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From: swie@cs.umn.edu (S. T. Tan)
Newsgroups: comp.lang.c
Subject: How to get a byte offset
Message-ID: <1990May28.034643.6962@cs.umn.edu>
Date: 28 May 90 03:46:43 GMT
Sender: S. T. Tan
Distribution: usa
Organization: U of M, Mpls.
Lines: 19

Is there an easy way to get the byte offset of a field in a structure without
counting it manually ?
The reason I don't want to count the offset manually is, the size of the 
"int"-type is machine dependent (may be 2 bytes or 4 bytes).

example: struct {
           int	a;
           char	b[3];
           int	c[10];
           char	d;
         } my_struct_type;

What would be the offset of "d" ?

Please e-mail the answer to me directly since it seems to me that the answer is
trivial.

Thanks in advance
swie@umn-cs.cs.umn.edu