Re: module/time.c violates aliasing rules

[Eric Blake]

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According to Eric Blake on 6/8/2006 7:14 AM:
> Andreas Schwab <schwab <at> suse.de> writes:
> 
>> modules/time.c: In function 'builtin_ctime':
>> modules/time.c:100: warning: dereferencing type-punned pointer will break
> strict-aliasing rules
>> This is guaranteed to fail on bigendian hosts with time_t > int.
> 
> Thanks for the report.  This patch is probably small enough to apply, but 
> would
> you be willing to fill out copyright assignment for future patches?  This,
> combined with your previous submissions, is starting to become non-trivial.
> 
>> 2006-06-05  Andreas Schwab  <schwab <at> suse.de>
>>
>>      * modules/time.c (ctime): Pass correctly typed variable to
>>      m4_numeric_arg.
>>      (gmtime): Likewise.
>>      (localtime): Likewise.
>>      (strftime): Likewise.
> 

Applied, plus a documentation tweak to m4/utility.c explaining the
arbitrary limitation.  I want to pull in gnulib's xstrtoimax to fix the
real issue that you identified, namely that m4 is arbitrarily limiting
parsed integer input, but that will take more time.

- --
Life is short - so eat dessert first!

Eric Blake             address@hidden
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