QObject::disconnect: Unexpected null parameter

[mut]

Hi;

Why m I receiving this warning;

QObject::disconnect: Unexpected null parameter

with this code:

// First disconnect:
ok = QObject::disconnect(m_reply, SIGNAL(finished()), this, SLOT(onFinished()));

// then clear the pointer
m_reply = NULL;

Thanks in advance.

Mut.

[newcfd]

Hi;

Why m I receiving this warning;

QObject::disconnect: Unexpected null parameter

with this code:

// First disconnect:
ok = QObject::disconnect(m_reply, SIGNAL(finished()), this, SLOT(onFinished()));

// then clear the pointer
m_reply = NULL;

Thanks in advance.

Mut.

check if m_reply is NULL before
ok = QObject::disconnect(m_reply, SIGNAL(finished()), this, SLOT(onFinished()));

and not?
// then clear the pointer
delete m_reply;
m_reply = NULL;

[anda_skoa]

And don't use NULL.

Either use 0, Q_NULLPTR or nullptr.

This is C++, not C :-)

Cheers,
_