Another sizeof question

[Doug Gwyn]

In article <13294 at crdgw1.crd.ge.com> volpe at camelback.crd.ge.com (Christopher R Volpe) writes:
>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?

It doesn't say that.  The following is strictly conforming:

	#define sizeof 42+
	#define a (-40)
	#if sizeof a > 2
	#include <banana.h>
	#endif
	#undef sizeof