O3 versus O2 weirdness

[Bartlomiej Dolata]

Hi Eljay and thanks for the answer.

>
>>   char komb[13];
>
> The buffer isn't large enough to hold the output, so the output 
overflows
> and (probably) overwrites something important.
>

That buffer you pointed at was not the culprit of the problem (I increased
it to 64 and the program still had erratic behaviour), but it pointed me
into a right direction.

The problem was atoi function call:

..
  char c;
..
l=atoi(&c);
..

when I changed it to:

..
  char c[2]="";
..
  c[0]=konfig[i];
  l=atoi(c);
..

It seems to work fine.

I know it is my programming error (atoi manpage states it takes a string 
as input), but isnt there really a way of detecting such ?

This was particularly easy sample but chasing such bugs in a big code
can be a really painful task...

Thanks,
B