Function splitbill

src/shk.c:3622–3658

}

void
splitbill(struct obj *obj, struct obj *otmp)
{
    /* otmp has been split off from obj */
    struct bill_x *bp;
    long tmp;
    struct monst *shkp = shop_keeper(*u.ushops);

    if (!shkp || !inhishop(shkp)) {
        impossible("splitbill: no resident shopkeeper??");
        return;
    }
    bp = onbill(obj, shkp, FALSE);
    if (!bp) {
        impossible("splitbill: not on bill?");
        return;
    }
    if (bp->bquan < otmp->quan) {
        impossible("Negative quantity on bill??");
    }
    if (bp->bquan == otmp->quan) {
        impossible("Zero quantity on bill??");
    }
    bp->bquan -= otmp->quan;

    if (ESHK(shkp)->billct == BILLSZ) {
        otmp->unpaid = 0;
    } else {
        tmp = bp->price;
        bp = &(ESHK(shkp)->bill_p[ESHK(shkp)->billct]);
        bp->bo_id = otmp->o_id;
        bp->bquan = otmp->quan;
        bp->useup = FALSE;
        bp->price = tmp;
        ESHK(shkp)->billct++;
    }
}

staticfn void
sub_one_frombill(struct obj *obj, struct monst *shkp)