LANG.STRUCT.DECL.SAU : Specialization after Use

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CodeSonar^® 9.2p0

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C and C++

LANG.STRUCT.DECL.SAU : Specialization after Use

要旨

A template is fully or partially specialized after it has already been used.

プロパティ

クラス名

Specialization after Use

日本語クラス名

Specialization after Use

クラス分類

信頼性 (reliability)

ニーモニック

LANG.STRUCT.DECL.SAU

カテゴリー

JSF++	JSF++:104	A template specialization shall be declared before its use.

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

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="Specialization after Use"

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

WARNING_FILTER += discard class="Specialization after Use"

例

template <class T>
class List {
};

List<int *> intlist;

// This class declaration will cause an error in some compilers, such as C++17 compilers.
// We guard it with "#ifdef __CODESONAR__ ... #endif" so that it
// is preprocessed out by the native compiler (so the example can be compiled)
// but still observed by the CodeSonar analysis.
#ifdef __CODESONAR__
template <class T>
class List<T *> { // 'Specialization after Use' warning issued here
};
#endif

template <class T>
class Group {
};

template <class T>
class Group<T *> {             // ok: partial specialization occurs before use
};

Group<int *> intgroup;

LANG.STRUCT.DECL.SAU : Specialization after Use

要旨

プロパティ

例

関連のある設定ファイルパラメータ