Date: Fri, 2 May 2008 13:23:56 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: freebsd-ports@freebsd.org Subject: Using stderr in an initialization? Message-ID: <20080502202356.GA67129@troutmask.apl.washington.edu>
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I'm porting a piece of code to FreeBSD, and I've run into
a problem that I currently don't know how to solve. I scanned
both the Porter's Handbook and the Developer's Handbook, but
came up empty.
A reduce testcase is
#include <stdio.h>
typedef FILE *FILEP;
static FILEP outfile = {stderr};
int
main(int argc, char *argv[])
{
FILE *fp;
if (argc == 2) {
fp = fopen(*++argv, "w");
outfile = fp;
}
fprintf(outfile, "Ouch!\n");
return 0;
}
GCC gives
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')
Yes, I know in the simple example above that I could
put 'outfile = stderr' above the 'if (argc == 2)'
statement. In the much more complicated code, it isn't
clear where such a change be made. So, anyone have a
suggestion on how to change line 5 to satisfy gcc?
--
Steve
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