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archive.hpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Guido Tack <tack@gecode.org>
5  *
6  * Copyright:
7  * Guido Tack, 2011
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
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18  * permit persons to whom the Software is furnished to do so, subject to
19  * the following conditions:
20  *
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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
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31  *
32  */
33 
34 namespace Gecode {
35 
42  class Archive {
43  private:
45  int _size;
47  int _n;
49  unsigned int* _a;
51  int _pos;
53  GECODE_KERNEL_EXPORT void resize(int n);
54  public:
56  Archive(void);
64  void put(unsigned int i);
66  int size(void) const;
68  unsigned int operator [](int i) const;
70  unsigned int get(void);
71  };
72 
76  Archive&
77  operator <<(Archive& e, unsigned int i);
81  Archive&
82  operator <<(Archive& e, int i);
86  Archive&
87  operator <<(Archive& e, unsigned short i);
91  Archive&
92  operator <<(Archive& e, short i);
96  Archive&
97  operator <<(Archive& e, unsigned char i);
101  Archive&
102  operator <<(Archive& e, char i);
106  Archive&
107  operator <<(Archive& e, bool i);
111  Archive&
112  operator <<(Archive& e, float d);
116  Archive&
117  operator <<(Archive& e, double d);
118 
122  Archive&
123  operator >>(Archive& e, unsigned int& i);
127  Archive&
128  operator >>(Archive& e, int& i);
132  Archive&
133  operator >>(Archive& e, unsigned short& i);
137  Archive&
138  operator >>(Archive& e, short& i);
142  Archive&
143  operator >>(Archive& e, unsigned char& i);
147  Archive&
148  operator >>(Archive& e, char& i);
152  Archive&
153  operator >>(Archive& e, bool& i);
157  Archive&
158  operator >>(Archive& e, float& d);
162  Archive&
163  operator >>(Archive& e, double& d);
164 
165  /*
166  * Implementation
167  *
168  */
169 
171  Archive::Archive(void) : _size(0), _n(0), _a(NULL), _pos(0) {}
172 
173  forceinline void
174  Archive::put(unsigned int i) {
175  if (_n==_size)
176  resize(_n+1);
177  _a[_n++] = i;
178  }
179 
180  forceinline int
181  Archive::size(void) const { return _n; }
182 
183  forceinline unsigned int
184  Archive::operator [](int i) const {
185  assert(i < _n);
186  return _a[i];
187  }
188 
189  forceinline unsigned int
190  Archive::get(void) {
191  assert(_pos < _n);
192  return _a[_pos++];
193  }
194 
196  operator <<(Archive& e, unsigned int i) {
197  e.put(i);
198  return e;
199  }
201  operator <<(Archive& e, int i) {
202  e.put(static_cast<unsigned int>(i));
203  return e;
204  }
206  operator <<(Archive& e, unsigned short i) {
207  e.put(i);
208  return e;
209  }
211  operator <<(Archive& e, short i) {
212  e.put(static_cast<unsigned int>(i));
213  return e;
214  }
216  operator <<(Archive& e, unsigned char i) {
217  e.put(i);
218  return e;
219  }
221  operator <<(Archive& e, char i) {
222  e.put(static_cast<unsigned int>(i));
223  return e;
224  }
226  operator <<(Archive& e, bool i) {
227  e.put(static_cast<unsigned int>(i));
228  return e;
229  }
231  operator <<(Archive& e, float d) {
232  for (size_t i=0; i<sizeof(float); i++)
233  e.put(static_cast<unsigned int>(reinterpret_cast<char*>(&d)[i]));
234  return e;
235  }
237  operator <<(Archive& e, double d) {
238  for (size_t i=0; i<sizeof(double); i++)
239  e.put(static_cast<unsigned int>(reinterpret_cast<char*>(&d)[i]));
240  return e;
241  }
242 
244  operator >>(Archive& e, unsigned int& i) {
245  i = e.get();
246  return e;
247  }
249  operator >>(Archive& e, int& i) {
250  i = static_cast<int>(e.get());
251  return e;
252  }
254  operator >>(Archive& e, unsigned short& i) {
255  i = static_cast<unsigned short>(e.get());
256  return e;
257  }
259  operator >>(Archive& e, short& i) {
260  i = static_cast<short>(e.get());
261  return e;
262  }
264  operator >>(Archive& e, unsigned char& i) {
265  i = static_cast<unsigned char>(e.get());
266  return e;
267  }
269  operator >>(Archive& e, char& i) {
270  i = static_cast<char>(e.get());
271  return e;
272  }
274  operator >>(Archive& e, bool& i) {
275  i = (e.get() != 0);
276  return e;
277  }
279  operator >>(Archive& e, float& d) {
280  char* cd = reinterpret_cast<char*>(&d);
281  for (size_t i=0; i<sizeof(float); i++)
282  cd[i] = static_cast<char>(e.get());
283  return e;
284  }
286  operator >>(Archive& e, double& d) {
287  char* cd = reinterpret_cast<char*>(&d);
288  for (size_t i=0; i<sizeof(double); i++)
289  cd[i] = static_cast<char>(e.get());
290  return e;
291  }
292 
293 }
294 
295 // STATISTICS: kernel-branch
int n
Number of negative literals for node type.
Definition: bool-expr.cpp:234
Archive representation
Definition: archive.hpp:42
void put(unsigned int i)
Add i to the contents.
Definition: archive.hpp:174
int size(void) const
Return size.
Definition: archive.hpp:181
Archive(void)
Construct empty representation.
Definition: archive.hpp:171
~Archive(void)
Destructor.
Definition: archive.cpp:60
unsigned int operator[](int i) const
Return array element i.
Definition: archive.hpp:184
Archive & operator=(const Archive &e)
Assignment operator.
Definition: archive.cpp:51
unsigned int get(void)
Return next element to read.
Definition: archive.hpp:190
#define GECODE_KERNEL_EXPORT
Definition: kernel.hh:70
Gecode::IntArgs i({1, 2, 3, 4})
Gecode::IntSet d(v, 7)
Single _a(2, 3)
#define forceinline
Definition: config.hpp:194