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1.8.1.2
gecode
int
nvalues
sym-bit-matrix.hpp
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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, 2011
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*
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* Last modified:
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* $Date: 2011-08-18 17:41:50 +1000 (Thu, 18 Aug 2011) $ by $Author: tack $
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* $Revision: 12311 $
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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 <algorithm>
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namespace
Gecode {
namespace
Int {
namespace
NValues {
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forceinline
int
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SymBitMatrix::pos
(
int
x,
int
y)
const
{
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assert(x < y);
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return
(x*(2*
n
-x-1)) / 2 + y - x - 1;
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}
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forceinline
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SymBitMatrix::SymBitMatrix
(
Region
&
r
,
int
n0)
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: Support::
BitSet
<
Region
>(r,static_cast<unsigned int>((n0*n0-n0)/2)),
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n(n0) {}
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forceinline
bool
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SymBitMatrix::get
(
int
x,
int
y)
const
{
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assert(x != y);
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if
(x > y) std::swap(x,y);
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return
Support::BitSet<Region>::get
(static_cast<unsigned int>(
pos
(x,y)));
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}
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forceinline
void
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SymBitMatrix::set
(
int
x,
int
y) {
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assert(x != y);
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if
(x > y) std::swap(x,y);
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Support::BitSet<Region>::set
(static_cast<unsigned int>(
pos
(x,y)));
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}
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}}}
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// STATISTICS: int-prop