Hello All,
          tp.c:107: error: syntax error before '*' token
tp.c:108: warning: function declaration isn't a prototype
tp.c:121: error: syntax error before '*' token
tp.c:122: warning: function declaration isn't a prototype
tp.c:135: error: syntax error before '*' token
tp.c:138: warning: return type defaults to `int'
tp.c:138: warning: no previous prototype for 'test_modevent'
tp.c: In function `test_modevent':
tp.c:143: warning: assignment from incompatible pointer type
*** Error code 1
***************************************************
This is the error code that i am getting on gcc conpiler but i dont
understand what could be wrong
i also attach that part of the code here
***************************************************
struct drv_t {
        char name [8];
        struct cdev *devt;
};

//static void test_ifstart (drv_t *d);
//static void test_ifwatchdog (drv_t *d);
//static void test_initialize (void *softc);
//static int test_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);

static void test_ifstart (drv_t *d)
{


        uprintf("inside start\n");
        return;

}
 


Kindly help me in  sorting this problem 
Thanks and regards,
Rashmi

rashmi wrote:
> tp.c:107: error: syntax error before '*' token
[...]
> struct drv_t {
>         char name [8];
>         struct cdev *devt;
> };
[...] 
> static void test_ifstart (drv_t *d)

In C (other than in C++) a struct/union/enum does not introduce a new type.
Therefore, you need to write 
   static void test_ifstart (struct drv_t *d)
or use a typedef to make it a type:
   typedef struct drv_t drv_t;

Uli

Thank you it really worked 
--
rasmi

Ulrich Eckhardt wrote:
> rashmi wrote:
> > tp.c:107: error: syntax error before '*' token
> [...]
> > struct drv_t {
> >         char name [8];
> >         struct cdev *devt;
> > };
> [...]
> > static void test_ifstart (drv_t *d)
>
> In C (other than in C++) a struct/union/enum does not introduce a
> new type.

Yes, it does.

> Therefore, you need to write
>    static void test_ifstart (struct drv_t *d)
> or use a typedef to make it a type:
>    typedef struct drv_t drv_t;

This is because struct tags are not visible as automatic typedef names
(or whatever C++ does), not because struct is not a new type.

-- 
Peter

Ulrich Eckhardt <doomster@knuut.de> writes:
> rashmi wrote:
>> tp.c:107: error: syntax error before '*' token
> [...]
>> struct drv_t {
>>         char name [8];
>>         struct cdev *devt;
>> };
> [...] 
>> static void test_ifstart (drv_t *d)
>
> In C (other than in C++) a struct/union/enum does not introduce a new type.

Yes, it does introduce a new type.  The difference is that the tag is
in a separate namespace; it's not directly visible without the
struct/union/enum keyword in front of it.

> Therefore, you need to write 
>    static void test_ifstart (struct drv_t *d)
> or use a typedef to make it a type:
>    typedef struct drv_t drv_t;

Right.

It's often argued that the typedef is a bad idea.  It serves to hide
the fact that the type is a struct; it's usually better to make that
explicit.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
San Diego Supercomputer Center             <*>  <http://users.sdsc.edu/~kst>
We must do something.  This is something.  Therefore, we must do this.

Ulrich Eckhardt <doomster@knuut.de> wrote:
[...]
>In C [...] a struct/union/enum does not introduce a new type.

On the contrary, as already correctly pointed out by others.

To put even more emphasis on the fact that these keywords actually 
declare new types: it can be (and has been, e.g. by Chris Torek) 
argued, that it's reasonable to think of "struct" actually /meaning/ 
"type"!

>[...] you need to write 
>   static void test_ifstart (struct drv_t *d)
>or use a typedef to make it a type:
>   typedef struct drv_t drv_t;

Right.  Notice however, that the keyword "typedef" does not declare a 
new type, but merely declares a typename-alias for an existing type, 
covering up the nature of this type.  This is often considered a Bad 
Thing[tm] to do, at least by a significant number of regulars in this 
group, AFAICT.

Best Regards.
-- 
Irrwahn Grausewitz (irrwahn35@freenet.de) 
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