nd_increment()

static int nd_increment ( ND_IBOX *  ibox, int  ndims, int *  counter  )

inlinestatic

Given an n-d index array (counter), and a domain to increment it in (ibox) increment it by one, unless it's already at the max of the domain, in which case return false.

Definition at line 833 of file gserialized_estimate.c.

References FALSE, ND_IBOX_T::max, ND_IBOX_T::min, and TRUE.

Referenced by compute_gserialized_stats_mode(), estimate_join_selectivity(), and estimate_selectivity().

{
        int d = 0;

        while ( d < ndims )
        {
                if ( counter[d] < ibox->max[d] )
                {
                        counter[d] += 1;
                        break;
                }
                counter[d] = ibox->min[d];
                d++;
        }
        /* That's it, cannot increment any more! */
        if ( d == ndims )
                return FALSE;

        /* Increment complete! */
        return TRUE;
}

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