ANSI C token set (including $ and @)

[Doug Gwyn]

In article <1989Jan20.175532.7447 at utzoo.uucp> henry at utzoo.uucp (Henry Spencer) writes:
>>No, it isn't.  Use of the $ character in an identifier produces
>>"undefined behavior"...
>Doug, can you cite chapter and verse for this?

I was concerned only with identifiers that made it through the
preprocessing phase, since that is the situation I'm familiar with
where $ in identifiers really is wanted in some implementations.

Obviously, I don't recommend using $ in identifiers unless you
HAVE to.