On Thu, 11 Apr 2002, Bob Ammerman wrote:

> <snip>
> >
> >      (((union lo_hi) eth_length).b.l) = ....;   // assign low byte
> >
> > CCS won't compile this statement - it says it is looking for a close
> > paren.
> > I didn't know you could cast to a union or a structure, and the limited
> > references I have handy don't talk about it.  Am I understanding your
> > suggestion correctly?
>
> No, you can't cast a union or structure, but you can cast a pointer to one.

Interesting. gcc *will*  cast a union as long as one of the elements in
the union is of the same type of the object being cast.

E.g.:

union i_c {
  int i;
  char c;
};

...

 unsigned int ui;
 int i;
 char c;

...

  c = ((union i_c)i).c;    // not an error
  c = ((union i_c)ui).c;   // error

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