[FFmpeg-devel] [PATCH] configure's to_lower and to_upper fix on *bsd

[Måns Rullgård]

Rich Felker <dalias at aerifal.cx> writes:

> On Mon, Feb 11, 2008 at 10:51:55PM +0000, M?ns Rullg?rd wrote:
>> Rich Felker <dalias at aerifal.cx> writes:
>> 
>> > On Mon, Feb 11, 2008 at 10:01:04PM +0000, M?ns Rullg?rd wrote:
>> >> Pierre d'Herbemont <pdherbemont at free.fr> writes:
>> >> 
>> >> > Hi,
>> >> >
>> >> > here, on Mac OS X, (should be a BSD issue):
>> >> > $ echo "hello z" | tr '[a-z]' '[A-Z]'
>> >> > HELLO ]
>> >> 
>> >> Unable to reproduce on Linux/glibc or OSX, even using a French
>> >> locale.  Do you have some very unusual settings?  Could you please
>> >> post the output of the "env" command?
>> >
>> > The inability to reproduce a bug is irrelevant when the cause of the
>> > bug is reliance on unspecified/undefined behavior.
>> 
>> True, but I'd still like to understand what's going on.
>
> Range expressions simply have unspecified behavior except in the POSIX
> locale. Actually, for the purposes of tr, range expressions with octal
> escapes are well-defined, so that \101-\132 and \141-\172 would be
> valid.

Fine, but I'd still like to see the alleged behaviour in action.

-- 
M?ns Rullg?rd
mans at mansr.com