>>>>> On Tue, 4 Mar 1997 16:12:44 -0500 (EST),
	der Mouse  <mouse@Rodents.Montreal.QC.CA> said:

> though I _think_ the ctype functions are not defined if the argument
> is other than an unsigned char cast to int, or EOF.

This is true. 
So, from the point of view of C language standard, it is the error of
the program which relies on undefined behaviour, rather than error of
ctype function implementation.
--
soda@sra.co.jp		Software Research Associates, Inc., Japan
(Noriyuki Soda)		   software tools and technology group