LANG.PREPROC.IFDEF : Use of #ifdef

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A use of the #ifdef preprocessor directive.

Many coding standards forbid the use of #ifdef because it makes code harder for human readers to understand.

クラス名

Use of #ifdef

日本語クラス名

Use of #ifdef

クラス分類

スタイル (style)

ニーモニック

LANG.PREPROC.IFDEF

カテゴリー

AUTOSARC++14	AUTOSARC++14:A16-0-1	The pre-processor shall only be used for unconditional and conditional file inclusion and include guards, and using the following directives: (1) #ifndef, (2) #ifdef, (3) #if, (4) #if defined, (5) #elif, (6) #else, (7) #define, (8) #endif, (9) #include.
CWE	CWE:1076	Insufficient Adherence to Expected Conventions
JSF++	JSF++:26	Only the following pre-processor directives shall be used: #ifndef, #define, #endif, #include.
POW10	POW10:8	Limit the use of the preprocessor to file inclusion and simple macros.

対応言語

C および 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無効になっています。チェックを有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 += allow class="Use of #ifdef"

#ifdef ONE /* 'Use of #ifdef' warning issued here */
int one;
#endif              /* ('Use of #endif' warning issued here if enabled) */

設定ファイルの以下のパラメータがこのワーニングクラスのチェックに影響します。

LANG.PREPROC.IFDEF : Use of #ifdef

要旨

プロパティ

例

関連のある設定ファイルパラメータ