Function fileerror

deps/lua/src/liolib.c:48–51

static void fileerror (lua_State *L, int arg, const char *filename) {
  lua_pushfstring(L, "%s: %s", filename, strerror(errno));
  luaL_argerror(L, arg, lua_tostring(L, -1));
}


#define tofilep(L)	((FILE **)luaL_checkudata(L, 1, LUA_FILEHANDLE))