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rnd.cpp
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1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2 /*
3  * Main authors:
4  * Christian Schulte <schulte@gecode.org>
5  * Mikael Lagerkvist <lagerkvist@gecode.org>
6  *
7  * Copyright:
8  * Christian Schulte, 2008
9  * Mikael Lagerkvist, 2008
10  *
11  * Last modified:
12  * $Date: 2012-09-07 11:29:57 +0200 (Fri, 07 Sep 2012) $ by $Author: schulte $
13  * $Revision: 13061 $
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39 
40 #include <gecode/kernel.hh>
41 
42 namespace Gecode {
43 
44  SharedHandle::Object*
45  Rnd::IMP::copy(void) const {
46  return new IMP(rg.seed());
47  }
48 
49  Rnd::Rnd(unsigned int s) {
50  object(new IMP(s));
51  }
52  void
53  Rnd::seed(unsigned int s) {
54  if (object() == NULL) {
55  object(new IMP(s));
56  } else {
57  static_cast<IMP*>(object())->rg.seed(s);
58  }
59  }
60 
61 }
62 
63 // STATISTICS: kernel-other
unsigned int seed(void) const
Return current seed.
Definition: rnd.hpp:104
Rnd(void)
Default constructor that does not initialize the generator.
Definition: rnd.hpp:91
SharedHandle::Object * object(void) const
Access to the shared object.
Definition: core.hpp:2619
Gecode toplevel namespace