Date: Wed, 5 Aug 1998 01:03:14 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: chuckr@glue.umd.edu (Chuck Robey) Cc: Nicolas.Souchu@prism.uvsq.fr, freebsd-hackers@FreeBSD.ORG Subject: Re: C and static initialization with unions Message-ID: <199808050103.SAA27705@usr02.primenet.com> In-Reply-To: <Pine.BSF.4.00.9808041508210.409-100000@picnic.mat.net> from "Chuck Robey" at Aug 4, 98 03:09:11 pm
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> > union foo_t {
> > int i;
> > char c;
> > void *p;
> > };
> >
> > static union foo_t bar = { (void *)&anyvar };
>
> No, you forgot to mention which union memeber to use. Your foo_t.p
> would do nicely.
1) This is a vendor extension.
2) That vendor isn't FSF or Cygnus.
3) It's "foo_t bar.p", not "foo_t.p bar".
4) It still breaks for:
typedef enum { UT_INT, UT_CHAR, UT_PTR } ut_t;
typedef struct {
ut_t u_type;
struct foo_t u; /* someone blew a typedef*/
} bob_t;
bob_t bobs.p[] = {
{ UT_PTR, &anyvar },
{ UT_INT, 35 }, /* oops!*/
{ UT_PTR, NULL }
};
Terry Lambert
terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.
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