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+/*
+ *
+ * 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
+ * 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_ALGOBASE_H
+#define __SGI_STL_INTERNAL_ALGOBASE_H
+
+#ifndef __STL_CONFIG_H
+#include <stl_config.h>
+#endif
+#ifndef __SGI_STL_INTERNAL_RELOPS
+#include <stl_relops.h>
+#endif
+#ifndef __SGI_STL_INTERNAL_PAIR_H
+#include <stl_pair.h>
+#endif
+#ifndef __TYPE_TRAITS_H_
+#include <type_traits.h>
+#endif
+
+#include <string.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <new.h>
+#include <iostream.h>
+
+#ifndef __SGI_STL_INTERNAL_ITERATOR_H
+#include <stl_iterator.h>
+#endif
+
+__STL_BEGIN_NAMESPACE
+
+template <class ForwardIterator1, class ForwardIterator2, class T>
+inline void __iter_swap(ForwardIterator1 a, ForwardIterator2 b, T*) {
+ T tmp = *a;
+ *a = *b;
+ *b = tmp;
+}
+
+template <class ForwardIterator1, class ForwardIterator2>
+inline void iter_swap(ForwardIterator1 a, ForwardIterator2 b) {
+ __iter_swap(a, b, value_type(a));
+}
+
+template <class T>
+inline void swap(T& a, T& b) {
+ T tmp = a;
+ a = b;
+ b = tmp;
+}
+
+#ifndef __BORLANDC__
+
+template <class T>
+inline const T& min(const T& a, const T& b) {
+ return b < a ? b : a;
+}
+
+template <class T>
+inline const T& max(const T& a, const T& b) {
+ return a < b ? b : a;
+}
+
+#endif /* __BORLANDC__ */
+
+template <class T, class Compare>
+inline const T& min(const T& a, const T& b, Compare comp) {
+ return comp(b, a) ? b : a;
+}
+
+template <class T, class Compare>
+inline const T& max(const T& a, const T& b, Compare comp) {
+ return comp(a, b) ? b : a;
+}
+
+template <class InputIterator, class OutputIterator>
+inline OutputIterator __copy(InputIterator first, InputIterator last,
+ OutputIterator result, input_iterator_tag)
+{
+ for ( ; first != last; ++result, ++first)
+ *result = *first;
+ return result;
+}
+
+template <class RandomAccessIterator, class OutputIterator, class Distance>
+inline OutputIterator
+__copy_d(RandomAccessIterator first, RandomAccessIterator last,
+ OutputIterator result, Distance*)
+{
+ for (Distance n = last - first; n > 0; --n, ++result, ++first)
+ *result = *first;
+ return result;
+}
+
+template <class RandomAccessIterator, class OutputIterator>
+inline OutputIterator
+__copy(RandomAccessIterator first, RandomAccessIterator last,
+ OutputIterator result, random_access_iterator_tag)
+{
+ return __copy_d(first, last, result, distance_type(first));
+}
+
+template <class InputIterator, class OutputIterator>
+struct __copy_dispatch
+{
+ OutputIterator operator()(InputIterator first, InputIterator last,
+ OutputIterator result) {
+ return __copy(first, last, result, iterator_category(first));
+ }
+};
+
+#ifdef __STL_CLASS_PARTIAL_SPECIALIZATION
+
+template <class T>
+inline T* __copy_t(const T* first, const T* last, T* result, __true_type) {
+ memmove(result, first, sizeof(T) * (last - first));
+ return result + (last - first);
+}
+
+template <class T>
+inline T* __copy_t(const T* first, const T* last, T* result, __false_type) {
+ return __copy_d(first, last, result, (ptrdiff_t*) 0);
+}
+
+template <class T>
+struct __copy_dispatch<T*, T*>
+{
+ T* operator()(T* first, T* last, T* result) {
+ typedef typename __type_traits<T>::has_trivial_assignment_operator t;
+ return __copy_t(first, last, result, t());
+ }
+};
+
+template <class T>
+struct __copy_dispatch<const T*, T*>
+{
+ T* operator()(const T* first, const T* last, T* result) {
+ typedef typename __type_traits<T>::has_trivial_assignment_operator t;
+ return __copy_t(first, last, result, t());
+ }
+};
+
+#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */
+
+template <class InputIterator, class OutputIterator>
+inline OutputIterator copy(InputIterator first, InputIterator last,
+ OutputIterator result)
+{
+ return __copy_dispatch<InputIterator,OutputIterator>()(first, last, result);
+}
+
+inline char* copy(const char* first, const char* last, char* result) {
+ memmove(result, first, last - first);
+ return result + (last - first);
+}
+
+inline wchar_t* 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 BidirectionalIterator1, class BidirectionalIterator2>
+inline BidirectionalIterator2 __copy_backward(BidirectionalIterator1 first,
+ BidirectionalIterator1 last,
+ BidirectionalIterator2 result) {
+ while (first != last) *--result = *--last;
+ return result;
+}
+
+
+template <class BidirectionalIterator1, class BidirectionalIterator2>
+struct __copy_backward_dispatch
+{
+ BidirectionalIterator2 operator()(BidirectionalIterator1 first,
+ BidirectionalIterator1 last,
+ BidirectionalIterator2 result) {
+ return __copy_backward(first, last, result);
+ }
+};
+
+#ifdef __STL_CLASS_PARTIAL_SPECIALIZATION
+
+template <class T>
+inline T* __copy_backward_t(const T* first, const T* last, T* result,
+ __true_type) {
+ const ptrdiff_t N = last - first;
+ memmove(result - N, first, sizeof(T) * N);
+ return result - N;
+}
+
+template <class T>
+inline T* __copy_backward_t(const T* first, const T* last, T* result,
+ __false_type) {
+ return __copy_backward(first, last, result);
+}
+
+template <class T>
+struct __copy_backward_dispatch<T*, T*>
+{
+ T* operator()(T* first, T* last, T* result) {
+ typedef typename __type_traits<T>::has_trivial_assignment_operator t;
+ return __copy_backward_t(first, last, result, t());
+ }
+};
+
+template <class T>
+struct __copy_backward_dispatch<const T*, T*>
+{
+ T* operator()(const T* first, const T* last, T* result) {
+ typedef typename __type_traits<T>::has_trivial_assignment_operator t;
+ return __copy_backward_t(first, last, result, t());
+ }
+};
+
+#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */
+
+template <class BidirectionalIterator1, class BidirectionalIterator2>
+inline BidirectionalIterator2 copy_backward(BidirectionalIterator1 first,
+ BidirectionalIterator1 last,
+ BidirectionalIterator2 result) {
+ return __copy_backward_dispatch<BidirectionalIterator1,
+ BidirectionalIterator2>()(first, last,
+ result);
+}
+
+template <class InputIterator, class Size, class OutputIterator>
+pair<InputIterator, OutputIterator> __copy_n(InputIterator first, Size count,
+ OutputIterator result,
+ input_iterator_tag) {
+ for ( ; count > 0; --count, ++first, ++result)
+ *result = *first;
+ return pair<InputIterator, OutputIterator>(first, result);
+}
+
+template <class RandomAccessIterator, class Size, class OutputIterator>
+inline pair<RandomAccessIterator, OutputIterator>
+__copy_n(RandomAccessIterator first, Size count,
+ OutputIterator result,
+ random_access_iterator_tag) {
+ RandomAccessIterator last = first + count;
+ return pair<RandomAccessIterator, OutputIterator>(last,
+ copy(first, last, result));
+}
+
+template <class InputIterator, class Size, class OutputIterator>
+inline pair<InputIterator, OutputIterator>
+copy_n(InputIterator first, Size count,
+ OutputIterator result) {
+ return __copy_n(first, count, result, iterator_category(first));
+}
+
+template <class ForwardIterator, class T>
+void fill(ForwardIterator first, ForwardIterator last, const T& value) {
+ for ( ; first != last; ++first)
+ *first = value;
+}
+
+template <class OutputIterator, class Size, class T>
+OutputIterator fill_n(OutputIterator first, Size n, const T& value) {
+ for ( ; n > 0; --n, ++first)
+ *first = value;
+ return first;
+}
+
+template <class InputIterator1, class InputIterator2>
+pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1,
+ InputIterator1 last1,
+ InputIterator2 first2) {
+ while (first1 != last1 && *first1 == *first2) {
+ ++first1;
+ ++first2;
+ }
+ return pair<InputIterator1, InputIterator2>(first1, first2);
+}
+
+template <class InputIterator1, class InputIterator2, class BinaryPredicate>
+pair<InputIterator1, InputIterator2> mismatch(InputIterator1 first1,
+ InputIterator1 last1,
+ InputIterator2 first2,
+ BinaryPredicate binary_pred) {
+ while (first1 != last1 && binary_pred(*first1, *first2)) {
+ ++first1;
+ ++first2;
+ }
+ return pair<InputIterator1, InputIterator2>(first1, first2);
+}
+
+template <class InputIterator1, class InputIterator2>
+inline bool equal(InputIterator1 first1, InputIterator1 last1,
+ InputIterator2 first2) {
+ for ( ; first1 != last1; ++first1, ++first2)
+ if (*first1 != *first2)
+ return false;
+ return true;
+}
+
+template <class InputIterator1, class InputIterator2, class BinaryPredicate>
+inline bool equal(InputIterator1 first1, InputIterator1 last1,
+ InputIterator2 first2, BinaryPredicate binary_pred) {
+ for ( ; first1 != last1; ++first1, ++first2)
+ if (!binary_pred(*first1, *first2))
+ return false;
+ return true;
+}
+
+template <class InputIterator1, class InputIterator2>
+bool lexicographical_compare(InputIterator1 first1, InputIterator1 last1,
+ InputIterator2 first2, InputIterator2 last2) {
+ for ( ; first1 != last1 && first2 != last2; ++first1, ++first2) {
+ if (*first1 < *first2)
+ return true;
+ if (*first2 < *first1)
+ return false;
+ }
+ return first1 == last1 && first2 != last2;
+}
+
+template <class InputIterator1, class InputIterator2, class Compare>
+bool lexicographical_compare(InputIterator1 first1, InputIterator1 last1,
+ InputIterator2 first2, InputIterator2 last2,
+ Compare comp) {
+ for ( ; first1 != last1 && first2 != last2; ++first1, ++first2) {
+ if (comp(*first1, *first2))
+ return true;
+ if (comp(*first2, *first1))
+ return false;
+ }
+ return first1 == last1 && first2 != last2;
+}
+
+inline bool
+lexicographical_compare(const unsigned char* first1,
+ const unsigned char* last1,
+ const unsigned char* first2,
+ const unsigned char* last2)
+{
+ const size_t len1 = last1 - first1;
+ const size_t len2 = last2 - first2;
+ const int result = memcmp(first1, first2, min(len1, len2));
+ return result != 0 ? result < 0 : len1 < len2;
+}
+
+inline bool lexicographical_compare(const char* first1, const char* last1,
+ const char* first2, const char* last2)
+{
+#if CHAR_MAX == SCHAR_MAX
+ return lexicographical_compare((const signed char*) first1,
+ (const signed char*) last1,
+ (const signed char*) first2,
+ (const signed char*) last2);
+#else
+ return lexicographical_compare((const unsigned char*) first1,
+ (const unsigned char*) last1,
+ (const unsigned char*) first2,
+ (const unsigned char*) last2);
+#endif
+}
+
+template <class InputIterator1, class InputIterator2>
+int lexicographical_compare_3way(InputIterator1 first1, InputIterator1 last1,
+ InputIterator2 first2, InputIterator2 last2)
+{
+ while (first1 != last1 && first2 != last2) {
+ if (*first1 < *first2) return -1;
+ if (*first2 < *first1) return 1;
+ ++first1; ++first2;
+ }
+ if (first2 == last2) {
+ return !(first1 == last1);
+ } else {
+ return -1;
+ }
+}
+
+inline int
+lexicographical_compare_3way(const unsigned char* first1,
+ const unsigned char* last1,
+ const unsigned char* first2,
+ const unsigned char* last2)
+{
+ const ptrdiff_t len1 = last1 - first1;
+ const ptrdiff_t len2 = last2 - first2;
+ const int result = memcmp(first1, first2, min(len1, len2));
+ return result != 0 ? result : (len1 == len2 ? 0 : (len1 < len2 ? -1 : 1));
+}
+
+inline int lexicographical_compare_3way(const char* first1, const char* last1,
+ const char* first2, const char* last2)
+{
+#if CHAR_MAX == SCHAR_MAX
+ return lexicographical_compare_3way(
+ (const signed char*) first1,
+ (const signed char*) last1,
+ (const signed char*) first2,
+ (const signed char*) last2);
+#else
+ return lexicographical_compare_3way((const unsigned char*) first1,
+ (const unsigned char*) last1,
+ (const unsigned char*) first2,
+ (const unsigned char*) last2);
+#endif
+}
+
+__STL_END_NAMESPACE
+
+#endif /* __SGI_STL_INTERNAL_ALGOBASE_H */
+
+// Local Variables:
+// mode:C++
+// End: