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yohhoy avatar yohhoy commented on July 25, 2024

修正素案です:

派生クラスで仮想関数の挙動を変更することをオーバーライドといいます。 派生クラスでオーバライドを行うには、仮想関数シグニチャ(引数の型やconst修飾の有無)を厳密一致させる必要があります。オーバーライドであることを明確化するため派生クラスのメンバ関数に override 明示が推奨されます。


override は「プログラマのミスや基底クラスの仕様変更により、関数シグニチャが厳密一致しないためオーバーライドに失敗する」事故を防ぐために導入された仕組みです。このような導入経緯に参考言及してもよいかもしれませんね。

from cpp-book.

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