1 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 2 /* 3 * Main authors: 4 * Christian Schulte <schulte@gecode.org> 5 * Guido Tack <tack@gecode.org> 6 * 7 * Copyright: 8 * Christian Schulte, 2004 9 * Guido Tack, 2004 10 * 11 * This file is part of Gecode, the generic constraint 12 * development environment: 13 * http://www.gecode.org 14 * 15 * Permission is hereby granted, free of charge, to any person obtaining 16 * a copy of this software and associated documentation files (the 17 * "Software"), to deal in the Software without restriction, including 18 * without limitation the rights to use, copy, modify, merge, publish, 19 * distribute, sublicense, and/or sell copies of the Software, and to 20 * permit persons to whom the Software is furnished to do so, subject to 21 * the following conditions: 22 * 23 * The above copyright notice and this permission notice shall be 24 * included in all copies or substantial portions of the Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 30 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 31 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 32 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 33 * 34 */ 35 36 #ifndef GECODE_INT_IDX_VIEW_HH 37 #define GECODE_INT_IDX_VIEW_HH 38 39 #include <gecode/int.hh> 40 41 namespace Gecode { namespace Int { 42 43 /** 44 * \brief Class for pair of index and view 45 * 46 */ 47 template<class View> 48 class IdxView { 49 public: 50 /// The index 51 int idx; 52 /// Thhe view 53 View view; 54 /// Allocate memory for \a n index-view pairs 55 static IdxView* allocate(Space& home, int n); 56 }; 57 58 /// Class to map VarArg type to view 59 template<class View> 60 class ViewToVarArg {}; 61 62 /** 63 * \brief An array of IdxView pairs 64 * 65 */ 66 template<class View> 67 class IdxViewArray { 68 private: 69 /// The actual array 70 IdxView<View>* xs; 71 /// The size of the array 72 int n; 73 public: 74 /// Default constructor 75 IdxViewArray(void); 76 /// Copy constructor 77 IdxViewArray(const IdxViewArray<View>&); 78 /// Construct an IdxViewArray from \a x 79 IdxViewArray(Space& home, const typename ViewToVarArg<View>::argtype& x); 80 /// Construct an IdxViewArray of size \a n 81 IdxViewArray(Space& home, int n); 82 83 /// Return the current size 84 int size(void) const; 85 /// Set the size to \a n 86 void size(int n); 87 88 /// Access element \a n 89 IdxView<View>& operator [](int n); 90 /// Access element \a n 91 const IdxView<View>& operator [](int) const; 92 93 /** 94 * Subscribe propagator \a p with propagation condition \a pc 95 * to all elements of the array. 96 */ 97 void subscribe(Space& home, Propagator& p, PropCond pc, bool process=true); 98 /** 99 * Cancel subscription of propagator \a p with propagation condition \a pc 100 * for all elements of the array. 101 */ 102 void cancel(Space& home, Propagator& p, PropCond pc); 103 /// Schedule propagator \a p 104 void reschedule(Space& home, Propagator& p, PropCond pc); 105 106 /// Cloning 107 void update(Space& home, IdxViewArray<View>& x); 108 }; 109 110 /** 111 * \brief Print array elements enclosed in curly brackets 112 * \relates IdxViewArray 113 */ 114 template<class Char, class Traits, class View> 115 std::basic_ostream<Char,Traits>& 116 operator <<(std::basic_ostream<Char,Traits>& os, 117 const IdxViewArray<View>& x); 118 119 }} 120 121 #include <gecode/int/idx-view.hpp> 122 123 #endif 124 125 126 // STATISTICS: int-prop 127 128