Function lua_tothread

third-party/lua-5.3.5/src/lapi.c:423–426

LUA_API lua_State *lua_tothread (lua_State *L, int idx) {
  StkId o = index2addr(L, idx);
  return (!ttisthread(o)) ? NULL : thvalue(o);
}


LUA_API const void *lua_topointer (lua_State *L, int idx) {