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

LANG.STRUCT.EXCP.ITHROW : Inappropriate throw in noexcept Function

要旨

A noexcept function throws an exception.

プロパティ

クラス名 Inappropriate throw in noexcept Function
日本語クラス名 Inappropriate throw in noexcept Function
クラス分類 信頼性 (reliability)
ニーモニック LANG.STRUCT.EXCP.ITHROW
カテゴリー
AUTOSARC++14 AUTOSARC++14:A15-4-2 If a function is declared to be noexcept, noexcept(true) or noexcept(<true condition>), then it shall not exit with an exception.
  AUTOSARC++14:A15-4-4 A declaration of non-throwing function shall contain noexcept specification.
  AUTOSARC++14:A18-5-9 Custom implementations of dynamic memory allocation and deallocation functions shall meet the semantic requirements specified in the corresponding "Required behaviour" clause from the C++ Standard.
MisraC++2023 MisraC++2023:18.5.1 A noexcept function should not attempt to propagate an exception to the calling function
CERT-CPP CERT-CPP:MEM55-CPP Honor replacement dynamic storage management requirements
JSF++ JSF++:208 C++ exceptions shall not be used (i.e. throw, catch and try shall not be used.)
対応言語 C++ のみ利用可能です。 C は利用できません。
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おり、プロジェクトには非正規の C向けAST が必要になります。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 ルールと RETAIN_UNNORMALIZED_C_AST 設定を追加してください。 
RETAIN_UNNORMALIZED_C_AST = Yes
WARNING_FILTER += allow class="Inappropriate throw in noexcept Function"
注：非正規化された AST を継続して使用した場合、使用ディスク容量が増加し解析時間が長くなる可能性があります。

例 

#include <new>
#include <stdexcept>

extern bool my_free(void *ptr);

void operator delete(void* ptr) noexcept { // 'Inappropriate throw in noexcept Function' warning issued here
    if (my_free(ptr))
        throw std::bad_alloc();                                     // operator delete() should never throw exceptions
}

int f(int i) noexcept {                    // 'Inappropriate throw in noexcept Function' warning issued here
    if (!i){
        throw std::invalid_argument("f() called on 0");
    }
    return i;
}

int g(int i) noexcept {                                       // declared noexcept, does not throw any exceptions
    return i;
}

int h(int i) {                                                // not declared noexcept, throws std::invalid_argument
    if (!i){
        throw std::invalid_argument("h() called on 0");
    }
    return i;
}

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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