On Fri, Dec 16, 2005 at 03:09:01PM +0200, Denis Vlasenko wrote:
>
> Forward decl for typedef works too:
>
> typedef struct foo foo_t;
>
> is ok even before struct foo is defined. Not sure that standards
> allow thing, but gcc does.
Forward declarations of typedefs don't work in at least one case that
do for struct definitions:
$ cat foo.c
typedef struct foo foo_t;
typedef struct foo foo_t;
$ gcc -Wall -o foo.o -c foo.c
foo.c:2: error: redefinition of typedef 'foo_t'
foo.c:1: error: previous declaration of 'foo_t' was here
and if you don't believe we do that, take another look at our headers
sometime.
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