channel.hpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main author:
* Christian Schulte <schulte@gecode.org>
* Guido Tack <tack@gecode.org>
*
* Copyright:
* Christian Schulte, 2018
* Guido Tack, 2018
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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namespace Gecode {
inline BoolVar
channel(Home home, IntVar x, IntPropLevel ipl) {
(void) ipl;
BoolVar b(home,0,1); channel(home,b,x);
return b;
}
inline IntVar
channel(Home home, BoolVar b, IntPropLevel ipl) {
(void) ipl;
IntVar x(home,0,1); channel(home,b,x);
return x;
}
#ifdef GECODE_HAS_FLOAT_VARS
inline IntVar
channel(Home home, FloatVar f) {
int min = static_cast<int>(std::max(static_cast<double>(Int::Limits::min),
std::ceil(f.min())));
int max = static_cast<int>(std::min(static_cast<double>(Int::Limits::max),
std::floor(f.max())));
IntVar x(home,min,max);
channel(home,f,x);
return x;
}
#endif
#ifdef GECODE_HAS_SET_VARS
inline SetVar
channel(Home home, const IntVarArgs& x, IntPropLevel ipl) {
(void) ipl;
SetVar s(home,IntSet::empty,Set::Limits::min,Set::Limits::max);
rel(home,SOT_UNION,x,s);
nvalues(home,x,IRT_EQ,expr(home,cardinality(s)));
return s;
}
#endif
}
// STATISTICS: minimodel-any
Gecode::BoolVar
Boolean integer variables.
Definition int.hh:512
Gecode::FloatVar
Float variables.
Definition float.hh:870
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::IntSet::empty
static const IntSet empty
Empty set.
Definition int.hh:283
Gecode::IntVarArgs
Passing integer variables.
Definition int.hh:656
Gecode::IntVar
Integer variables.
Definition int.hh:371
Gecode::SetVar
Set variables
Definition set.hh:127
Gecode::rel
void rel(Home home, FloatVar x0, FloatRelType frt, FloatVar x1)
Post propagator for .
Definition rel.cpp:68
Gecode::IntPropLevel
IntPropLevel
Propagation levels for integer propagators.
Definition int.hh:974
Gecode::IRT_EQ
@ IRT_EQ
Equality ( ).
Definition int.hh:926
Gecode::SOT_UNION
@ SOT_UNION
Union.
Definition set.hh:661
Gecode::Int::Limits::min
const int min
Smallest allowed integer value.
Definition int.hh:118
Gecode::Int::Limits::max
const int max
Largest allowed integer value.
Definition int.hh:116
Gecode::Set::Limits::min
const int min
Smallest allowed integer in integer set.
Definition set.hh:99
Gecode::Set::Limits::max
const int max
Largest allowed integer in integer set.
Definition set.hh:97
Gecode
Gecode toplevel namespace
Gecode::channel
void channel(Home home, FloatVar x0, IntVar x1)
Post propagator for channeling a float and an integer variable .
Definition channel.cpp:41
Gecode::expr
IntVar expr(Home home, const LinIntExpr &e, const IntPropLevels &ipls=IntPropLevels::def)
Post linear expression and return its value.
Definition int-expr.cpp:915
Gecode::min
void min(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition arithmetic.cpp:67
Gecode::max
void max(Home home, FloatVar x0, FloatVar x1, FloatVar x2)
Post propagator for .
Definition arithmetic.cpp:49
Gecode::nvalues
void nvalues(Home home, const IntVarArgs &x, IntRelType irt, int y, IntPropLevel ipl=IPL_DEF)
Post propagator for .
Definition nvalues.cpp:40
Gecode::cardinality
LinIntExpr cardinality(const SetExpr &)
Cardinality of set expression.
Definition set-expr.cpp:817