[Solved] QtCreator skips breakpoints despite debug build

dispy

Hi,

QtCreator seems to skip my breakpoints in some cases.
I subclassed QWidget and overwrote its paintEvent method:
@void Fractal::paintEvent(QPaintEvent *event){
double x = (double) this->width();
double y = (double)this->height();

points.reserve(x * y); // this is a std::vector<Point>

complex middle = 0;       // typedef std::complex<double>
complex left_top = -3 + 3i;
complex right_bottom = 3 - 3i;

double steps = 100;
complex realDir = real(right_bottom - left_top) / steps;

double  reprDir = x / steps;
 QPainter *painter = new QPainter(this);
painter->setBrush(QBrush("#000000"));

[...]@
He won't stop at my breakpoint at "double reprDir =". But if I add a "return;" directly after that, or after the QPainter, the breakpoint works like a charm. If I add the return after "painter->setBrush" it again won't work.

It's not that the code isn't executed - I placed some outputs on std::cout all over the code and they show up indeed.
bq. Linux MadeToWork 3.2.0-53-generic-pae #81-Ubuntu SMP Thu Aug 22 21:23:47 UTC 2013 i686 athlon i386 GNU/Linux
QTCreator 2.4.1 Based on Qt 4.8.0 32Bit Built on March 21 2012
GNU gdb 6.8

Thanks in advance!

Regards,

EDIT: Apparently, I'm not the only one affected by this problem: http://qtcreator.blogspot.de/2009/10/breakpoint-woes.html
That's old but also with my QtCreator the hourglass does not disappear when debugging is started.

andrep

GDB 6.8 has not been supported for ages (even if it probably should work).
IIRC, 7.0.1 was already minimum for Qt Creator 2.0.

Once you can reproduce the problem with a more recent version, say 7.4 or newer, open a bug report at bugreports.qt-project.org and attach the debuger log of the failing case there (Windows->Views ->Debugger Log)

dispy

Thank you for your reply.
Being curious why I hadn't had the newest gdb version I took a look at the package - and it claimed to be 7.4. Indeed, one way or another the old 6.8 version was still in /usr/local/bin/gdb. Some application or another must have overwritten that one. I created a symlink to /usr/bin/gdb (7.4) and everything works fine now.

Thank you very much for your assistance. You saved my day ;-).