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1.8.3.1
gecode
flatzinc
option.hh
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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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* Guido Tack <tack@gecode.org>
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*
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* Copyright:
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* Guido Tack, 2007
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*
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* Last modified:
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* $Date: 2009-09-10 11:25:57 +0200 (Thu, 10 Sep 2009) $ by $Author: tack $
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* $Revision: 9698 $
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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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#ifndef __FLATZINC_OPTION_HH__
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#define __FLATZINC_OPTION_HH__
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namespace
Gecode {
namespace
FlatZinc {
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template
<
class
Val>
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struct
Option
{
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private
:
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bool
_some;
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Val _v;
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public
:
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bool
operator()
(
void
)
const
{
return
_some; }
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const
Val&
some
(
void
)
const
{
return
_v; }
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static
Option<Val>
none
(
void
) {
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Option<Val>
o;
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o._some =
false
;
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new
(&o._v) Val();
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return
o;
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}
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static
Option<Val>
some
(
const
Val&
v
) {
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Option<Val>
o;
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o._some =
true
;
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o._v =
v
;
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return
o;
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}
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};
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}}
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#endif
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// STATISTICS: flatzinc-any