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when.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  *
6  * Copyright:
7  * Christian Schulte, 2009
8  *
9  * Last modified:
10  * $Date: 2010-03-04 03:32:21 +1100 (Thu, 04 Mar 2010) $ by $Author: schulte $
11  * $Revision: 10364 $
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37 
38 #include <gecode/int/exec.hh>
39 
40 namespace Gecode { namespace Int { namespace Exec {
41 
43  When::post(Home home, BoolView x, void (*t)(Space&), void (*e)(Space&)) {
44  if (x.zero() && (e != NULL)) {
45  e(home);
46  return home.failed() ? ES_FAILED : ES_OK;
47  } else if (x.zero() && (t != NULL)) {
48  t(home);
49  return home.failed() ? ES_FAILED : ES_OK;
50  } else {
51  (void) new (home) When(home,x,t,e);
52  return ES_OK;
53  }
54  }
55 
56  Actor*
57  When::copy(Space& home, bool share) {
58  return new (home) When(home,share,*this);
59  }
60 
63  if (x0.zero() && (e != NULL)) {
64  e(home);
65  } else if (t != NULL) {
66  assert(x0.one());
67  t(home);
68  }
69  if (home.failed()) return ES_FAILED;
70  return home.ES_SUBSUMED(*this);
71  }
72 
73 
74 }}}
75 
76 // STATISTICS: int-prop
77