CSHARP.STRUCT.BW.ORI : Inefficient Bitwise OR (C#)

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CSHARP.STRUCT.BW.ORI : Inefficient Bitwise OR (C#)

要旨

|| should be used instead of | for better efficiency.

C# has a bitwise and a logical-AND operation on Booleans, that is, & and &&. Similarly, C# has a bitwise and a logical-OR operation | and ||. The difference is that the logical operations have a short circuit semantics, that is, if the evaluation of the left-hand side is enough to determine the outcome of the operation, then the right-hand side is not evaluated; the bitwise operations, instead, evaluate both sides, always, which might be incorrect is most cases, or at least inefficient.

プロパティ

クラス名

Inefficient Bitwise OR (C#)

日本語クラス名

Inefficient Bitwise OR (C#)

クラス分類

信頼性 (reliability)

ニーモニック

CSHARP.STRUCT.BW.ORI

カテゴリー

CWE	CWE:480	Use of Incorrect Operator

対応言語

C# で利用可能です。

有効/無効設定

このワーニングクラスのチェックはデフォルトで有効になっています。チェックを無効にするにはプロジェクト設定ファイル（configuration file）に以下の WARNING_FILTER ルールを追加してください。

WARNING_FILTER += discard class="Inefficient Bitwise OR (C#)"

解決法

Use the logical (short-circuit) version of the operators on Booleans.

CSHARP.STRUCT.BW.ORI : Inefficient Bitwise OR (C#)

要旨

プロパティ

解決法

関連のある設定ファイルパラメータ