Date: Sat, 3 May 2008 07:43:48 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: freebsd-ports@freebsd.org Subject: Re: Using stderr in an initialization? Message-ID: <20080502214348.GZ7293@server.vk2pj.dyndns.org> In-Reply-To: <20080502202356.GA67129@troutmask.apl.washington.edu> References: <20080502202356.GA67129@troutmask.apl.washington.edu>
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On Fri, May 02, 2008 at 01:23:56PM -0700, Steve Kargl wrote:
>static FILEP outfile =3D {stderr};
=2E..
>troutmask:sgk[204] cc -o z a.c
>a.c:5: error: initializer element is not constant
>a.c:5: error: (near initialization for 'outfile')
The braces are superfluous but the underlying problem is that stderr
is not a compile-time constant - it's an 'extern FILE *'.
>clear where such a change be made. So, anyone have a
>suggestion on how to change line 5 to satisfy gcc?
Move the assignment to the start of main():
>int
>main(int argc, char *argv[])
>{
> FILE *fp;
>
outfile =3D stderr;
> if (argc =3D=3D 2) {
=2E..
If 'outfile' is not visible from main() then you'll need to use some
sort of initialisation function - either called explicitly from main()
or via an C++-style implicitly-called initialiser.
--=20
Peter Jeremy
Please excuse any delays as the result of my ISP's inability to implement
an MTA that is either RFC2821-compliant or matches their claimed behaviour.
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