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Re: ctype bug

From: "Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>
Date: Wed, 6 Jul 2005 10:24:04 +0200

Lately Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx> said:

>     Whoops, we have a problem with the ctype code... it is not properly
>     folding negative integers (i.e. when a signed char is passed to 
>     an is*() function).
>     The is*() functions are returning non-zero for all negative numbers,
>     which is wrong.

uhm, actually not... I was confused as well, but it was my utf-8 xterm
playing tricks on me. If you look close, the program just outputs
printable chars (at least on syscons), it skips some in between.
I don't get the system. As soon as you assign the int to any char
(signed, unsigned, plain) and pass this char, the negative numbers
are not shown.


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