Another sizeof question

[Stan Brown]

In article <13294 at crdgw1.crd.ge.com>, volpe at camelback.crd.ge.com (Christopher R Volpe) writes:
> The "Bible" I was referring to is the American National Standard X3.159-1989.
> I understand now what the rule is regarding sizeof, and why it is. 
> But, could you or someone else point me to a reference in the Standard
> that says that a constant expression in a preprocessor context cannot
> contain sizeof? I'm sure it's in there but I can't find it. 

Chris, I haven't got a copy of the standard with me at this location,
but I think the index will help you.  Hint: ask the question in a
different way.  Don't look under sizeof, but under #if.  If memory
serves, you'll find references to a "restricted constant expression" and
if you'll follow that down you'll find that things involving program
variables and types  are _not_ part of it.  So it's not sizeof per se,
but any possible "argument" to sizeof that is the problem.

Sorry I don't have a section reference for you, but nobody else has 
posted one and the above at least should get you started.

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                                   email: browns at iccgcc.decnet.ab.com
Stan Brown, Oak Road Systems, Cleveland, Ohio, USA    +1 216 371 0043