set-expr.hpp
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00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Guido Tack <tack@gecode.org> 00005 * 00006 * Copyright: 00007 * Guido Tack, 2010 00008 * 00009 * Last modified: 00010 * $Date: 2011-01-21 16:01:14 +0100 (Fri, 21 Jan 2011) $ by $Author: schulte $ 00011 * $Revision: 11553 $ 00012 * 00013 * This file is part of Gecode, the generic constraint 00014 * development environment: 00015 * http://www.gecode.org 00016 * 00017 * Permission is hereby granted, free of charge, to any person obtaining 00018 * a copy of this software and associated documentation files (the 00019 * "Software"), to deal in the Software without restriction, including 00020 * without limitation the rights to use, copy, modify, merge, publish, 00021 * distribute, sublicense, and/or sell copies of the Software, and to 00022 * permit persons to whom the Software is furnished to do so, subject to 00023 * the following conditions: 00024 * 00025 * The above copyright notice and this permission notice shall be 00026 * included in all copies or substantial portions of the Software. 00027 * 00028 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00029 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00030 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00031 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00032 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00033 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00034 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00035 * 00036 */ 00037 00038 #ifdef GECODE_HAS_SET_VARS 00039 00040 namespace Gecode { 00041 00042 /* 00043 * Operations for expressions 00044 * 00045 */ 00046 forceinline 00047 SetExpr::Node::Node(void) : use(1) {} 00048 00049 forceinline void* 00050 SetExpr::Node::operator new(size_t size) { 00051 return heap.ralloc(size); 00052 } 00053 forceinline void 00054 SetExpr::Node::operator delete(void* p, size_t) { 00055 heap.rfree(p); 00056 } 00057 00058 forceinline 00059 SetExpr::SetExpr(void) : n(NULL) {} 00060 00061 forceinline 00062 SetExpr::SetExpr(const SetExpr& e) : n(e.n) { 00063 n->use++; 00064 } 00065 00066 forceinline bool 00067 SetExpr::same(NodeType t0, NodeType t1) { 00068 return (t0==t1) || (t1==NT_VAR) || (t1==NT_CONST) || (t1==NT_LEXP); 00069 } 00070 00071 inline SetVar 00072 SetExpr::post(Home home) const { 00073 Region r(home); 00074 SetVar s(home,IntSet::empty, 00075 IntSet(Set::Limits::min,Set::Limits::max)); 00076 NNF::nnf(r,n,false)->post(home,SRT_EQ,s); 00077 return s; 00078 } 00079 00080 inline void 00081 SetExpr::post(Home home, SetRelType srt, const SetExpr& e) const { 00082 Region r(home); 00083 return NNF::nnf(r,n,false)->post(home,srt,NNF::nnf(r,e.n,false)); 00084 } 00085 inline void 00086 SetExpr::post(Home home, BoolVar b, bool t, 00087 SetRelType srt, const SetExpr& e) const { 00088 Region r(home); 00089 return NNF::nnf(r,n,false)->post(home,b,t,srt,NNF::nnf(r,e.n,false)); 00090 } 00091 00092 } 00093 00094 #endif 00095 00096 // STATISTICS: minimodel-any