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#ifndef GECODE_INT_SUPPORT_VALUES_HH#define GECODE_INT_SUPPORT_VALUES_HH
#include <gecode/int.hh>
namespace Gecode { namespace Int {
/** * \brief %Support value iterator and recorder * * Requires \code #include <gecode/int/support-values.hh> \endcode * \ingroup FuncIntProp */ template<class View, class A> class SupportValues { private: /// Memory allocator A& a; /// Range and position information class RangePos { public: int min; ///< Minimum of range unsigned int pos; ///< Starting position of range }; /// Value iterator for unsupported values class Unsupported { private: /// Current range RangePos* rp; /// Current position unsigned int p; /// Access to other information SupportValues& sv; /// Find next unsupported value void find(void); public: /// \name Constructors and initialization //@{ /// Initialize with values from \a sv Unsupported(SupportValues& sv0); //@}
/// \name Iteration control //@{ /// Test whether iterator is still at a value or done bool operator ()(void) const; /// Move iterator to next value (if possible) void operator ++(void); //@}
/// \name Value access //@{ /// Return current value int val(void) const; //@} };
/// The view View x; /// Bit set Gecode::Support::BitSetBase bs; /// Start of range and position information RangePos* rp_fst; /// End of range and position information RangePos* rp_lst; /// Current range RangePos* rp; /// Current value int v; /// Current maximum of range int max;
/// Mark \a n as supported and return whether value can be supported bool _support(int n); public: /// Initialize for view \a x SupportValues(A& a, View x); /// Destructor ~SupportValues(void);
/// \name Iteration control //@{ /// Reset iterator void reset(void); /// Test whether iterator is still at a value or done bool operator ()(void) const; /// Move iterator to next value (if possible) void operator ++(void); //@}
/// \name Value access //@{ /// Return current value int val(void) const; //@}
/// \name Support control //@{ /// Mark current (iterator) value as supported void support(void); /// Mark \a n as supported if possible bool support(int n); /// Mark \a n as supported if possible bool support(long long int n); /// Remove all unsupported values ModEvent tell(Space& home); //@} };
}}
#include <gecode/int/support-values.hpp>
#endif
// STATISTICS: int-prop