Generated on Thu Jan 20 2022 00:00:00 for Gecode by doxygen 1.9.1
ranges-add.hpp
Go to the documentation of this file.
1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  *
6  * Copyright:
7  * Christian Schulte, 2005
8  *
9  * This file is part of Gecode, the generic constraint
10  * development environment:
11  * http://www.gecode.org
12  *
13  * Permission is hereby granted, free of charge, to any person obtaining
14  * a copy of this software and associated documentation files (the
15  * "Software"), to deal in the Software without restriction, including
16  * without limitation the rights to use, copy, modify, merge, publish,
17  * distribute, sublicense, and/or sell copies of the Software, and to
18  * permit persons to whom the Software is furnished to do so, subject to
19  * the following conditions:
20  *
21  * The above copyright notice and this permission notice shall be
22  * included in all copies or substantial portions of the Software.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
28  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
29  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
30  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31  *
32  */
33 
34 namespace Gecode { namespace Iter { namespace Ranges {
35 
41  template<class I>
42  class AddRange : public MinMax {
43  protected:
45  I i;
47  int r_min;
49  int r_max;
50  public:
52 
53  AddRange(void);
56  AddRange(I& i, int min, int max);
58  void init(I& i, int min, int max);
60 
62 
63  void operator ++(void);
66  };
67 
68 
74  template<class I>
75  class SubRange : public AddRange<I> {
76  public:
78 
79  SubRange(void);
82  SubRange(I& i, int min, int max);
84  void init(I& i, int min, int max);
86  };
87 
88  template<class I>
91 
92  template<class I>
93  forceinline void
95  if (i()) {
96  mi = r_min + i.min();
97  ma = r_max + i.max();
98  ++i;
99  while (i() && (ma+1 >= r_min+i.min())) {
100  ma = r_max + i.max(); ++i;
101  }
102  } else {
103  finish();
104  }
105  }
106 
107  template<class I>
109  AddRange<I>::AddRange(I& i0, int r_min0, int r_max0)
110  : i(i0), r_min(r_min0), r_max(r_max0) {
111  operator ++();
112  }
113 
114  template<class I>
115  forceinline void
116  AddRange<I>::init(I& i0, int r_min0, int r_max0) {
117  i = i0; r_min = r_min0; r_max = r_max0;
118  operator ++();
119  }
120 
121 
122  template<class I>
125 
126  template<class I>
128  SubRange<I>::SubRange(I& i, int r_min, int r_max)
129  : AddRange<I>(i,-r_max,-r_min) {}
130 
131  template<class I>
132  forceinline void
133  SubRange<I>::init(I& i, int r_min, int r_max) {
134  AddRange<I>::init(i,-r_max,-r_min);
135  }
136 
137 }}}
138 
139 // STATISTICS: iter-any
140 
Range iterator for adding a single range to a range iterator.
Definition: ranges-add.hpp:42
I i
Iterator to which the range is to be added.
Definition: ranges-add.hpp:45
int r_max
Maximum of range to be added.
Definition: ranges-add.hpp:49
AddRange(void)
Default constructor.
Definition: ranges-add.hpp:90
int r_min
Minimum of range to be added.
Definition: ranges-add.hpp:47
void operator++(void)
Move iterator to next range (if possible)
Definition: ranges-add.hpp:94
void init(I &i, int min, int max)
Initialize with ranges i and range min to max.
Definition: ranges-add.hpp:116
Base for range iterators with explicit min and max.
int min(void) const
Return smallest value of range.
int max(void) const
Return largest value of range.
Range iterator for subtracting a single range from a range iterator.
Definition: ranges-add.hpp:75
SubRange(void)
Default constructor.
Definition: ranges-add.hpp:124
void init(I &i, int min, int max)
Initialize with ranges i and range min to max.
Definition: ranges-add.hpp:133
Gecode::IntArgs i({1, 2, 3, 4})
#define forceinline
Definition: config.hpp:194