%p and different pointer representations

[T. William Wells]

In article <9765 at smoke.BRL.MIL> gwyn at brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) writes:
: >Also, how's this for a solution:
: >#if sizeof (void *) > sizeof (void (*)())
: >#define generic_ptr (void *)
: >#else
: >#define generic_ptr (void (*)())
: >#endif
: >Then use generic_ptr instead of void *, and any pointer type
: >(including pointers to functions) will fit (as long as you remember to
: >cast everything you assign).
:
: Won't work.  There is no guarantee that an object pointer can be
: converted to a function pointer or vice-versa.

Also, the sizeofs don't work in #ifs. Not according to the dpANS, nor
in many existing compilers.

---
Bill
{ uunet | novavax } !twwells!bill
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