mirror of
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107 lines
2.6 KiB
C
107 lines
2.6 KiB
C
/*
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*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Copyright (c) 1997
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* Moscow Center for SPARC Technology
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*
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* Copyright (c) 1999
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* Boris Fomitchev
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*
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* This material is provided "as is", with absolutely no warranty expressed
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* or implied. Any use is at your own risk.
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*
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* Permission to use or copy this software for any purpose is hereby granted
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* without fee, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is granted,
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* provided the above notices are retained, and a notice that the code was
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* modified is included with the above copyright notice.
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*
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*/
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#ifndef _STLP_NUMERIC_C
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#define _STLP_NUMERIC_C
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#ifndef _STLP_INTERNAL_NUMERIC_H
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# include <stl/_numeric.h>
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#endif
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_STLP_BEGIN_NAMESPACE
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_STLP_MOVE_TO_PRIV_NAMESPACE
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template <class _InputIterator, class _OutputIterator, class _Tp,
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class _BinaryOperation>
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_OutputIterator
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__partial_sum(_InputIterator __first, _InputIterator __last,
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_OutputIterator __result, _Tp*, _BinaryOperation __binary_op) {
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_STLP_DEBUG_CHECK(__check_range(__first, __last))
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if (__first == __last) return __result;
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*__result = *__first;
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_Tp __val = *__first;
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while (++__first != __last) {
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__val = __binary_op(__val, *__first);
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*++__result = __val;
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}
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return ++__result;
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}
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template <class _InputIterator, class _OutputIterator, class _Tp,
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class _BinaryOperation>
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_OutputIterator
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__adjacent_difference(_InputIterator __first, _InputIterator __last,
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_OutputIterator __result, _Tp*,
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_BinaryOperation __binary_op) {
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_STLP_DEBUG_CHECK(__check_range(__first, __last))
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if (__first == __last) return __result;
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*__result = *__first;
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_Tp __val = *__first;
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while (++__first != __last) {
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_Tp __tmp = *__first;
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*++__result = __binary_op(__tmp, __val);
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__val = __tmp;
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}
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return ++__result;
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}
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template <class _Tp, class _Integer, class _MonoidOperation>
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_Tp __power(_Tp __x, _Integer __n, _MonoidOperation __opr) {
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_STLP_MPWFIX_TRY
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if (__n == 0)
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return __identity_element(__opr);
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else {
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while ((__n & 1) == 0) {
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__n >>= 1;
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__x = __opr(__x, __x);
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}
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_Tp __result = __x;
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_STLP_MPWFIX_TRY
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__n >>= 1;
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while (__n != 0) {
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__x = __opr(__x, __x);
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if ((__n & 1) != 0)
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__result = __opr(__result, __x);
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__n >>= 1;
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}
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return __result;
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_STLP_MPWFIX_CATCH
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}
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_STLP_MPWFIX_CATCH_ACTION(__x = _Tp())
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}
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_STLP_MOVE_TO_STD_NAMESPACE
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_STLP_END_NAMESPACE
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#endif /* _STLP_NUMERIC_C */
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// Local Variables:
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// mode:C++
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// End:
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