[PLUG] A "C" error
Anthony Schlemmer
aschlemm at attbi.com
Sun Dec 29 10:47:03 UTC 2002
The other thing you can try is to rewrite the the statements like so and
see if it makes any difference:
#ifndef __adb
#define __adb
struct pADB {int unused;};
typedef struct pADB ADB;
#endif
As far as I know there is nothing wrong with declaring both the struct
and typedef in the same statement and you can probably find examples of
this in the various C header files that exist on most Linux systems.
The above statements compile under GCC 3.2 with no errors.
Tony
On Wednesday 25 December 2002 17:07 pm, Rich Shepard wrote:
> Mail's not posting to plug-devel so I'll ask this here.
>
> In a header file I have this:
>
> #ifndef __adb
> #define __adb
> typedef struct pADB {int unused;} ADB; // line 610
> #endif
>
> and gcc generates this error:
>
> fsmsystem.h:610: two or more data types in declaration of DB'
> fsmsystem.h:610: two or more data types in declaration of DB'
> fsmsystem.h:610: two or more data types in declaration of DB'
> fsmsystem.h:610: two or more data types in declaration of DB'
>
> I've tried compiling without the 'typedef' but it makes no
> difference. I cannot see the two data types in this declaration. I
> see a struct that contains only a single int.
>
> Will someone please show me what I cannot see?
>
> Thanks,
>
> Rich
>
>
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--
Anthony Schlemmer
aschlemm at attbi.com
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