text: /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
  /*
   *  Main authors:
   *     Christian Schulte <schulte@gecode.org>
   *
   *  Copyright:
   *     Christian Schulte, 2004
   *
   *  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.
   *
   */
  
  namespace Gecode { namespace Iter { namespace Ranges {
  
    /**
     * \brief Value iterator from range iterator
     *
     * \ingroup FuncIterValues
     */
    template<class I>
    class ToValues {
    protected:
      /// Range iterator used
      I i;
      /// Current value
      int cur;
      /// End of current range
      int max;
      /// Initialize iterator
      void start(void);
    public:
      /// \name Constructors and initialization
      //@{
      /// Default constructor
      ToValues(void);
      /// Initialize with values from range iterator \a i
      ToValues(I& i);
      /// Initialize with values from range iterator \a i
      void init(I& i);
      //@}
  
      /// \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;
      //@}
    };
  
  
  
    template<class I>
    forceinline
    ToValues<I>::ToValues(void) {}
  
    template<class I>
    forceinline void
    ToValues<I>::start(void) {
      if (i()) {
        cur = i.min(); max = i.max();
      } else {
        cur = 1;       max = 0;
      }
    }
  
    template<class I>
    forceinline
    ToValues<I>::ToValues(I& i0)
      : i(i0) {
      start();
    }
  
    template<class I>
    forceinline void
    ToValues<I>::init(I& i0) {
      i = i0;
      start();
    }
  
  
    template<class I>
    forceinline bool
    ToValues<I>::operator ()(void) const {
      return (cur <= max);
    }
  
    template<class I>
    forceinline void
    ToValues<I>::operator ++(void) {
      ++cur;
      if (cur > max) {
        ++i;
        if (i()) {
          cur = i.min(); max = i.max();
        }
      }
    }
  
    template<class I>
    forceinline int
    ToValues<I>::val(void) const {
      return cur;
    }
  
  }}}
  
  // STATISTICS: iter-any
  
  