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216 lines
6.8 KiB
216 lines
6.8 KiB
// -*- C++ -*-
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/***************************************************************************
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*
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* numeric - Declarations for the Standard Library algorithms
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*
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* $Id: numeric 172106 2011-11-02 17:04:12Z statham $
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*
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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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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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***************************************************************************
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*
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* Copyright (c) 1994-2001 Rogue Wave Software, Inc. All Rights Reserved.
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*
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* This computer software is owned by Rogue Wave Software, Inc. and is
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* protected by U.S. copyright laws and other laws and by international
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* treaties. This computer software is furnished by Rogue Wave Software,
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* Inc. pursuant to a written license agreement and may be used, copied,
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* transmitted, and stored only in accordance with the terms of such
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* license and with the inclusion of the above copyright notice. This
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* computer software or any other copies thereof may not be provided or
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* otherwise made available to any other person.
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*
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* U.S. Government Restricted Rights. This computer software is provided
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* with Restricted Rights. Use, duplication, or disclosure by the
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* Government is subject to restrictions as set forth in subparagraph (c)
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* (1) (ii) of The Rights in Technical Data and Computer Software clause
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* at DFARS 252.227-7013 or subparagraphs (c) (1) and (2) of the
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* Commercial Computer Software--Restricted Rights at 48 CFR 52.227-19,
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* as applicable. Manufacturer is Rogue Wave Software, Inc., 5500
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* Flatiron Parkway, Boulder, Colorado 80301 USA.
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*
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**************************************************************************/
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#ifndef _RWSTD_NUMERIC_INCLUDED
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#define _RWSTD_NUMERIC_INCLUDED
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#include <rw/_iterbase.h>
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#include <rw/_defs.h>
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#include _RWSTD_CSTDLIB
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_RWSTD_NAMESPACE_BEGIN (std)
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// 26.4.1 - Accumulate
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template <class _InputIter, class _TypeT>
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inline _TypeT accumulate (_InputIter __first, _InputIter __last, _TypeT __n)
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{
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for (; __first != __last; ++__first)
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__n = __n + *__first;
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return __n;
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}
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template <class _InputIter, class _TypeT, class _BinaryOperation>
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inline _TypeT accumulate (_InputIter __first, _InputIter __last,
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_TypeT __n, _BinaryOperation __oper)
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{
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for (; __first != __last; ++__first)
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__n = __oper (__n, *__first);
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return __n;
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}
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// 26.4.2 - Inner product
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template <class _InputIter1, class _InputIter2, class _TypeT>
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inline _TypeT inner_product (_InputIter1 __first1, _InputIter1 __last1,
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_InputIter2 __first2, _TypeT __n) {
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for (; __first1 != __last1; ++__first1, ++__first2)
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__n += *__first1 * *__first2;
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return __n;
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}
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template <class _InputIter1, class _InputIter2,
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class _TypeT, class _BinaryOperation1, class _BinaryOperation2>
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inline _TypeT
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inner_product (_InputIter1 __first1, _InputIter1 __last1,
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_InputIter2 __first2, _TypeT __n,
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_BinaryOperation1 __oper1, _BinaryOperation2 __oper2)
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{
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for (; __first1 != __last1; ++__first1, ++__first2)
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__n = __oper1 (__n, __oper2 (*__first1, *__first2));
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return __n;
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}
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template <class _InputIter, class _OutputIter, class _TypeT>
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inline _OutputIter
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__partial_sum (_InputIter __first, _InputIter __last, _OutputIter __res,
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_TypeT*)
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{
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_TypeT __value = *__first;
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while (++__first != __last) {
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__value = __value + *__first;
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*++__res = __value;
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}
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return ++__res;
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}
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// 26.4.3 - Partial sum
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template <class _InputIter, class _OutputIter>
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inline _OutputIter
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partial_sum (_InputIter __first, _InputIter __last, _OutputIter __res)
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{
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return __first == __last
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? __res : (*__res = *__first,
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__partial_sum (__first, __last, __res,
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_RWSTD_VALUE_TYPE (_InputIter)));
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}
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template <class _InputIter, class _OutputIter,
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class _TypeT, class _BinaryOperation>
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inline _OutputIter __partial_sum (_InputIter __first, _InputIter __last,
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_OutputIter __res, _TypeT*,
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_BinaryOperation __oper)
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{
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_TypeT __value = *__first;
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while (++__first != __last) {
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__value = __oper(__value, *__first);
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*++__res = __value;
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}
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return ++__res;
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}
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template <class _InputIter, class _OutputIter, class _BinaryOperation>
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inline _OutputIter partial_sum (_InputIter __first, _InputIter __last,
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_OutputIter __res, _BinaryOperation __oper)
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{
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return __first == __last ?
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__res : (*__res = *__first,
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__partial_sum (__first, __last, __res,
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_RWSTD_VALUE_TYPE (_InputIter),__oper));
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}
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template <class _InputIter, class _OutputIter, class _TypeT>
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inline _OutputIter
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__adjacent_difference (_InputIter __first, _InputIter __last, _OutputIter __res,
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_TypeT*)
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{
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_TypeT __value = *__first;
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while (++__first != __last) {
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_TypeT __tmp = *__first;
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*++__res = __tmp - __value;
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__value = __tmp;
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}
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return ++__res;
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}
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// 26.4.4 - Adjacent difference
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template <class _InputIter, class _OutputIter>
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inline _OutputIter
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adjacent_difference (_InputIter __first, _InputIter __last, _OutputIter __res)
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{
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return __first == __last
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? __res
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: (*__res = *__first,
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__adjacent_difference(__first, __last, __res,
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_RWSTD_VALUE_TYPE (_InputIter)));
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}
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template <class _InputIter, class _OutputIter,
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class _TypeT, class _BinaryOperation>
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inline _OutputIter
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__adjacent_difference (_InputIter __first, _InputIter __last,
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_OutputIter __res, _TypeT*, _BinaryOperation __oper)
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{
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_TypeT __value = *__first;
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while (++__first != __last) {
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_TypeT __tmp = *__first;
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*++__res = __oper(__tmp, __value);
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__value = __tmp;
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}
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return ++__res;
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}
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template <class _InputIter, class _OutputIter, class _BinaryOperation>
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inline _OutputIter
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adjacent_difference (_InputIter __first, _InputIter __last,
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_OutputIter __res, _BinaryOperation __oper)
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{
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return __first == __last
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? __res
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: (*__res = *__first,
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__adjacent_difference(__first, __last, __res,
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_RWSTD_VALUE_TYPE (_InputIter), __oper));
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}
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_RWSTD_NAMESPACE_END // std
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#endif // _RWSTD_NUMERIC_INCLUDED
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