Date: 17 Jan 1997 15:17:09 -0800 From: jdp@polstra.com (John Polstra) To: freebsd-current@freebsd.org Subject: Re: gcc compiler question Message-ID: <5bp19l$a9r@austin.polstra.com> References: <32DFDDF6.41C67EA6@mindspring.com>
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In article <32DFDDF6.41C67EA6@mindspring.com>,
Ron Bolin <rlb@mindspring.com> wrote:
> /*
>
> Under Solaris 2.X this compiles with the proper macro substitution
> on
> savepS = savead-lcl0;
> to
> LSave [ 6 ] = savead- ( Origin [ 5 ] );
>
> But gcc does not
> */
> #define savepS LSave[NAreas]
> #define NAreas 6 /* number of work areas/stacks */
> #define LocalId 5
> typedef unsigned **PTR;
> static PTR *savead, Origin[100];
> #define lcl0 (Origin[LocalId])
> unsigned LSave[100];
> main()
> {
>
> savepS = savead-lcl0;
> }
Eh? It works fine over here:
freebie$ cat foo.c
/*
Under Solaris 2.X this compiles with the proper macro substitution
on
savepS = savead-lcl0;
to
LSave [ 6 ] = savead- ( Origin [ 5 ] );
But gcc does not
*/
#define savepS LSave[NAreas]
#define NAreas 6 /* number of work areas/stacks */
#define LocalId 5
typedef unsigned **PTR;
static PTR *savead, Origin[100];
#define lcl0 (Origin[LocalId])
unsigned LSave[100];
main()
{
savepS = savead-lcl0;
}
freebie$ cc -E foo.c
# 1 "foo.c"
typedef unsigned **PTR;
static PTR *savead, Origin[100];
unsigned LSave[100];
main()
{
LSave[6 ] = savead- (Origin[5 ]) ;
}
John
--
John Polstra jdp@polstra.com
John D. Polstra & Co., Inc. Seattle, Washington USA
"Self-knowledge is always bad news." -- John Barth
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