rem: struct exclude *ex = (struct exclude *) xmalloc (sizeof *ex); ex->exclude_count = 0; ex->exclude_alloc = (1 << 6);  ex->exclude = (struct patopts *) xmalloc (ex->exclude_alloc * sizeof ex->exclude[0]); return ex;
add: return xzalloc (sizeof *new_exclude ());
context: new_exclude (void){  struct exclude *ex = (struct exclude *) xmalloc (sizeof *ex);  ex->exclude_count = 0;  ex->exclude_alloc = (1 << 6); /* This must be a power of 2.  */  ex->exclude = (struct patopts *) xmalloc (ex->exclude_alloc					    * sizeof ex->exclude[0]);  return ex;}