I have strange behaviour while using an array of QTextEdit widgets.

[emp1953]

I have implemented an array of QTextEdit boxes as follows:

QTextEdit* ntr_array[45];

ntr_array[1] = ui->textEdit_1;

I have a std::vector std::stringmyvector containing 45 text words of type std::string

Then I do this

Qstring tempstr = QString::fromStdString(myvector[1]);
ntr_array[1]->setText(tempstr);

This compiles and when executed will seg fault at the last line: ntr_array[1]->setText(tempstr);

I've tried substituting
ui->textEdit_1->setText(tempstr);

It still seg faults on this line.

I am using QT 4.8
QtCreator 3.2.2
on linux Fedora.

Thanks for any help

[mpergand]

Run the debugger !
However, ui->textEdit_1; looks like an invalid pointer ...

[emp1953]

The editor auto finishes the ui->textEdit_1 line so the editor thinks it is valid. What should I look for in the debugger when I set the breakpoint at the line it seg faults at and it stops there??

[JonB]

@emp1953
You could try putting ui->textEdit_1 into the debugger's Watch window and having a look at what seems to be in it.

I assume you created that in the designer. Have you done the ui->setupUi() call in your code? Make sure you have done a full rebuild.

[emp1953]

Yes ui->setup() happens
nutr[2] has a big hex number that looks like a pointer.

I did a qmake on the .pro file and got a Makefile.
Did a 'make clean; make' now all is good. Apparently the clean function in qtCreator doesn't really function as advertised

Thanks for the help