8   struct linestack *catch = *lls;  in linestack_addstack()  local
11     if (pos > catch->len) error_exit("linestack_addstack past end.");  in linestack_addstack()
14   if (catch->len+throw->len >= catch->max) {  in linestack_addstack()
16     catch->max = ((catch->len+throw->len)|63)+1;  in linestack_addstack()
17     *lls = xmalloc(sizeof(struct linestack)+catch->max*sizeof(struct ptr_len));  in linestack_addstack()
18     memcpy(*lls, catch, sizeof(struct linestack)+pos*sizeof(struct ptr_len));  in linestack_addstack()
22   if (pos != catch->len)  in linestack_addstack()
23     memmove((*lls)->idx+pos+throw->len, catch->idx+pos,  in linestack_addstack()
24       (catch->len-pos)*sizeof(struct ptr_len));  in linestack_addstack()
27   if (catch != *lls) {  in linestack_addstack()
28     free(catch);  in linestack_addstack()
29     catch = *lls;  in linestack_addstack()
32   memcpy(catch->idx+pos, throw->idx, throw->len*sizeof(struct ptr_len));  in linestack_addstack()
33   catch->len += throw->len;  in linestack_addstack()