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gecode
float
relax.cpp
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/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/*
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* Main authors:
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* Christian Schulte <schulte@gecode.org>
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*
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* Copyright:
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* Christian Schulte, 2016
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*
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* This file is part of Gecode, the generic constraint
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* development environment:
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* http://www.gecode.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include <
gecode/float.hh
>
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#include <
gecode/search/relax.hh
>
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namespace
Gecode
{
namespace
Float {
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class
Relax
{
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public
:
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ExecStatus
operator ()
(
Home
home,
FloatVar
x
,
FloatVar
sx);
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};
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forceinline
ExecStatus
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Relax::operator ()
(
Home
home,
FloatVar
x
,
FloatVar
sx) {
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FloatView
xv(
x
);
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return
me_failed
(xv.
eq
(home,sx.
val
())) ?
ES_FAILED
:
ES_OK
;
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}
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}}
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namespace
Gecode
{
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void
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relax
(
Home
home,
const
FloatVarArgs
&
x
,
const
FloatVarArgs
& sx,
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Rnd
r
,
double
p
) {
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if
(
x
.size() != sx.size())
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throw
Float::ArgumentSizeMismatch
(
"Float::relax"
);
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if
((
p
< 0.0) || (
p
> 1.0))
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throw
Float::OutOfLimits
(
"Float::relax"
);
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Float::Relax
fr;
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Search::relax<FloatVarArgs,Float::Relax>(home,
x
,sx,
r
,
p
,fr);
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}
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}
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// STATISTICS: float-other
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Gecode::FloatVarArgs
Passing float variables.
Definition:
float.hh:979
Gecode::x
Post propagator for SetVar x
Definition:
set.hh:767
relax.hh
Gecode::me_failed
bool me_failed(ModEvent me)
Check whether modification event me is failed.
Definition:
modevent.hpp:54
Gecode::FloatVar::val
FloatVal val(void) const
Return assigned value.
Definition:
float.hpp:53
Gecode::relax
void relax(Home home, const FloatVarArgs &x, const FloatVarArgs &sx, Rnd r, double p)
Definition:
relax.cpp:57
Gecode
Gecode toplevel namespace
Gecode::Float::FloatView
Float view for float variables.
Definition:
view.hpp:52
Gecode::Home
Home class for posting propagators
Definition:
core.hpp:856
float.hh
Gecode::r
Post propagator for SetVar SetOpType SetVar SetRelType r
Definition:
set.hh:767
Gecode::Rnd
Random number generator.
Definition:
rnd.hpp:42
Gecode::Float::OutOfLimits
Exception: Value out of limits
Definition:
exception.hpp:46
Gecode::FloatVar
Float variables.
Definition:
float.hh:870
Gecode::Float::Relax::operator()
ExecStatus operator()(Home home, FloatVar x, FloatVar sx)
Post the actual equality for non-relaxed variables.
Definition:
relax.cpp:47
Gecode::Float::ArgumentSizeMismatch
Exception: Arguments are of different size
Definition:
exception.hpp:74
forceinline
#define forceinline
Definition:
config.hpp:192
Gecode::Float::FloatView::eq
ModEvent eq(Space &home, int n)
Restrict domain values to be equal to n.
Definition:
float.hpp:131
Gecode::ES_FAILED
@ ES_FAILED
Execution has resulted in failure.
Definition:
core.hpp:474
Gecode::Float::Relax
Class for posting equalities for non-relaxed variables.
Definition:
relax.cpp:40
Gecode::ES_OK
@ ES_OK
Execution is okay.
Definition:
core.hpp:476
p
int p
Number of positive literals for node type.
Definition:
bool-expr.cpp:232
Gecode::ExecStatus
ExecStatus
Definition:
core.hpp:472