src/mdd/mdd_smooth.c

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#include "mdd.h"

/*
 * MDD Package
 *
 * $Id: mdd_smooth.c,v 1.10 2002/08/27 03:17:38 fabio Exp $
 * 
 * Author: Timothy Kam
 *
 * Copyright 1992 by the Regents of the University of California.
 *
 * All rights reserved.  Permission to use, copy, modify and distribute
 * this software is hereby granted, provided that the above copyright
 * notice and this permission notice appear in all copies.  This software
 * is made available as is, with no warranties.
 */

mdd_t *
mdd_smooth(
  mdd_manager *mgr,
  mdd_t *fn,
  array_t *mvars)
{
    array_t *bdd_vars;
    int i, j, mv_no;
    mvar_type mv;
    mdd_t *top;
    bdd_t *temp;
    array_t *mvar_list = mdd_ret_mvar_list(mgr);
        
        
    if ( mvars == NIL(array_t) ) {
        top = bdd_dup(fn);
        printf("\nWARNING: Empty Array of Smoothing Variables\n");
        return top;
    }
    else if ( array_n(mvars) == 0) {
        top = bdd_dup(fn);
        printf("\nWARNING: Empty Array of Smoothing Variables\n");
        return top;
    }
                
        
    bdd_vars = array_alloc(bdd_t *, 0); 
    for (i=0; i<array_n(mvars); i++) {
        mv_no = array_fetch(int, mvars, i);
        mv = array_fetch(mvar_type, mvar_list, mv_no);
        if (mv.status == MDD_BUNDLED) {
            (void) fprintf(stderr, 
                        "\nmdd_smooth: bundled variable %s used\n",mv.name);
            fail("");
        }

        for (j=0; j<mv.encode_length; j++) {
            temp = bdd_get_variable(mgr, mdd_ret_bvar_id(&mv,j) );
            array_insert_last(bdd_t *, bdd_vars, temp);
        }
    }
        
    top = bdd_smooth(fn, bdd_vars);
  
    for (i=0; i<array_n(bdd_vars); i++) {
        temp = array_fetch(bdd_t *, bdd_vars, i);
        bdd_free(temp);
    }
    array_free(bdd_vars);

    return top;
}

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/* Static function prototypes                                                */
/*---------------------------------------------------------------------------*/

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