Why a warning on this line?

SPlatten

In this class method:

QStringList clsScriptHelper::slstJSON(const void* cpJson
                                     ,const QJsonValue::Type cType
                                     ,QString strRef
                                     ,uint8_t uint8Level
                                     ,uint8_t* puint8MaxLength) {
    QStringList slstKeys, slstResult;
    const QJsonArray* cparyJSON;
    const QJsonObject* cpobjJSON;
    int intSize;
    if ( cType == QJsonValue::Array ) {
        cparyJSON = static_cast<const QJsonArray*>(cpJson);
        cpobjJSON = nullptr;
        intSize = cparyJSON->size();
    }
    if ( cType == QJsonValue::Object ) {
        cparyJSON = nullptr;
        cpobjJSON = static_cast<const QJsonObject*>(cpJson);
        slstKeys = cpobjJSON->keys();
        intSize = slstKeys.size();
    }
    if ( cparyJSON == nullptr && cpobjJSON == nullptr ) {
    //Invalid type, do nothing
        return slstResult;
    }

On the line:

    if ( cparyJSON == nullptr && cpobjJSON == nullptr ) {

There is a yellow background and message to the right:

The left operand of '==' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]

What does mean? I can't see anything wrong with the code itself.

jsulm

@SPlatten said in Why a warning on this line?:

const QJsonArray* cparyJSON;

Because this pointer is not initialized and thus contains garbage (if none of the other if blocks is executed).
You should always initialize pointers when you declare them.

SPlatten

Thank you.

SPlatten

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