[Qt-interest] Crashing without debug mode- No crashing with gdb debugger

[Malyushytsky, Alex]

90% of the problems with code which does behave ok during debugging and does not in release
are related to initialization.
In your code actual_page_width ,coordx,coordy look as possible candidates which may bring the problem up.

In any case  you can count to get help with such problems only if you provide minimal example which can be built and executed.
If you don't there are endless variation of possible bugs and nobody without of power of god can predict where is yours.


Alex

From: qt-interest-bounces+alex=wai.com at qt.nokia.com [mailto:qt-interest-bounces+alex=wai.com at qt.nokia.com] On Behalf Of Sujan Dasmahapatra
Sent: Monday, February 07, 2011 1:25 PM
To: qt-interest at trolltech.com
Subject: [Qt-interest] Crashing without debug mode- No crashing with gdb debugger


Dear All
I am facing some problem in implementing a QScrollArea. I  subclassed it and created a buttin on this as below.

CScrollArea::CScrollArea() {
printbutton = new QPushButton("Save As Image",this);
printbutton->setGeometry(actual_page_width + coordx-100,coordy,100,25);
connect(printbutton,SIGNAL(clicked()),this,SLOT(gotoprinter()));
}

the problem is that when I am trying show this scrollarea through menu click its crashing. and crashing at the first line
printbutton = new QPushButton("Save As Image",this);

but when I am debugging this through gdb debugger then its running fine and at the end i can see the scroll are with button.

Why is happening like this. Any idea from anyone would be highly appreciate.
Also when I try to set a window title like
setWindowTitle("My Page");
its again crashing.
Thanks in advance for any help. sujan


Kind Regards,


Sujan Dasmahapatra
Project Leader, Aero Group
Aero Group
Tel    +91 80 66470248
Mob
sdh at lmwindpower.com<mailto:%25EMAIL%25>

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