tail                9 bidlist.c        ret->tail = NULL;
tail               18 bidlist.c        newnode->prev = blist->tail; 
tail               20 bidlist.c        if(blist->tail != NULL){
tail               21 bidlist.c          blist->tail->next = newnode;
tail               23 bidlist.c        blist->tail = newnode;
tail               40 bidlist.c          blist->tail = prev;
tail               13 bidlist.h        bidnode* tail;
tail               34 scenario.c         bidlistsetmark(scenario, scenario->tail);