dtsize.c

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#include "config.h"
 
#include        <cdt/dthdr.h>
 
/*      Return the # of objects in the dictionary
**
**      Written by Kiem-Phong Vo (5/25/96)
*/
 
static int treecount(Dtlink_t* e)
{       return e ? treecount(e->left) + treecount(e->right) + 1 : 0;
}
 
int dtsize(Dt_t* dt)
{
        UNFLATTEN(dt);
 
        if (dt->data.size < 0) // !(dt->data.type & (DT_SET|DT_BAG))
        {       if (dt->data.type & (DT_OSET|DT_OBAG))
                        dt->data.size = treecount(dt->data.here);
        }
 
        return dt->data.size;
}