>> No. RS6000 has `char' unsigned by default as well. You can use
>> -fsigned-char to force the other behaviour, but there will be a performance
>> hit if you do this. It's usually better to fix the code.
>
>Surely if signedness is important for a char (and it usually isn't), you
>can use a signed char?
Yes, of course. The -fsigned-char option is useful if you have large amounts
of dusty-deck code with this problem and want a quick fix to get it working,
but it is definitely not a good solution in general.
p.
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