stl_uninitialized.h
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上传用户:sichengcw
上传日期:2009-02-17
资源大小:202k
文件大小:8k
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
- // Valid if copy construction is equivalent to assignment, and if the
- // destructor is trivial.
- template <class InputIterator, class ForwardIterator>
- inline ForwardIterator
- __uninitialized_copy_aux(InputIterator first, InputIterator last,
- ForwardIterator result,
- __true_type) {
- return copy(first, last, result);
- }
- template <class InputIterator, class ForwardIterator>
- ForwardIterator
- __uninitialized_copy_aux(InputIterator first, InputIterator last,
- ForwardIterator result,
- __false_type) {
- ForwardIterator cur = result;
- __STL_TRY {
- for ( ; first != last; ++first, ++cur)
- construct(&*cur, *first);
- return cur;
- }
- __STL_UNWIND(destroy(result, cur));
- }
- template <class InputIterator, class ForwardIterator, class T>
- inline ForwardIterator
- __uninitialized_copy(InputIterator first, InputIterator last,
- ForwardIterator result, T*) {
- typedef typename __type_traits<T>::is_POD_type is_POD;
- return __uninitialized_copy_aux(first, last, result, is_POD());
- }
- template <class InputIterator, class ForwardIterator>
- inline ForwardIterator
- uninitialized_copy(InputIterator first, InputIterator last,
- ForwardIterator 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);
- }
- template <class InputIterator, class Size, class ForwardIterator>
- pair<InputIterator, ForwardIterator>
- __uninitialized_copy_n(InputIterator first, Size count,
- ForwardIterator result,
- input_iterator_tag) {
- ForwardIterator cur = result;
- __STL_TRY {
- for ( ; count > 0 ; --count, ++first, ++cur)
- construct(&*cur, *first);
- return pair<InputIterator, ForwardIterator>(first, cur);
- }
- __STL_UNWIND(destroy(result, cur));
- }
- template <class RandomAccessIterator, class Size, class ForwardIterator>
- inline pair<RandomAccessIterator, ForwardIterator>
- __uninitialized_copy_n(RandomAccessIterator first, Size count,
- ForwardIterator result,
- random_access_iterator_tag) {
- RandomAccessIterator last = first + count;
- return make_pair(last, uninitialized_copy(first, last, result));
- }
- template <class InputIterator, class Size, class ForwardIterator>
- inline pair<InputIterator, ForwardIterator>
- uninitialized_copy_n(InputIterator first, Size count,
- ForwardIterator 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 ForwardIterator, class T>
- inline void
- __uninitialized_fill_aux(ForwardIterator first, ForwardIterator last,
- const T& x, __true_type)
- {
- fill(first, last, x);
- }
- template <class ForwardIterator, class T>
- void
- __uninitialized_fill_aux(ForwardIterator first, ForwardIterator last,
- const T& x, __false_type)
- {
- ForwardIterator cur = first;
- __STL_TRY {
- for ( ; cur != last; ++cur)
- construct(&*cur, x);
- }
- __STL_UNWIND(destroy(first, cur));
- }
- template <class ForwardIterator, class T, class T1>
- inline void __uninitialized_fill(ForwardIterator first, ForwardIterator last,
- const T& x, T1*) {
- typedef typename __type_traits<T1>::is_POD_type is_POD;
- __uninitialized_fill_aux(first, last, x, is_POD());
- }
- template <class ForwardIterator, class T>
- inline void uninitialized_fill(ForwardIterator first, ForwardIterator last,
- const T& 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 ForwardIterator, class Size, class T>
- inline ForwardIterator
- __uninitialized_fill_n_aux(ForwardIterator first, Size n,
- const T& x, __true_type) {
- return fill_n(first, n, x);
- }
- template <class ForwardIterator, class Size, class T>
- ForwardIterator
- __uninitialized_fill_n_aux(ForwardIterator first, Size n,
- const T& x, __false_type) {
- ForwardIterator cur = first;
- __STL_TRY {
- for ( ; n > 0; --n, ++cur)
- construct(&*cur, x);
- return cur;
- }
- __STL_UNWIND(destroy(first, cur));
- }
- template <class ForwardIterator, class Size, class T, class T1>
- inline ForwardIterator __uninitialized_fill_n(ForwardIterator first, Size n,
- const T& x, T1*) {
- typedef typename __type_traits<T1>::is_POD_type is_POD;
- return __uninitialized_fill_n_aux(first, n, x, is_POD());
- }
- template <class ForwardIterator, class Size, class T>
- inline ForwardIterator uninitialized_fill_n(ForwardIterator first, Size n,
- const T& x) {
- return __uninitialized_fill_n(first, n, x, value_type(first));
- }
- // Copies [first1, last1) into [result, result + (last1 - first1)), and
- // copies [first2, last2) into
- // [result, result + (last1 - first1) + (last2 - first2)).
- template <class InputIterator1, class InputIterator2, class ForwardIterator>
- inline ForwardIterator
- __uninitialized_copy_copy(InputIterator1 first1, InputIterator1 last1,
- InputIterator2 first2, InputIterator2 last2,
- ForwardIterator result) {
- ForwardIterator mid = uninitialized_copy(first1, last1, result);
- __STL_TRY {
- return uninitialized_copy(first2, last2, mid);
- }
- __STL_UNWIND(destroy(result, mid));
- }
- // Fills [result, mid) with x, and copies [first, last) into
- // [mid, mid + (last - first)).
- template <class ForwardIterator, class T, class InputIterator>
- inline ForwardIterator
- __uninitialized_fill_copy(ForwardIterator result, ForwardIterator mid,
- const T& x,
- InputIterator first, InputIterator last) {
- uninitialized_fill(result, mid, x);
- __STL_TRY {
- return uninitialized_copy(first, last, mid);
- }
- __STL_UNWIND(destroy(result, mid));
- }
- // Copies [first1, last1) into [first2, first2 + (last1 - first1)), and
- // fills [first2 + (last1 - first1), last2) with x.
- template <class InputIterator, class ForwardIterator, class T>
- inline void
- __uninitialized_copy_fill(InputIterator first1, InputIterator last1,
- ForwardIterator first2, ForwardIterator last2,
- const T& x) {
- ForwardIterator 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: