I should have said "regular C" or something like that, meaning ordinary, everyday, hosted C.
I've never though of H&S as a tutorial, and I would be concerned that the discussions of differences between various versions would be at best noise and at worst confusing to a beginner.
I disagree here, especially if that someone expects to work on more than one platform in his career. You can't write Z80 code forever ;-)
This is a good place to quote a bit of an excellent article recently written to comp.lang.c by Steve Summit: