when.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2009
*
* 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
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* 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.
*
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#include <gecode/int/exec.hh>
namespace Gecode { namespace Int { namespace Exec {
Actor*
When::copy(Space& home) {
return new (home) When(home,*this);
}
ExecStatus
When::propagate(Space& home, const ModEventDelta&) {
if (x0.zero()) {
GECODE_VALID_FUNCTION(e());
e()(home);
} else {
assert(x0.one());
GECODE_VALID_FUNCTION(t());
t()(home);
}
if (home.failed())
return ES_FAILED;
return home.ES_SUBSUMED(*this);
}
size_t
When::dispose(Space& home) {
home.ignore(*this,AP_DISPOSE);
t.~SharedData<std::function<void(Space& home)>>();
e.~SharedData<std::function<void(Space& home)>>();
(void) UnaryPropagator<BoolView,PC_BOOL_VAL>::dispose(home);
return sizeof(*this);
}
}}}
// STATISTICS: int-prop
Gecode::Int::Exec::When::copy
virtual Actor * copy(Space &home)
Copy propagator during cloning.
Definition when.cpp:39
Gecode::Int::Exec::When::propagate
virtual ExecStatus propagate(Space &home, const ModEventDelta &med)
Perform propagation.
Definition when.cpp:44
Gecode::Int::Exec::When::t
SharedData< std::function< void(Space &home)> > t
Then function.
Definition exec.hh:56
Gecode::Int::Exec::When::When
When(Space &home, When &p)
Constructor for cloning p.
Definition when.hpp:45
Gecode::Int::Exec::When::dispose
virtual size_t dispose(Space &home)
Dispose propagator.
Definition when.cpp:59
Gecode::Int::Exec::When::e
SharedData< std::function< void(Space &home)> > e
Else function pointer.
Definition exec.hh:58
Gecode::Propagator::Space
friend class Space
Definition core.hpp:1066
Gecode::UnaryPropagator< BoolView, PC_BOOL_VAL >::x0
BoolView x0
Definition pattern.hpp:58
Gecode::UnaryPropagator::dispose
virtual size_t dispose(Space &home)
Delete propagator and return its size.
Definition pattern.hpp:339
exec.hh
Gecode::Space::ES_SUBSUMED
ExecStatus ES_SUBSUMED(Propagator &p)
Definition core.hpp:3563
Gecode::Space::ignore
void ignore(Actor &a, ActorProperty p, bool duplicate=false)
Ignore actor property.
Definition core.hpp:4074
Gecode::ModEventDelta
int ModEventDelta
Modification event deltas.
Definition core.hpp:89
Gecode::Space::failed
bool failed(void) const
Check whether space is failed.
Definition core.hpp:4044
Gecode::AP_DISPOSE
@ AP_DISPOSE
Actor must always be disposed.
Definition core.hpp:562
Gecode::Int::Exec
Synchronized execution.
Gecode::Int
Finite domain integers.
Gecode
Gecode toplevel namespace
Gecode::ExecStatus
ExecStatus
Definition core.hpp:472
Gecode::ES_FAILED
@ ES_FAILED
Execution has resulted in failure.
Definition core.hpp:474
GECODE_VALID_FUNCTION
#define GECODE_VALID_FUNCTION(f)
Assert that a function is valid.
Definition macros.hpp:94