Program loops at one line

[wysota]

Change your code to the following:

void ClassC::protocolList(QList<Protocol*> **list)
{
    qDebug() << Q_FUNC_INFO << "Enter";
    (*list) = this->mProtocolList;
    qDebug() << Q_FUNC_INFO << "Leave";
}

void ClassC::protocolList(QList<Protocol*> **list)
{
    qDebug() << Q_FUNC_INFO << "Enter";
    (*list) = this->mProtocolList;
    qDebug() << Q_FUNC_INFO << "Leave";
}

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And run your program without a debugger. See if the statements get printed properly. Maybe there is some problem with the debugger itself (Qt Creator is known to work not very well with MSVC debugger).