Re: gtk_widget_destroy

[David Nečas (Yeti) <yeti physics muni cz>]

On Mon, Nov 20, 2006 at 02:18:53PM +0530, Shyjumon N. wrote:
>    Can any body help me to find out why i am getting 
> segmentation fault for the following code.

Because you never assign anything to windowa, so it is NULL
when you test its state.

Now, how you can find that out yourself in 10 seconds
instead of writing e-mails to mailing lists:

1. compile it with -ggdb gcc option

(Since you always use -ggdb during development, no action
is necessary.)

2. ulimit -c unlimited

(Since you always have this set during development, no
action is necessary.)

3. run it
toggling to window b
Segmentation fault (core dumped)

(Since you have already done this, no action is necessary.)

4. gdb HOW-IS-THE-EXECUTABLE-CALLED core

5. (gdb) backtrace
Program terminated with signal 11, Segmentation fault.
#0  0x000000000040144c in main (argc=1, argv=0x7fffa0ead448) at z.c:119
119	  if (GTK_WIDGET_STATE (windowa) == GTK_STATE_NORMAL)

So what's wrong with windowa?

6. (gdb) print windowa
$1 = (GtkWidget *) 0x0

It's NULL.

Was it that hard? Bloody no.

Yeti


--
Whatever.