Function io_tmpfile

lib/lua/src/liolib.c:303–308

static int io_tmpfile (lua_State *L) {
  LStream *p = newfile(L);
  errno = 0;
  p->f = tmpfile();
  return (p->f == NULL) ? luaL_fileresult(L, 0, NULL) : 1;
}


static FILE *getiofile (lua_State *L, const char *findex) {