#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)
{
__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)
{
__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)
{
__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)
{
__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;
__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;
__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;
__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;
__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;
}
}
#endif