Qt6Core Assert fail on array copy...

Dariusz

Hey

Welp this is fun one.

Im trying to copy void handleData(const QVector<QSharedPointer<myClass>>&myitems) in to a struct that gets added to a vector, like > vector.append({10,20,myItems} and I get this error :

ASSERT: "dp.freeSpaceAtEnd() >= n" in file C:\Qt\6.2.1\msvc2019_64\include\QtCore/qarraydatapointer.h, line 233

It's save to say I have no idea what to do o.o. I never had anything like that before.

Any1, any hints?

TIA

Update.
I cant even do vector.append({10,20,{}}); o.o

ChrisW67

How is vector declared and what does the code that generates the exception actually look like?

You debugger backtrace should tell exactly which line of your source code triggered the error.

Dariusz

@ChrisW67 said in Qt6Core Assert fail on array copy...:

How is vector declared and what does the code that generates the exception actually look like?

You debugger backtrace should tell exactly which line of your source code triggered the error.

Yeh, that what normally happens. This one is odd aff!

H.

class someObject : public QObject{
Q_OBJECT
struct helperData{
     int s;
     int d;
     QVector<QSharedPointer<objectX>> itemList;
}
QVector<helperData> mHelpers;

then cpp.

mHelpers.append(helperData{0,0,{}});

And here is the error. I'm a bit like O.O

It even happens with std::vector O.O what the heee....

Dariusz

Ok I found it.

This is bananas o.o.

Here is a rough example of what is breaking my c++, I even replaced mHelpers with QVector<int> and that was breaking too.
Essentially I have

public header.h : inherits baseHeader(public) class
private headerPrivate.h : inherits baseHeaderPrivate class

and I made headerPrivate :public QObject, public baseHeaderPrivate {}& Q_OBJECT macro.
Now for some reason that has broken down my members/other objects. No idea why, maybe because I have Private in name? OR what/why? No clue. I removed QObject/Macro and vectors started to work O.O
Seem that having it only as QObject without macro can cause it to go bananas.

I'm working on public/private api of my own app & using QBjects where I need to. I never before used QObject on my private header tho before. So this is new and WEIRD. Any hints/ideas?
Hmmm maybe coz my private header could use similar member/function declaration as to QT ones, I have to dig in to qt macros maybe I'm overriding some members there & causing it all to go bananas o.o

TIA

Christian Ehrlicher

Provide a minimal, compilable example where it crashes - everything else is just guessing.