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+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Copyright (c) 1996-1998
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1997
+ * Moscow Center for SPARC Technology
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */
+
+/* NOTE: This is an internal header file, included by other STL headers.
+ * You should not attempt to use it directly.
+ */
+
+#ifndef _STLP_INTERNAL_ITERATOR_H
+#define _STLP_INTERNAL_ITERATOR_H
+
+#ifndef _STLP_INTERNAL_ITERATOR_BASE_H
+# include <stl/_iterator_base.h>
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
+// This is the new version of reverse_iterator, as defined in the
+// draft C++ standard. It relies on the iterator_traits template,
+// which in turn relies on partial specialization. The class
+// reverse_bidirectional_iterator is no longer part of the draft
+// standard, but it is retained for backward compatibility.
+
+template <class _Iterator>
+class reverse_iterator :
+ public iterator<typename iterator_traits<_Iterator>::iterator_category,
+ typename iterator_traits<_Iterator>::value_type,
+ typename iterator_traits<_Iterator>::difference_type,
+ typename iterator_traits<_Iterator>::pointer,
+ typename iterator_traits<_Iterator>::reference> {
+protected:
+ _Iterator current;
+ typedef reverse_iterator<_Iterator> _Self;
+public:
+ typedef typename iterator_traits<_Iterator>::iterator_category iterator_category;
+ typedef typename iterator_traits<_Iterator>::value_type value_type;
+ typedef typename iterator_traits<_Iterator>::difference_type difference_type;
+ typedef typename iterator_traits<_Iterator>::pointer pointer;
+ typedef typename iterator_traits<_Iterator>::reference reference;
+ typedef _Iterator iterator_type;
+public:
+ reverse_iterator() {}
+ explicit reverse_iterator(iterator_type __x) : current(__x) {}
+ reverse_iterator(const _Self& __x) : current(__x.current) {}
+ _Self& operator = (const _Self& __x) { current = __x.base(); return *this; }
+# if defined (_STLP_MEMBER_TEMPLATES)
+ template <class _Iter>
+ reverse_iterator(const reverse_iterator<_Iter>& __x) : current(__x.base()) {}
+ template <class _Iter>
+ _Self& operator = (const reverse_iterator<_Iter>& __x) { current = __x.base(); return *this; }
+# endif /* _STLP_MEMBER_TEMPLATES */
+
+ iterator_type base() const { return current; }
+ reference operator*() const {
+ _Iterator __tmp = current;
+ return *--__tmp;
+ }
+ _STLP_DEFINE_ARROW_OPERATOR
+ _Self& operator++() {
+ --current;
+ return *this;
+ }
+ _Self operator++(int) {
+ _Self __tmp = *this;
+ --current;
+ return __tmp;
+ }
+ _Self& operator--() {
+ ++current;
+ return *this;
+ }
+ _Self operator--(int) {
+ _Self __tmp = *this;
+ ++current;
+ return __tmp;
+ }
+
+ _Self operator+(difference_type __n) const { return _Self(current - __n); }
+ _Self& operator+=(difference_type __n) {
+ current -= __n;
+ return *this;
+ }
+ _Self operator-(difference_type __n) const { return _Self(current + __n); }
+ _Self& operator-=(difference_type __n) {
+ current += __n;
+ return *this;
+ }
+ reference operator[](difference_type __n) const { return *(*this + __n); }
+};
+
+template <class _Iterator>
+inline bool _STLP_CALL operator==(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return __x.base() == __y.base(); }
+
+template <class _Iterator>
+inline bool _STLP_CALL operator<(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return __y.base() < __x.base(); }
+
+# if defined (_STLP_USE_SEPARATE_RELOPS_NAMESPACE)
+template <class _Iterator>
+inline bool _STLP_CALL operator!=(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return !(__x == __y); }
+
+template <class _Iterator>
+inline bool _STLP_CALL operator>(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return __y < __x; }
+
+template <class _Iterator>
+inline bool _STLP_CALL operator<=(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return !(__y < __x); }
+
+template <class _Iterator>
+inline bool _STLP_CALL operator>=(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return !(__x < __y); }
+# endif /* _STLP_USE_SEPARATE_RELOPS_NAMESPACE */
+
+template <class _Iterator>
+# if defined (__SUNPRO_CC)
+inline ptrdiff_t _STLP_CALL
+# else
+inline typename reverse_iterator<_Iterator>::difference_type _STLP_CALL
+# endif
+operator-(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+{ return __y.base() - __x.base(); }
+
+template <class _Iterator, class _DifferenceType>
+inline reverse_iterator<_Iterator> _STLP_CALL
+operator+(_DifferenceType n,const reverse_iterator<_Iterator>& x)
+{ return x.operator+(n); }
+#endif
+
+template <class _Container>
+class back_insert_iterator
+ : public iterator<output_iterator_tag, void, void, void, void> {
+ typedef back_insert_iterator<_Container> _Self;
+protected:
+ //c is a Standard name (24.4.2.1), do no make it STLport naming convention compliant.
+ _Container *container;
+public:
+ typedef _Container container_type;
+ typedef output_iterator_tag iterator_category;
+
+ explicit back_insert_iterator(_Container& __x) : container(&__x) {}
+
+ _Self& operator=(const _Self& __other) {
+ container = __other.container;
+ return *this;
+ }
+ _Self& operator=(const typename _Container::value_type& __val) {
+ container->push_back(__val);
+ return *this;
+ }
+ _Self& operator*() { return *this; }
+ _Self& operator++() { return *this; }
+ _Self operator++(int) { return *this; }
+};
+
+template <class _Container>
+inline back_insert_iterator<_Container> _STLP_CALL back_inserter(_Container& __x)
+{ return back_insert_iterator<_Container>(__x); }
+
+template <class _Container>
+class front_insert_iterator
+ : public iterator<output_iterator_tag, void, void, void, void> {
+ typedef front_insert_iterator<_Container> _Self;
+protected:
+ //c is a Standard name (24.4.2.3), do no make it STLport naming convention compliant.
+ _Container *container;
+public:
+ typedef _Container container_type;
+ typedef output_iterator_tag iterator_category;
+ explicit front_insert_iterator(_Container& __x) : container(&__x) {}
+
+ _Self& operator=(const _Self& __other) {
+ container = __other.container;
+ return *this;
+ }
+ _Self& operator=(const typename _Container::value_type& __val) {
+ container->push_front(__val);
+ return *this;
+ }
+ _Self& operator*() { return *this; }
+ _Self& operator++() { return *this; }
+ _Self operator++(int) { return *this; }
+};
+
+template <class _Container>
+inline front_insert_iterator<_Container> _STLP_CALL front_inserter(_Container& __x)
+{ return front_insert_iterator<_Container>(__x); }
+
+template <class _Container>
+class insert_iterator
+ : public iterator<output_iterator_tag, void, void, void, void> {
+ typedef insert_iterator<_Container> _Self;
+protected:
+ //container is a Standard name (24.4.2.5), do no make it STLport naming convention compliant.
+ _Container *container;
+ typename _Container::iterator _M_iter;
+public:
+ typedef _Container container_type;
+ typedef output_iterator_tag iterator_category;
+ insert_iterator(_Container& __x, typename _Container::iterator __i)
+ : container(&__x), _M_iter(__i) {}
+
+ _Self& operator=(_Self const& __other) {
+ container = __other.container;
+ _M_iter = __other._M_iter;
+ return *this;
+ }
+ _Self& operator=(const typename _Container::value_type& __val) {
+ _M_iter = container->insert(_M_iter, __val);
+ ++_M_iter;
+ return *this;
+ }
+ _Self& operator*() { return *this; }
+ _Self& operator++() { return *this; }
+ _Self& operator++(int) { return *this; }
+};
+
+template <class _Container, class _Iterator>
+inline insert_iterator<_Container> _STLP_CALL
+inserter(_Container& __x, _Iterator __i) {
+ typedef typename _Container::iterator __iter;
+ return insert_iterator<_Container>(__x, __iter(__i));
+}
+
+_STLP_END_NAMESPACE
+
+#if ! defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) || defined (_STLP_USE_OLD_HP_ITERATOR_QUERIES)
+# include <stl/_iterator_old.h>
+#endif
+
+#endif /* _STLP_INTERNAL_ITERATOR_H */
+
+// Local Variables:
+// mode:C++
+// End:
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