/*

  *

  * Copyright (c) 1994

  * Hewlett-Packard Company

  *

  * Copyright (c) 1996,1997

  * Silicon Graphics Computer Systems, Inc.

  *

  * 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.

  *

  */

 /* NOTE: This is an internal header file, included by other STL headers.

  *   You should not attempt to use it directly.

  */

 #ifndef _STLP_INTERNAL_NUMERIC_H

 #define _STLP_INTERNAL_NUMERIC_H

 #ifndef _STLP_INTERNAL_FUNCTION_BASE_H

 # include <stl/_function_base.h>

 #endif

 #ifndef _STLP_INTERNAL_ITERATOR_BASE_H

 #  include <stl/_iterator_base.h>

 #endif

 _STLP_BEGIN_NAMESPACE

 template <class _InputIterator, class _Tp>

 _STLP_INLINE_LOOP

 _Tp accumulate(_InputIterator __first, _InputIterator __last, _Tp _Init) {

   _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last))

   for ( ; __first != __last; ++__first)

     _Init = _Init + *__first;

   return _Init;

 }

 template <class _InputIterator, class _Tp, class _BinaryOperation>

 _STLP_INLINE_LOOP

 _Tp accumulate(_InputIterator __first, _InputIterator __last, _Tp _Init,

                _BinaryOperation __binary_op) {

   _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last))

   for ( ; __first != __last; ++__first)

     _Init = __binary_op(_Init, *__first);

   return _Init;

 }

 template <class _InputIterator1, class _InputIterator2, class _Tp>

 _STLP_INLINE_LOOP

 _Tp inner_product(_InputIterator1 __first1, _InputIterator1 __last1,

                   _InputIterator2 __first2, _Tp _Init) {

   _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1))

   for ( ; __first1 != __last1; ++__first1, ++__first2)

     _Init = _Init + (*__first1 * *__first2);

   return _Init;

 }

 template <class _InputIterator1, class _InputIterator2, class _Tp,

           class _BinaryOperation1, class _BinaryOperation2>

 _STLP_INLINE_LOOP

 _Tp inner_product(_InputIterator1 __first1, _InputIterator1 __last1,

                   _InputIterator2 __first2, _Tp _Init,

                   _BinaryOperation1 __binary_op1,

                   _BinaryOperation2 __binary_op2) {

   _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1))

   for ( ; __first1 != __last1; ++__first1, ++__first2)

     _Init = __binary_op1(_Init, __binary_op2(*__first1, *__first2));

   return _Init;

 }

 _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_MOVE_TO_STD_NAMESPACE

 template <class _InputIterator, class _OutputIterator>

 inline _OutputIterator

 partial_sum(_InputIterator __first, _InputIterator __last,

             _OutputIterator __result) {

   return _STLP_PRIV __partial_sum(__first, __last, __result, _STLP_VALUE_TYPE(__first, _InputIterator),

                                   _STLP_PRIV __plus(_STLP_VALUE_TYPE(__first, _InputIterator)));

 }

 template <class _InputIterator, class _OutputIterator, class _BinaryOperation>

 inline _OutputIterator

 partial_sum(_InputIterator __first, _InputIterator __last,

             _OutputIterator __result, _BinaryOperation __binary_op) {

   return _STLP_PRIV __partial_sum(__first, __last, __result, _STLP_VALUE_TYPE(__first, _InputIterator),

                                   __binary_op);

 }

 _STLP_MOVE_TO_PRIV_NAMESPACE

 template <class _InputIterator, class _OutputIterator, class _Tp,

           class _BinaryOperation>

 _OutputIterator

 __adjacent_difference(_InputIterator __first, _InputIterator __last,

                       _OutputIterator __result, _Tp*,

                       _BinaryOperation __binary_op);

 _STLP_MOVE_TO_STD_NAMESPACE

 template <class _InputIterator, class _OutputIterator>

 inline _OutputIterator

 adjacent_difference(_InputIterator __first,

                     _InputIterator __last, _OutputIterator __result) {

   return _STLP_PRIV __adjacent_difference(__first, __last, __result,

                                           _STLP_VALUE_TYPE(__first, _InputIterator),

                                           _STLP_PRIV __minus(_STLP_VALUE_TYPE(__first, _InputIterator)));

 }

 template <class _InputIterator, class _OutputIterator, class _BinaryOperation>

 _OutputIterator

 adjacent_difference(_InputIterator __first, _InputIterator __last,

                     _OutputIterator __result, _BinaryOperation __binary_op) {

   return _STLP_PRIV __adjacent_difference(__first, __last, __result,

                                           _STLP_VALUE_TYPE(__first, _InputIterator),

                                           __binary_op);

 }

 _STLP_MOVE_TO_PRIV_NAMESPACE

 template <class _Tp, class _Integer, class _MonoidOperation>

 _Tp __power(_Tp __x, _Integer __n, _MonoidOperation __opr);

 _STLP_MOVE_TO_STD_NAMESPACE

 #if !defined (_STLP_NO_EXTENSIONS)

 // Returns __x ** __n, where __n >= 0.  _Note that "multiplication"

 // is required to be associative, but not necessarily commutative.

 _STLP_MOVE_TO_PRIV_NAMESPACE

 template <class _Tp, class _Integer>

 inline _Tp __power(_Tp __x, _Integer __n) {

   return __power(__x, __n, multiplies<_Tp>());

 }

 _STLP_MOVE_TO_STD_NAMESPACE

 // Alias for the internal name __power.  Note that power is an extension,

 // not part of the C++ standard.

 template <class _Tp, class _Integer, class _MonoidOperation>

 inline _Tp power(_Tp __x, _Integer __n, _MonoidOperation __opr) {

   return _STLP_PRIV __power(__x, __n, __opr);

 }

 template <class _Tp, class _Integer>

 inline _Tp power(_Tp __x, _Integer __n) {

   return _STLP_PRIV __power(__x, __n, multiplies<_Tp>());

 }

 // iota is not part of the C++ standard.  It is an extension.

 template <class _ForwardIterator, class _Tp>

 _STLP_INLINE_LOOP

 void iota(_ForwardIterator __first, _ForwardIterator __last, _Tp __val) {

   _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last))

   while (__first != __last)

     *__first++ = __val++;

 }

 #endif

 _STLP_END_NAMESPACE

 #if !defined (_STLP_LINK_TIME_INSTANTIATION)

 #  include <stl/_numeric.c>

 #endif

 #endif /* _STLP_INTERNAL_NUMERIC_H */

 // Local Variables:

 // mode:C++

 // End: