Function markold

3rd/lua-5.4.3/src/lgc.c:1194–1204

** Mark black 'OLD1' objects when starting a new young collection. ** Gray objects are already in some gray list, and so will be visited ** in the atomic step. */

** in the atomic step.
*/
static void markold (global_State *g, GCObject *from, GCObject *to) {
  GCObject *p;
  for (p = from; p != to; p = p->next) {
    if (getage(p) == G_OLD1) {
      lua_assert(!iswhite(p));
      changeage(p, G_OLD1, G_OLD);  /* now they are old */
      if (isblack(p))
        reallymarkobject(g, p);
    }
  }
}


/*