CTRL(x) macro (was: Re: What is a constant expression)

[Karl Heuer]

In article <1422 at crdos1.crd.ge.COM> davidsen at crdos1.UUCP (bill davidsen) writes:
>control characters ... are defined as the values from 00-37 octal...

That definition may have been the original one, but as far as C is concerned
the only definition of `control character' is `what iscntrl() tests for' --
and this does include DEL on ASCII systems.

Karl W. Z. Heuer (ima!haddock!karl or karl at haddock.isc.com), The Walking Lint