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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 *
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33
34namespace Gecode { namespace Int { namespace ViewValGraph {
35
36 template<class T>
39 : cpf(reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2)) {}
40
41 template<class T>
43 CombPtrFlag<T>::ptr(T* p) const {
44 return reinterpret_cast<T*>((cpf&~1) ^ reinterpret_cast<ptrdiff_t>(p));
45 }
46
47 template<class T>
48 forceinline int
50 return static_cast<int>(cpf&1);
51 }
52
53 template<class T>
54 forceinline void
56 cpf |= 1;
57 }
58
59 template<class T>
62 cpf &= ~1;
63 }
65 template<class T>
67 CombPtrFlag<T>::init(T* p1, T* p2) {
68 cpf = reinterpret_cast<ptrdiff_t>(p1) ^ reinterpret_cast<ptrdiff_t>(p2);
69 }
71}}}
72
73// STATISTICS: int-prop
74
int is_set(void) const
Check whether flag is set.
void init(T *p1, T *p2)
Initialize with pointer p1 and p2.
CombPtrFlag(T *p1, T *p2)
Initialize with pointer p1 and p2.
T * ptr(T *p) const
Return the other pointer when p is given.
Support classes for propagators using a view-value graph.
Finite domain integers.
Gecode toplevel namespace
#define forceinline
Definition config.hpp:194