Hi,

On Wed, Feb 4, 2015 at 6:20 AM, Emmanuele Bassi <eba...@gmail.com> wrote:
> hi;
>
> On 4 February 2015 at 03:19, Daniel Kasak <d.j.kasak...@gmail.com> wrote:
>> Hi all.
>>
>> One of the things that became more difficult with the move to
>> introspection-based bindings was figuring out what caused some error
>> messages. For example:
>>
>> (main.pl:25925): Gtk-CRITICAL **: gtk_list_store_get_value: assertion
>> 'column < priv->n_columns' failed
>> *** unhandled exception in callback:
>> ***   [gperl_sv_from_value] FIXME: unhandled type - 0 ((null) fundamental
>> for (null))
>> ***  ignoring at /usr/local/lib64/perl5/5.20.1/Gtk3.pm line 318.
>>
>> Luckily for me, I know precisely what caused this error, because I just
>> changed some code in the area. If I'd just triggered a rare bug that I'd
>> introduced a while back, I'd be absolutely lost as to *where* in the code
>> this was happening. Is there any way of triggering a full stack trace on
>> these kinds of errors?
>
> $ export G_DEBUG=fatal-criticals
> $ gdb --args perl your-app.pl
>
> then, when the critical warning happens, use `bt` to get the backtrace
> of the error.
>
> you can also use a breakpoint on the `g_logv` function.

When, a while back, I mentioned that I'd love you guys to post
pro-tips on the Twitter account...

THAT right there is definetely something I'd like to see appear there.

Have a nice day,

-Pascal
-- 
Homepage (http://organact.mine.nu)
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COMunité/LACIME: École de technologie supérieure (http://www.comunite.ca)
ISIP Laboratory: McGill (http://www.isip.ece.mcgill.ca)
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