Re: GTK Widget assertion problem

[Michael T. <myso77 seznam cz>]

Hi,
 thank you all for input.
> Le 10/06/2010, Shawn Bakhtiar <shashaness hotmail com> a écrit :
> > 2.2) There is probably a memory leak somewhere. Where the structure of
> > the application (the compiled code) puts that pointer outside the
> > reach of the overflow so when you re-wrote it, it magically worked
> > (voodoo appearing indeed).
> I agree on this explanation. To help you try to find out, may I suggest
> the following:
> - `grep -R progBar src`, I don't believe you will find the issue with
> this, especially if iy's a stack issue, but it's a starting point to
> check basic issues.
> - compile your code with -Wall and -Werror if possible, to hunt all
> writing code mistakes.
> - remove the voodoo function, it *must* run without it.
> - add a fprintf(stderr, "------> %p\n", (gpointer)progBar); after the
> initialisation and add one before the failing call to check your
> pointer has not been changed somewhere.
> - add regular g_return_if_fail(IS_GTK_WIDGET(progBar)); at each line
> between the initialisation and the failing call to spot where the stack
> issue may happen. Of course writing all of this may change the bug if
> it's a stack issue but it may help you.

Thank you, Damien. This has been the most constructive input.
However, I woke up this morning, simply removed the voodoo hack and the thing works!!
I don't understand it at all. I haven't changed one bit of the GTK+ code. I just woke up, read the emails 
from you guys. Started to mess around with the voodoo stack hack, removed it and the thing works just as all 
the other widgets.
I haven't got a clue why it is so. I'm using MinGW on Windows and I often hibernate the computer, maybe it 
was just a bug in the hibernation recovery and it somehow influenced the stack issues. I don't know. It's 
totally weird. Or maybe it was some local linking compiler error, since the app is using more files. I don't 
get it, cause I didn't even compile all the files, just used the makefile to recompile the particular file 
that takes care of the GTK+ layout. Well, anywayz, thanks for your thoughts. The voodoo is gone just as it 
came, maybe the warlock died : ).

Michael