Re: Some leftover bugs for this release

[Andy Wingo <wingo@pobox.com>]

Hi,

On Wed 16 Sep 2009 11:09, ludo@gnu.org (Ludovic Courtès) writes:

>>> > 100 SCM
>>> > 101 scm_array_handle_element_type (scm_t_array_handle *h)
>>> > 102 {
>>> > 103 
>>>   if (h->element_type < 0 || h->element_type > SCM_ARRAY_ELEMENT_TYPE_LAST)
>>> > 104     abort (); /* guile programming error */
>>> > 105   return scm_i_array_element_types[h->element_type];
>>> > 106 }
>>> 
>>> Hmm, an enum variable can possibly hold any integer value, so why would
>>> this always be true?  Are you actually hitting this?
>
> [...]
>
>> So when I enable -Wtype-limits on my build, it warns for any enum
>> value that is beyond those enumerated in the type definition.  The 
>> smallest value in this enum is zero, hence the warning.
>
> Then we could just use ‘-Wtype-limits’ and remove the above run-time
> check.  Andy?

The struct could get corrupted somehow of course. It's not a bad check,
but the typechecker is working against us :P

Andy
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