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// Numeric functions implementation -*- C++ -*-
// Copyright (C) 2001 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
/*
*
* 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) 1996,1997
* 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.
*/
/** @file stl_numeric.h
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
#ifndef _CPP_BITS_STL_NUMERIC_H
#define _CPP_BITS_STL_NUMERIC_H 1
namespace std
{
template<typename _InputIterator, typename _Tp>
_Tp
accumulate(_InputIterator __first, _InputIterator __last, _Tp __init)
{
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator>)
for ( ; __first != __last; ++__first)
__init = __init + *__first;
return __init;
}
template<typename _InputIterator, typename _Tp, typename _BinaryOperation>
_Tp
accumulate(_InputIterator __first, _InputIterator __last, _Tp __init,
_BinaryOperation __binary_op)
{
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator>)
for ( ; __first != __last; ++__first)
__init = __binary_op(__init, *__first);
return __init;
}
template<typename _InputIterator1, typename _InputIterator2, typename _Tp>
_Tp
inner_product(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _Tp __init)
{
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator2>)
for ( ; __first1 != __last1; ++__first1, ++__first2)
__init = __init + (*__first1 * *__first2);
return __init;
}
template<typename _InputIterator1, typename _InputIterator2, typename _Tp,
typename _BinaryOperation1, typename _BinaryOperation2>
_Tp
inner_product(_InputIterator1 __first1, _InputIterator1 __last1,
_InputIterator2 __first2, _Tp __init,
_BinaryOperation1 __binary_op1,
_BinaryOperation2 __binary_op2)
{
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator1>)
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator2>)
for ( ; __first1 != __last1; ++__first1, ++__first2)
__init = __binary_op1(__init, __binary_op2(*__first1, *__first2));
return __init;
}
template<typename _InputIterator, typename _OutputIterator>
_OutputIterator
partial_sum(_InputIterator __first, _InputIterator __last,
_OutputIterator __result)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcpp_function_requires(_OutputIteratorConcept<_OutputIterator, _ValueType>)
if (__first == __last) return __result;
*__result = *__first;
_ValueType __value = *__first;
while (++__first != __last) {
__value = __value + *__first;
*++__result = __value;
}
return ++__result;
}
template<typename _InputIterator, typename _OutputIterator, typename _BinaryOperation>
_OutputIterator
partial_sum(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOperation __binary_op)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcpp_function_requires(_OutputIteratorConcept<_OutputIterator, _ValueType>)
if (__first == __last) return __result;
*__result = *__first;
_ValueType __value = *__first;
while (++__first != __last) {
__value = __binary_op(__value, *__first);
*++__result = __value;
}
return ++__result;
}
template<typename _InputIterator, typename _OutputIterator>
_OutputIterator
adjacent_difference(_InputIterator __first,
_InputIterator __last, _OutputIterator __result)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcpp_function_requires(_OutputIteratorConcept<_OutputIterator, _ValueType>)
if (__first == __last) return __result;
*__result = *__first;
_ValueType __value = *__first;
while (++__first != __last) {
_ValueType __tmp = *__first;
*++__result = __tmp - __value;
__value = __tmp;
}
return ++__result;
}
template<typename _InputIterator, typename _OutputIterator, typename _BinaryOperation>
_OutputIterator
adjacent_difference(_InputIterator __first, _InputIterator __last,
_OutputIterator __result, _BinaryOperation __binary_op)
{
typedef typename iterator_traits<_InputIterator>::value_type _ValueType;
// concept requirements
__glibcpp_function_requires(_InputIteratorConcept<_InputIterator>)
__glibcpp_function_requires(_OutputIteratorConcept<_OutputIterator, _ValueType>)
if (__first == __last) return __result;
*__result = *__first;
_ValueType __value = *__first;
while (++__first != __last) {
_ValueType __tmp = *__first;
*++__result = __binary_op(__tmp, __value);
__value = __tmp;
}
return ++__result;
}
} // namespace std
#endif /* _CPP_BITS_STL_NUMERIC_H */
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// mode:C++
// End:
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