arithmetic on void pointers

[T. William Wells]

In article <1527 at ncar.ucar.edu> russ at groucho.UUCP (Russ Rew) writes:
: GNU C supports arithmetic on void pointers, but the manual implies
: that this is an extension to the C language.  I could find no
: prohibition on arithmetic on void pointers in K&R second edition.
: What does the latest dpANS document say?  Is it legal to increment a
: variable of type void* ?

When the dpANS talks about pointer arithmetic, it speaks of pointers
to an object type.  Void is an incomplete type, a pointer to void is
thus not a pointer to an object type, so a void pointer can't be used
in pointer arithmetic.

---
Bill
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