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extern/STLport/5.2.1/stlport/stl/_numeric.c

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+/*
+ *
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Copyright (c) 1996,1997
+ * 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.
+ *
+ */
+#ifndef _STLP_NUMERIC_C
+#define _STLP_NUMERIC_C
+
+#ifndef _STLP_INTERNAL_NUMERIC_H
+# include <stl/_numeric.h>
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+_STLP_MOVE_TO_PRIV_NAMESPACE
+
+template <class _InputIterator, class _OutputIterator, class _Tp,
+          class _BinaryOperation>
+_OutputIterator
+__partial_sum(_InputIterator __first, _InputIterator __last,
+              _OutputIterator __result, _Tp*, _BinaryOperation __binary_op) {
+  _STLP_DEBUG_CHECK(__check_range(__first, __last))
+  if (__first == __last) return __result;
+  *__result = *__first;
+
+  _Tp __val = *__first;
+  while (++__first != __last) {
+    __val = __binary_op(__val, *__first);
+    *++__result = __val;
+  }
+  return ++__result;
+}
+
+template <class _InputIterator, class _OutputIterator, class _Tp,
+          class _BinaryOperation>
+_OutputIterator
+__adjacent_difference(_InputIterator __first, _InputIterator __last,
+                      _OutputIterator __result, _Tp*,
+                      _BinaryOperation __binary_op) {
+  _STLP_DEBUG_CHECK(__check_range(__first, __last))
+  if (__first == __last) return __result;
+  *__result = *__first;
+  _Tp __val = *__first;
+  while (++__first != __last) {
+    _Tp __tmp = *__first;
+    *++__result = __binary_op(__tmp, __val);
+    __val = __tmp;
+  }
+  return ++__result;
+}
+
+
+template <class _Tp, class _Integer, class _MonoidOperation>
+_Tp __power(_Tp __x, _Integer __n, _MonoidOperation __opr) {
+  _STLP_MPWFIX_TRY
+  if (__n == 0)
+    return __identity_element(__opr);
+  else {
+    while ((__n & 1) == 0) {
+      __n >>= 1;
+      __x = __opr(__x, __x);
+    }
+    _Tp __result = __x;
+  _STLP_MPWFIX_TRY
+    __n >>= 1;
+    while (__n != 0) {
+      __x = __opr(__x, __x);
+      if ((__n & 1) != 0)
+        __result = __opr(__result, __x);
+      __n >>= 1;
+    }
+    return __result;
+  _STLP_MPWFIX_CATCH
+  }
+  _STLP_MPWFIX_CATCH_ACTION(__x = _Tp())
+}
+
+_STLP_MOVE_TO_STD_NAMESPACE
+
+_STLP_END_NAMESPACE
+
+#endif /*  _STLP_NUMERIC_C */
+
+// Local Variables:
+// mode:C++
+// End: