Function sweeptolive

3rd/lua-5.4.3/src/lgc.c:843–849

** sweep a list until a live object (or end of list) */

** sweep a list until a live object (or end of list)
*/
static GCObject **sweeptolive (lua_State *L, GCObject **p) {
  GCObject **old = p;
  do {
    p = sweeplist(L, p, 1, NULL);
  } while (p == old);
  return p;
}

/* }====================================================== */