text: /* Copyright 2004,2007,2010 ENSEIRB, INRIA & CNRS
  **
  ** This file is part of the Scotch software package for static mapping,
  ** graph partitioning and sparse matrix ordering.
  **
  ** This software is governed by the CeCILL-C license under French law
  ** and abiding by the rules of distribution of free software. You can
  ** use, modify and/or redistribute the software under the terms of the
  ** CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
  ** URL: "http://www.cecill.info".
  ** 
  ** As a counterpart to the access to the source code and rights to copy,
  ** modify and redistribute granted by the license, users are provided
  ** only with a limited warranty and the software's author, the holder of
  ** the economic rights, and the successive licensors have only limited
  ** liability.
  ** 
  ** In this respect, the user's attention is drawn to the risks associated
  ** with loading, using, modifying and/or developing or reproducing the
  ** software by the user in light of its specific status of free software,
  ** that may mean that it is complicated to manipulate, and that also
  ** therefore means that it is reserved for developers and experienced
  ** professionals having in-depth computer knowledge. Users are therefore
  ** encouraged to load and test the software's suitability as regards
  ** their requirements in conditions enabling the security of their
  ** systems and/or data to be ensured and, more generally, to use and
  ** operate it in the same conditions as regards security.
  ** 
  ** The fact that you are presently reading this means that you have had
  ** knowledge of the CeCILL-C license and that you accept its terms.
  */
  /************************************************************/
  /**                                                        **/
  /**   NAME       : vgraph_separate_bd.h                    **/
  /**                                                        **/
  /**   AUTHOR     : Francois PELLEGRINI                     **/
  /**              : Cedric CHEVALIER                        **/
  /**                                                        **/
  /**   FUNCTION   : This module contains the data declara-  **/
  /**                tions for the separation graph banding  **/
  /**                module.                                 **/
  /**                                                        **/
  /**   DATES      :   Version 5.0  : from : 18 oct 2004     **/
  /**                                 to   : 16 sep 2006     **/
  /**                  Version 5.1  : from : 30 oct 2007     **/
  /**                                 to   : 04 nov 2010     **/
  /**                                                        **/
  /************************************************************/
  
  /*
  **  The type and structure definitions.
  */
  
  /*+ This structure holds the method parameters. +*/
  
  typedef struct VgraphSeparateBdParam_ {
    Gnum                      distmax;              /*+ Maximum distance to separator +*/
    Strat *                   stratbnd;             /*+ Strategy for band graph       +*/
    Strat *                   stratorg;             /*+ Strategy for original graph   +*/
  } VgraphSeparateBdParam;
  
  /*+ Neighbor queue. +*/
  
  typedef struct VgraphSeparateBdQueue_ {
    Gnum *                    head;                 /*+ Head of distance queue  +*/
    Gnum *                    tail;                 /*+ Tail of distance queue  +*/
    Gnum *                    qtab;                 /*+ Array of queue elements +*/
  } VgraphSeparateBdQueue;
  
  /*
  **  The function prototypes.
  */
  
  int                         vgraphSeparateBd    (Vgraph * RESTRICT const, const VgraphSeparateBdParam * RESTRICT const);
  
  /*
  **  The macro definitions.
  */
  
  #define vgraphSeparateBdQueueFlush(queue)    ((queue)->head = (queue)->tail = (queue)->qtab)
  #define vgraphSeparateBdQueueEmpty(queue)    ((queue)->head <= (queue)->tail)
  #define vgraphSeparateBdQueuePut(queue,vnum) (* ((queue)->head ++) = (vnum))
  #define vgraphSeparateBdQueueGet(queue)      (* ((queue)->tail ++))
  