[TUHS] Comments in early Unix systems

[Lyndon Nerenberg]

> I'll agree with the latter part. But in my own code I try to be very
> careful to use NULL for pointers, '\0' for end of string,

In the '\0' case I have a preference for NUL, but admittedly it's easy to 
confuse/typo with NULL.  That convention follows from my habit of enuming 
ASCII constants with their three-letter 'names' (e.g. CAN, DLE, ...).

--lyndon