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comb-ptr-flag.hpp
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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, 2003
8  *
9  * Last modified:
10  * $Date: 2011-08-17 21:42:11 +0200 (Wed, 17 Aug 2011) $ by $Author: schulte $
11  * $Revision: 12306 $
12  *
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37 
38 namespace Gecode { namespace Int { namespace ViewValGraph {
39 
40  template<class T>
43  : cpf(reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2)) {}
44 
45  template<class T>
46  forceinline T*
47  CombPtrFlag<T>::ptr(T* p) const {
48  return reinterpret_cast<T*>((cpf&~1) ^ reinterpret_cast<ptrdiff_t>(p));
49  }
50 
51  template<class T>
52  forceinline int
53  CombPtrFlag<T>::is_set(void) const {
54  return static_cast<int>(cpf&1);
55  }
56 
57  template<class T>
58  forceinline void
60  cpf |= 1;
61  }
62 
63  template<class T>
64  forceinline void
66  cpf &= ~1;
67  }
68 
69  template<class T>
70  forceinline void
72  cpf = reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2);
73  }
74 
75 }}}
76 
77 // STATISTICS: int-prop
78 
int is_set(void) const
Check whether flag is set.
int p
Number of positive literals for node type.
Definition: bool-expr.cpp:236
Gecode::IntArgs p2(4, 4, 3, 3, 5)
#define forceinline
Definition: config.hpp:132
T * ptr(T *p) const
Return the other pointer when p is given.
Gecode toplevel namespace
void init(T *p1, T *p2)
Initialize with pointer p1 and p2.
Gecode::IntArgs p1(4, 2, 2, 2, 2)
CombPtrFlag(T *p1, T *p2)
Initialize with pointer p1 and p2.