Function lua_next

3rdparty/lua/plainlua/lapi.c:1253–1267

LUA_API int lua_next (lua_State *L, int idx) {
  Table *t;
  int more;
  lua_lock(L);
  api_checknelems(L, 1);
  t = gettable(L, idx);
  more = luaH_next(L, t, L->top.p - 1);
  if (more) {
    api_incr_top(L);
  }
  else  /* no more elements */
    L->top.p -= 1;  /* remove key */
  lua_unlock(L);
  return more;
}


LUA_API void lua_toclose (lua_State *L, int idx) {