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precede.cpp
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1/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
2/*
3 * Main authors:
4 * Christopher Mears <Chris.Mears@monash.edu>
5 *
6 * Contributing authors:
7 * Christian Schulte <schulte@gecode.org>
8 *
9 * Copyright:
10 * Christopher Mears, 2011
11 * Christian Schulte, 2011
12 *
13 * This file is part of Gecode, the generic constraint
14 * development environment:
15 * http://www.gecode.org
16 *
17 * Permission is hereby granted, free of charge, to any person obtaining
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37
38#include <gecode/int/precede.hh>
39
40namespace Gecode {
41
42 void
43 precede(Home home, const IntVarArgs& x, int s, int t, IntPropLevel) {
44 using namespace Int;
45 Limits::check(s,"Int::precede");
46 Limits::check(t,"Int::precede");
48
49 ViewArray<IntView> y(home, x);
51 }
52
53 void
54 precede(Home home, const IntVarArgs& x, const IntArgs& c, IntPropLevel) {
55 using namespace Int;
56 if (c.size() < 2)
57 return;
58 for (int i=c.size(); i--; )
59 Limits::check(c[i],"Int::precede");
61
62 for (int i=c.size()-1; i--; ) {
63 ViewArray<IntView> y(home, x);
65 }
66 }
67
68}
69
70// STATISTICS: int-post
71
FloatNum size(void) const
Return size of float value (distance between maximum and minimum)
Definition val.hpp:78
Home class for posting propagators
Definition core.hpp:856
Passing integer arguments.
Definition int.hh:634
Passing integer variables.
Definition int.hh:662
static ExecStatus post(Home home, ViewArray< View > &x, int s, int t)
Post propagator that s precedes t in x.
Definition single.hpp:96
View arrays.
Definition array.hpp:253
#define GECODE_POST
Check for failure in a constraint post function.
Definition macros.hpp:40
#define GECODE_ES_FAIL(es)
Check whether execution status es is failed, and fail space home.
Definition macros.hpp:103
void precede(Home home, const IntVarArgs &x, int s, int t, IntPropLevel=IPL_DEF)
Post propagator that s precedes t in x.
Definition precede.cpp:43
IntPropLevel
Propagation levels for integer propagators.
Definition int.hh:989
void check(int n, const char *l)
Check whether n is in range, otherwise throw out of limits with information l.
Definition limits.hpp:46
Finite domain integers.
Gecode toplevel namespace
Post propagator for SetVar SetOpType SetVar y
Definition set.hh:773
Post propagator for SetVar x
Definition set.hh:773