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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209/* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- *//* * Main authors: * Matthias Balzer <matthias.balzer@itwm.fraunhofer.de> * * Copyright: * Fraunhofer ITWM, 2017 * * This file is part of Gecode, the generic constraint * development environment: * http://www.gecode.org * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */
#include <gecode/minimodel.hh>
#include <cstddef>#include <tuple>#include <utility>
/// reproduce C++-14 std::index_sequencenamespace { namespace cxx14 {
namespace detail {
template<std::size_t...> struct sequence {};
template<std::size_t N, std::size_t... I> struct make_sequence : make_sequence<N - 1, N - 1, I...> {};
template<std::size_t... I> struct make_sequence<0, I...> { using type = sequence<I...>; }; }
template<std::size_t... I> using index_sequence = detail::sequence<I...>;
template<typename... Ts> using index_sequence_for = typename detail::make_sequence<sizeof...(Ts)>::type;}}
namespace Gecode {
namespace { /// Buffer for domain constraint arguments template<typename... Args> class DomArgs { public: /// Constructor DomArgs(Args...);
protected: /// Post reified domain constraint using the stored arguments template<std::size_t... I> void apply(Home, BoolVar, const IntPropLevels&, cxx14::index_sequence<I...>);
private: /// Storage for the arguments std::tuple<Args...> _args; };
/// Buffer for domain constraint arguments - partial specialization for IntVar template<typename... Args> class DomArgs<IntVar, Args...> { public: /// Constructor DomArgs(IntVar, Args...);
protected: /// Post reified domain constraint using stored arguments template<std::size_t... I> void apply(Home, BoolVar, const IntPropLevels&, cxx14::index_sequence<I...>);
private: /// Storage for the arguments std::tuple<IntVar, Args...> _args; };
/* * Operations for argument buffer * */ template<typename... Args> DomArgs<Args...>::DomArgs(Args... args) : _args(std::forward<Args>(args)...) {}
template<typename... Args> template<std::size_t... I> void DomArgs<Args...>::apply(Home home, BoolVar b, const IntPropLevels&, cxx14::index_sequence<I...>) { dom(home, std::get<I>(_args)..., b); }
template<typename... Args> DomArgs<IntVar, Args...>::DomArgs(IntVar x, Args... args) : _args (x, std::forward<Args>(args)...) {}
template<typename... Args> template<std::size_t... I> void DomArgs<IntVar, Args...>::apply(Home home, BoolVar b, const IntPropLevels&, cxx14::index_sequence<I...>) { dom(home, std::get<I>(_args)..., b); }
/// Domain expression template<typename... Args> class DomExpr : public DomArgs<Args...>, public BoolExpr::Misc { public: using DomArgs<Args...>::DomArgs;
/// Constrain \a b to be equivalent to the expression (negated if \a neg) virtual void post(Home, BoolVar b, bool neg, const IntPropLevels&) override; /// Destructor virtual ~DomExpr() = default; };
template<typename... Args> void DomExpr<Args...>::post(Home home, BoolVar b, bool neg, const IntPropLevels& ipls) { DomArgs<Args...>::apply(home, neg ? (!b).expr (home, ipls) : b, ipls, cxx14::index_sequence_for<Args...>{}); } }
/* * Domain constraints * */ BoolExpr dom(const IntVar& x, int n) { return BoolExpr(new DomExpr<IntVar, int>(x, n)); }
BoolExpr dom(const IntVar& x, int l, int u) { return BoolExpr(new DomExpr<IntVar, int, int>(x, l, u)); }
BoolExpr dom(const IntVar& x, const IntSet& s) { return BoolExpr(new DomExpr<IntVar, IntSet>(x, s)); }
#ifdef GECODE_HAS_SET_VARS BoolExpr dom(const SetVar& x, SetRelType rt, int i) { return BoolExpr(new DomExpr<SetVar, SetRelType, int>(x, rt, i)); }
BoolExpr dom(const SetVar& x, SetRelType rt, int i, int j) { return BoolExpr(new DomExpr<SetVar, SetRelType, int, int>(x, rt, i, j)); }
BoolExpr dom(const SetVar& x, SetRelType rt, const IntSet& s) { return BoolExpr(new DomExpr<SetVar, SetRelType, IntSet>(x, rt, s)); }#endif
#ifdef GECODE_HAS_FLOAT_VARS BoolExpr dom(const FloatVar& x, const FloatVal& n) { return BoolExpr(new DomExpr<FloatVar, FloatVal>(x, n)); }
BoolExpr dom(const FloatVar& x, FloatNum l, FloatNum u) { return BoolExpr(new DomExpr<FloatVar, FloatNum, FloatNum>(x, l, u)); }#endif}
// STATISTICS: minimodel-any