[libposix-development] Remarks about ctype support

[Henrique A. <hd...@gm...>]

 I think we can't assume that the character set is ASCII compatible.
We probably could restrict which character sets we'd allow, but
there's at least one Unix vendor/user (IBM) that probably won't accept
that. A safer implementation is the trivial case 'A': case 'B': case
'C': etc. (the compiler must optimize those in ASCII systems). Refer
to:

 http://www.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap06.html

 I think the only possible assumptions about the portable character
set are that '0' to '9' are sequential and that '\0' == 0.

-- 
 Henrique Dante de Almeida
 hd...@gm...