ScoreOperatorInstance.cc

//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 1999 The Regents of the University of California 
// Permission to use, copy, modify, and distribute this software and
// its documentation for any purpose, without fee, and without a
// written agreement is hereby granted, provided that the above copyright 
// notice and this paragraph and the following two paragraphs appear in
// all copies. 
//
// IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
// DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
// LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
// EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. 
//
// THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON
// AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
// PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 
//
//////////////////////////////////////////////////////////////////////////////
//
// BRASS source file
//
// SCORE runtime support
// $Revision: 1.4 $
//
//////////////////////////////////////////////////////////////////////////////

#include "ScoreOperatorInstance.h"
#include "ScoreConfig.h"


// required by LEDA for use with lists/etc.

// provides comparison operation between ScoreOperatorInstances.
// NOTE: Right now, we only say 2 opeator instances are equal if their pointers
//       are equal. Otherwise, less than/greater than is determined
//       simply by their pointer values.
int compare(ScoreOperatorInstance * const & left, 
	    ScoreOperatorInstance * const & right) {
  if (left == right) {
    return(0);
  } else if (left < right) {
    return(-1);
  } else {
    return(1);
  }
}