PARSE.ZLBFMBU : Zero Length Bit Field Must Be Unnamed

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CodeSonar^® 9.2p0

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CodeSecure Inc

C and C++

PARSE.ZLBFMBU : Zero Length Bit Field Must Be Unnamed

要旨

A zero-length bit-field is defined with a name.

This warning class is derived from a C/C++ parser warning.

プロパティ

クラス名

Zero Length Bit Field Must Be Unnamed

日本語クラス名

Zero Length Bit Field Must Be Unnamed

クラス分類

スタイル (style)

ニーモニック

PARSE.ZLBFMBU

カテゴリー

Misra2004	Misra2004:6.5	Bit fields of signed type shall be at least 2 bits long
AUTOSARC++14	AUTOSARC++14:M9-6-4	Named bit-fields with signed integer type shall have a length of more than one bit.
MisraC++2008	MisraC++2008:9-6-4	Named bit-fields with signed integer type shall have a length of more than one bit.
MisraC++2023	MisraC++2023:12.2.1	Bit fields should not be declared

対応言語

C および C++ で利用可能です。

有効/無効設定

Checks for this warning class are enabled by default. However, warning instances of this class that are issued as parser errors (rather than parser warnings) will be discarded when using factory configuration settings. To prevent these instances from being discarded, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += allow class="Zero Length Bit Field Must Be Unnamed"

To disable checks for this warning class, add the following WARNING_FILTER rule to the project configuration file.

WARNING_FILTER += discard class="Zero Length Bit Field Must Be Unnamed"

例

struct bad{
    char c;
    int empty : 0; /* 'Zero Length Bit Field Must Be Unnamed' warning issued here */
    int flags : 16;               /* not zero-width */
};

struct good{
    char c;
    int: 0;                      /* not named */
    int flags : 16;              /* not zero-width */
};

PARSE.ZLBFMBU : Zero Length Bit Field Must Be Unnamed

要旨

プロパティ

例

関連のある設定ファイルパラメータ