Strange Error message

Dn588

Hi all

I am getting a strange error message i've never seen before when trying to run the below program.

error message:
in copy constructor 'staff::staff(const staff&)'

'QObject::QObject(const QObject)' is private within this context

my code:
https://www.dropbox.com/sh/wowwansg38mortr/AAD8o15lr1paOb7SJyUC73RMa?dl=0

I understand that private member functions can only be called from the same class but not sure what that means in this instance. Am I calling the copy constructor of staff somewhere I shouldn't be calling it from?

Thanks

Deon

dheerendra

Looks like you are passing some object by value. Since copy constructor is disabled. Try passing reference.

Dn588

Hi Dheerendra there was a constructor in the staffList class where I passed a staff object. I fixed that but still no luck. i've gone over everything a few times and don't see any other functions with objects in their parameter list... Is there any way to see where this issue is coming from? When I click on the error message it opens QObject.h which doesn't help much...

dheerendra

Just try clean once, run qmake and rebuild. If you still face the issue, drop me the code. I will check and revert quickly.

Dn588

Tried that but still no change...
Thanks for taking a look

my code:

https://www.dropbox.com/sh/qkujdbs0trjksvq/AADEV3y0xMyQ__WyP6IkzLOha?dl=0

SGaist

Hi,

You can't copy QObject derived class so addToList should have a pointer to staff as parameter

Dn588

Thanks a lot SGaist

I now get another error I don't understand...

error: expected unqualified-id before if'

At the code:

@
QFile file("staff.txt");

if (!file.open(QIODevice:: WriteOnly | QIODevice:: Text))
return;
@

SGaist

Is this code located in a function ?

Dn588

No it's not could that be it?

SGaist

You can't write code freely anywhere in a file in C/C++ It needs to be inside a function/method.

Dn588

Thanks I moved it into a function. now i'm getting an error invalid conversion from int to char* in the following function @QString staff::toString() {
return QString("Name: %1 \n Birth Date: %2 \n Staff Type: %3 \n \n").arg(s_name).arg(s_birthDate.toString('yyyyMMdd').arg(getTypeString()));
}@

there's no int in this function though? Could it be the enum s_type? I created a function getTypeString @
staff::getTypeString() {
return property("Type").toString();
}
that's supposed to return a QString...

SGaist

The only error I see currently is that you have a misplace arg. You attached your third parameter to the s_birthDate.toString call

Dn588

So should the parameters start at %0?

SGaist

Nop, that part is fine

Dn588

which third parameter did I attach to s_birthDate.toString()?

SGaist

@
QString("Name: %1 \n Birth Date: %2 \n Staff Type: %3 \n \n")
.arg(s_name) << correct
.arg(s_birthDate.toString('yyyyMMdd').arg(getTypeString() << arg of toString rather than arg for QString()
@