- uninitialized_fill_n(_ForwardIter __first, _Size __n, const _Tp& __x)
- {
- return __uninitialized_fill_n(__first, __n, __x, __VALUE_TYPE(__first));
- }
- // 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 <class _InputIter1, class _InputIter2, class _ForwardIter>
- inline _ForwardIter
- __uninitialized_copy_copy(_InputIter1 __first1, _InputIter1 __last1,
- _InputIter2 __first2, _InputIter2 __last2,
- _ForwardIter __result)
- {
- _ForwardIter __mid = uninitialized_copy(__first1, __last1, __result);
- __STL_TRY {
- return uninitialized_copy(__first2, __last2, __mid);
- }
- __STL_UNWIND(_Destroy(__result, __mid));
- }
- // __uninitialized_fill_copy
- // Fills [result, mid) with x, and copies [first, last) into
- // [mid, mid + (last - first)).
- template <class _ForwardIter, class _Tp, class _InputIter>
- inline _ForwardIter
- __uninitialized_fill_copy(_ForwardIter __result, _ForwardIter __mid,
- const _Tp& __x,
- _InputIter __first, _InputIter __last)
- {
- uninitialized_fill(__result, __mid, __x);
- __STL_TRY {
- return uninitialized_copy(__first, __last, __mid);
- }
- __STL_UNWIND(_Destroy(__result, __mid));
- }
- // __uninitialized_copy_fill
- // Copies [first1, last1) into [first2, first2 + (last1 - first1)), and
- // fills [first2 + (last1 - first1), last2) with x.
- template <class _InputIter, class _ForwardIter, class _Tp>
- inline void
- __uninitialized_copy_fill(_InputIter __first1, _InputIter __last1,
- _ForwardIter __first2, _ForwardIter __last2,
- const _Tp& __x)
- {
- _ForwardIter __mid2 = uninitialized_copy(__first1, __last1, __first2);
- __STL_TRY {
- uninitialized_fill(__mid2, __last2, __x);
- }
- __STL_UNWIND(_Destroy(__first2, __mid2));
- }
- __STL_END_NAMESPACE
- #endif /* __SGI_STL_INTERNAL_UNINITIALIZED_H */
- // Local Variables:
- // mode:C++
- // End: