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_numeric.h
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1 /*
2  *
3  * Copyright (c) 1994
4  * Hewlett-Packard Company
5  *
6  * Copyright (c) 1996,1997
7  * Silicon Graphics Computer Systems, Inc.
8  *
9  * Copyright (c) 1999
10  * Boris Fomitchev
11  *
12  * This material is provided "as is", with absolutely no warranty expressed
13  * or implied. Any use is at your own risk.
14  *
15  * Permission to use or copy this software for any purpose is hereby granted
16  * without fee, provided the above notices are retained on all copies.
17  * Permission to modify the code and to distribute modified code is granted,
18  * provided the above notices are retained, and a notice that the code was
19  * modified is included with the above copyright notice.
20  *
21  */
22 
23 /* NOTE: This is an internal header file, included by other STL headers.
24  * You should not attempt to use it directly.
25  */
26 
27 #ifndef _STLP_INTERNAL_NUMERIC_H
28 #define _STLP_INTERNAL_NUMERIC_H
29 
30 #ifndef _STLP_INTERNAL_FUNCTION_BASE_H
31 # include <stl/_function_base.h>
32 #endif
33 
34 #ifndef _STLP_INTERNAL_ITERATOR_BASE_H
35 # include <stl/_iterator_base.h>
36 #endif
37 
39 
40 template <class _InputIterator, class _Tp>
42 _Tp accumulate(_InputIterator __first, _InputIterator __last, _Tp _Init) {
43  _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last))
44  for ( ; __first != __last; ++__first)
45  _Init = _Init + *__first;
46  return _Init;
47 }
48 
49 template <class _InputIterator, class _Tp, class _BinaryOperation>
51 _Tp accumulate(_InputIterator __first, _InputIterator __last, _Tp _Init,
52  _BinaryOperation __binary_op) {
53  _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last))
54  for ( ; __first != __last; ++__first)
55  _Init = __binary_op(_Init, *__first);
56  return _Init;
57 }
58 
59 template <class _InputIterator1, class _InputIterator2, class _Tp>
61 _Tp inner_product(_InputIterator1 __first1, _InputIterator1 __last1,
62  _InputIterator2 __first2, _Tp _Init) {
63  _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1))
64  for ( ; __first1 != __last1; ++__first1, ++__first2)
65  _Init = _Init + (*__first1 * *__first2);
66  return _Init;
67 }
68 
69 template <class _InputIterator1, class _InputIterator2, class _Tp,
70  class _BinaryOperation1, class _BinaryOperation2>
72 _Tp inner_product(_InputIterator1 __first1, _InputIterator1 __last1,
73  _InputIterator2 __first2, _Tp _Init,
74  _BinaryOperation1 __binary_op1,
75  _BinaryOperation2 __binary_op2) {
76  _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first1, __last1))
77  for ( ; __first1 != __last1; ++__first1, ++__first2)
78  _Init = __binary_op1(_Init, __binary_op2(*__first1, *__first2));
79  return _Init;
80 }
81 
83 
84 template <class _InputIterator, class _OutputIterator, class _Tp,
85  class _BinaryOperation>
86 _OutputIterator
87 __partial_sum(_InputIterator __first, _InputIterator __last,
88  _OutputIterator __result, _Tp*, _BinaryOperation __binary_op);
89 
91 
92 template <class _InputIterator, class _OutputIterator>
93 inline _OutputIterator
94 partial_sum(_InputIterator __first, _InputIterator __last,
95  _OutputIterator __result) {
96  return _STLP_PRIV __partial_sum(__first, __last, __result, _STLP_VALUE_TYPE(__first, _InputIterator),
97  _STLP_PRIV __plus(_STLP_VALUE_TYPE(__first, _InputIterator)));
98 }
99 
100 template <class _InputIterator, class _OutputIterator, class _BinaryOperation>
101 inline _OutputIterator
102 partial_sum(_InputIterator __first, _InputIterator __last,
103  _OutputIterator __result, _BinaryOperation __binary_op) {
104  return _STLP_PRIV __partial_sum(__first, __last, __result, _STLP_VALUE_TYPE(__first, _InputIterator),
105  __binary_op);
106 }
107 
109 
110 template <class _InputIterator, class _OutputIterator, class _Tp,
111  class _BinaryOperation>
112 _OutputIterator
113 __adjacent_difference(_InputIterator __first, _InputIterator __last,
114  _OutputIterator __result, _Tp*,
115  _BinaryOperation __binary_op);
116 
118 
119 template <class _InputIterator, class _OutputIterator>
120 inline _OutputIterator
121 adjacent_difference(_InputIterator __first,
122  _InputIterator __last, _OutputIterator __result) {
123  return _STLP_PRIV __adjacent_difference(__first, __last, __result,
124  _STLP_VALUE_TYPE(__first, _InputIterator),
125  _STLP_PRIV __minus(_STLP_VALUE_TYPE(__first, _InputIterator)));
126 }
127 
128 template <class _InputIterator, class _OutputIterator, class _BinaryOperation>
129 _OutputIterator
130 adjacent_difference(_InputIterator __first, _InputIterator __last,
131  _OutputIterator __result, _BinaryOperation __binary_op) {
132  return _STLP_PRIV __adjacent_difference(__first, __last, __result,
133  _STLP_VALUE_TYPE(__first, _InputIterator),
134  __binary_op);
135 }
136 
138 
139 template <class _Tp, class _Integer, class _MonoidOperation>
140 _Tp __power(_Tp __x, _Integer __n, _MonoidOperation __opr);
141 
143 
144 #if !defined (_STLP_NO_EXTENSIONS)
145 
146 // Returns __x ** __n, where __n >= 0. _Note that "multiplication"
147 // is required to be associative, but not necessarily commutative.
148 
150 
151 template <class _Tp, class _Integer>
152 inline _Tp __power(_Tp __x, _Integer __n) {
153  return __power(__x, __n, multiplies<_Tp>());
154 }
155 
157 
158 // Alias for the internal name __power. Note that power is an extension,
159 // not part of the C++ standard.
160 template <class _Tp, class _Integer, class _MonoidOperation>
161 inline _Tp power(_Tp __x, _Integer __n, _MonoidOperation __opr) {
162  return _STLP_PRIV __power(__x, __n, __opr);
163 }
164 
165 template <class _Tp, class _Integer>
166 inline _Tp power(_Tp __x, _Integer __n) {
167  return _STLP_PRIV __power(__x, __n, multiplies<_Tp>());
168 }
169 
170 // iota is not part of the C++ standard. It is an extension.
171 
172 template <class _ForwardIterator, class _Tp>
174 void iota(_ForwardIterator __first, _ForwardIterator __last, _Tp __val) {
175  _STLP_DEBUG_CHECK(_STLP_PRIV __check_range(__first, __last))
176  while (__first != __last)
177  *__first++ = __val++;
178 }
179 #endif
180 
182 
183 #if !defined (_STLP_LINK_TIME_INSTANTIATION)
184 # include <stl/_numeric.c>
185 #endif
186 
187 #endif /* _STLP_INTERNAL_NUMERIC_H */
188 
189 // Local Variables:
190 // mode:C++
191 // End:
_STLP_MOVE_TO_STD_NAMESPACE _Tp power(_Tp __x, _Integer __n, _MonoidOperation __opr)
Definition: _numeric.h:161
return __n
Definition: _algo.h:75
_STLP_MOVE_TO_PRIV_NAMESPACE _Tp __power(_Tp __x, _Integer __n, _MonoidOperation __opr)
Definition: _numeric.c:74
_STLP_INLINE_LOOP void iota(_ForwardIterator __first, _ForwardIterator __last, _Tp __val)
Definition: _numeric.h:174
_STLP_MOVE_TO_PRIV_NAMESPACE _OutputIterator __adjacent_difference(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Tp *, _BinaryOperation __binary_op)
Definition: _numeric.c:57
minus< _Tp > __minus(_Tp *)
#define _STLP_MOVE_TO_PRIV_NAMESPACE
Definition: features.h:524
_STLP_MOVE_TO_STD_NAMESPACE _OutputIterator partial_sum(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
Definition: _numeric.h:94
_STLP_MOVE_TO_PRIV_NAMESPACE plus< _Tp > __plus(_Tp *)
_STLP_INLINE_LOOP _InputIter __last
Definition: _algo.h:68
_STLP_INLINE_LOOP _Tp inner_product(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _Tp _Init)
Definition: _numeric.h:61
#define _STLP_MOVE_TO_STD_NAMESPACE
Definition: features.h:525
_STLP_BEGIN_NAMESPACE _STLP_INLINE_LOOP _Tp accumulate(_InputIterator __first, _InputIterator __last, _Tp _Init)
Definition: _numeric.h:42
_STLP_MOVE_TO_PRIV_NAMESPACE _OutputIterator __partial_sum(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Tp *, _BinaryOperation __binary_op)
Definition: _numeric.c:40
_STLP_INLINE_LOOP _InputIter const _Tp & __val
Definition: _algobase.h:656
#define _STLP_INLINE_LOOP
Definition: features.h:648
#define _STLP_VALUE_TYPE(_It, _Tp)
_STLP_MOVE_TO_STD_NAMESPACE _OutputIterator adjacent_difference(_InputIterator __first, _InputIterator __last, _OutputIterator __result)
Definition: _numeric.h:121
#define _STLP_PRIV
Definition: _dm.h:70
#define _STLP_DEBUG_CHECK(expr)
Definition: _debug.h:440
#define _STLP_END_NAMESPACE
Definition: features.h:503
#define _STLP_BEGIN_NAMESPACE
Definition: features.h:501