Re: tolower()/islower() and char

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

> In all cases the argument is an int, the value of which shall be
> representable as an unsigned char or shall equal the value of the
> macro EOF.

Which, if you think about it, makes sense.  Otherwise, if EOF's value
is in range for signed char, that argument value would be ambiguous -
and EOF is usually -1.

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