Add a warning example
Add a warning example

zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend,zettsu-t/cPlusPlusFriend