when.hpp
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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
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* permit persons to whom the Software is furnished to do so, subject to
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*
* The above copyright notice and this permission notice shall be
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*
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namespace Gecode { namespace Int { namespace Exec {
forceinline
When::When(Home home, BoolView x,
std::function<void(Space& home)> t0,
std::function<void(Space& home)> e0)
: UnaryPropagator<BoolView,PC_BOOL_VAL>(home,x), t(t0), e(e0) {
home.notice(*this,AP_DISPOSE);
}
forceinline
When::When(Space& home, When& p)
: UnaryPropagator<BoolView,PC_BOOL_VAL>(home,p), t(p.t), e(p.e) {
}
forceinline ExecStatus
When::post(Home home, BoolView x,
std::function<void(Space& home)> t,
std::function<void(Space& home)> e) {
if (!t)
throw InvalidFunction("When::When");
if (!e)
throw InvalidFunction("When::When");
if (x.zero()) {
e(home);
return home.failed() ? ES_FAILED : ES_OK;
} else if (x.one()) {
t(home);
return home.failed() ? ES_FAILED : ES_OK;
} else {
(void) new (home) When(home,x,t,e);
return ES_OK;
}
}
}}}
// STATISTICS: int-prop
Gecode::Home
Home class for posting propagators
Definition core.hpp:856
Gecode::Int::BoolView
Boolean view for Boolean variables.
Definition view.hpp:1380
Gecode::Int::BoolView::zero
bool zero(void) const
Test whether view is assigned to be zero.
Definition bool.hpp:220
Gecode::Int::BoolView::one
bool one(void) const
Test whether view is assigned to be one.
Definition bool.hpp:224
Gecode::Int::Exec::When::post
static ExecStatus post(Home home, BoolView x, std::function< void(Space &home)> t, std::function< void(Space &home)> e)
Post propagator.
Definition when.hpp:50
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::e
SharedData< std::function< void(Space &home)> > e
Else function pointer.
Definition exec.hh:58
Gecode::InvalidFunction
Exception: invalid function
Definition exception.hpp:114
Gecode::Propagator::Space
friend class Space
Definition core.hpp:1066
Gecode::UnaryPropagator< BoolView, PC_BOOL_VAL >::UnaryPropagator
UnaryPropagator(Space &home, UnaryPropagator &p)
Gecode::Space::failed
bool failed(void) const
Check whether space is failed.
Definition core.hpp:4044
Gecode::Space::notice
void notice(Actor &a, ActorProperty p, bool duplicate=false)
Notice actor property.
Definition core.hpp:4059
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::Int::PC_BOOL_VAL
const Gecode::PropCond PC_BOOL_VAL
Propagate when a view becomes assigned (single value).
Definition var-type.hpp:126
Gecode
Gecode toplevel namespace
Gecode::ExecStatus
ExecStatus
Definition core.hpp:472
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition core.hpp:476
Gecode::ES_FAILED
@ ES_FAILED
Execution has resulted in failure.
Definition core.hpp:474
forceinline
#define forceinline
Definition config.hpp:187