/* Copyright (c) 1998 Lucent Technologies - All rights reserved. */
#include <u.h>
#include <libg.h>

int rectclip(Rectangle *rp, Rectangle b)        /* first by reference, second by value */
{
    Rectangle *bp = &b;
    /*
     * Expand rectXrect() in line for speed
     */
    if((rp->min.x<bp->max.x && bp->min.x<rp->max.x &&
        rp->min.y<bp->max.y && bp->min.y<rp->max.y)==0)
        return 0;
    /* They must overlap */
    if(rp->min.x < bp->min.x)
        rp->min.x = bp->min.x;
    if(rp->min.y < bp->min.y)
        rp->min.y = bp->min.y;
    if(rp->max.x > bp->max.x)
        rp->max.x = bp->max.x;
    if(rp->max.y > bp->max.y)
        rp->max.y = bp->max.y;
    return 1;
}
