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Diffstat (limited to 'contrib/libstdc++/stl/stl_uninitialized.h')
-rw-r--r-- | contrib/libstdc++/stl/stl_uninitialized.h | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/contrib/libstdc++/stl/stl_uninitialized.h b/contrib/libstdc++/stl/stl_uninitialized.h new file mode 100644 index 0000000..661bbe9 --- /dev/null +++ b/contrib/libstdc++/stl/stl_uninitialized.h @@ -0,0 +1,242 @@ +/* + * + * 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: |