Jip J. Dekker
1d9faf38de
git-subtree-dir: software/gecode git-subtree-split: 313e87646da4fc2752a70e83df16d993121a8e40
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/* -*- 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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* 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
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