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CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C and C++

LANG.STRUCT.NVNR : Non-void noreturn

要旨

A function or method has non-void return type, but is declared with one of the following.

Warnings of this class are issued at the function definition location. No warnings are issued for function declarations that have no corresponding definition.

プロパティ

クラス名 Non-void noreturn
日本語クラス名 Non-void noreturn
クラス分類 信頼性 (reliability)
ニーモニック LANG.STRUCT.NVNR
カテゴリー
MisraC2025 MisraC2025:17.10 A function declared with a _Noreturn function specifier shall have void return type
MisraC2023 MisraC2023:17.10 A function declared with a _Noreturn function specifier shall have void return type
Misra2012 Misra2012:17.10 A function declared with a _Noreturn function specifier shall have void return type
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="Non-void noreturn"

例 

#include <stdnoreturn.h>
#include <stdlib.h>
typedef void myvoid;

_Noreturn int bad_noretA(void);          /* warning is issued at the bad_noretA() definition */

_Noreturn int bad_noretA(void){ /* 'Non-void noreturn' warning issued here */
    abort();
}

noreturn int bad_noretB(void){ /* 'Non-void noreturn' warning issued here
                                * - macro noreturn is defined to _Noreturn in stdnoreturn.h
                                */
    abort();
}

_Noreturn int noret_declonly(void);      /* no warning issued: noret_declonly() is never defined */

_Noreturn myvoid good_noret(void){       /* ok: return type is a typedef of void */
    abort();
}

int normal_ret(void){                    /* ok: function returns normally */
    return 1;
}

関連のある設定ファイルパラメータ

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。

 

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