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From: peterwu@microsoft.UUCP (Peter Wu )
Newsgroups: comp.lang.c
Subject: sizeof a struc field
Keywords: sizeof
Message-ID: <7710@microsoft.UUCP>
Date: 15 Sep 89 18:39:08 GMT
Distribution: usa
Lines: 16

What's the simplest way to obtain the sizeof a field inside a struc
without declaring a variable?

E.g:

struct abc {
  int def;
  char ghi;
  long jkl;
};

I know this works:

#define SIZEGHI sizeof(((struct abc *)0)->ghi)

Is there a shorter way?