lua_getfield(L, LUA_GLOBALSINDEX, "debug.traceback");

[CHU Run-min <churunmin@...>]

lua_getfield(L, LUA_GLOBALSINDEX,          "debug.traceback"      );

Is it equivalent to the following code?

  lua_getfield(L, LUA_GLOBALSINDEX, "debug");
  if (lua_istable(L, -1)) {
    lua_getfield(L, -1, "traceback");
    lua_remove(L, -2);
  }