On Wed, 2006-09-06 at 13:41 +1000, Benno wrote:
> On Wed Sep 06, 2006 at 11:03:48 +0800, raymond wrote:
> >I write a simple C program with a Macro like below:
> >
> >/*test.c*/
> > 1 #include<unistd.h>
> > 2 #include<stdio.h>
> > 3 #include <stdlib.h>
> > 4 #define MSG_COMMON_HEADER() \
> > 5 u_int16_t len; \
> > 6 u_int16_t type;
> > 7
> > 8 struct any_msg {
> > 9 MSG_COMMON_HEADER ();
> > 10 };
>
>
> Won't this expand to:
>
> struct any_msg {
> u_int16_t len;
> u_int16_t type;;
> }
>
> Note the doulbe semi-colon. I'm not sure if that is valid C or not.
> It's definately not nice though.
>
> Don't know if that is the problem or not, but could be.
>
> Cheers,
>
> Benno
>
It's not the reason, because I drop the semicolon on the line # 9, it
still have the same parse error.
> > 12 int main( int argc , char** argv)
> > 13 {
> > 14 struct any_msg msg = {
> > 15 .type = 0,
> > 16 .len = 4};
> > 17 printf( "msg.type = %d msg.len = %d\n", msg.type,msg.len);
> > 18 return 0;
> > 19 }
> >
> >Using the splint cmd:
> > splint +posixlib macro_splint.c
> >it outputs:
> >
> > Splint 3.1.1 --- 06 Jan 2006
> >
> > macro_splint.c:9:13: Parse Error. (For help on parse errors, see
> > splint -help
> > parseerrors.)
> > *** Cannot continue.
> >It seems like splint can't parse the MSG_COMMON_HEADER() macro.
> >
> >Has anyone met this problem?
> >
> >Thanks a lot
> >
> >
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