>> It doesn't have these checks because it's supposed to be fast;
>> that's why all the <ctype.h> functions have undefined behavior for
>> things outside the "standard" range.
> so why the int argument, instead of char?

For the same reason getchar() returns int rather than char: because the
actual range of values is "any value representible as an unsigned char,
or EOF".

I don't know what's done by implementations where int and char are the
same size.  seebs? :)

					der Mouse

			       mouse@rodents.montreal.qc.ca
		     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B