structure declaration not supported

Hi ,

While trying to port to Codewarrior environment, i find that the below
type of structure declaration is supported only in cygwin/gcc but not
in Codewarrior. It breaks in codewarrior environment.

Has anyone come across such a thing and could someone here tell me an
equivalent alternative for
this so that i can use in codewarrior environment.

struct tfsdev alt_tfsdevtbl[TFSDEVTOT] = {
	[0 ... (TFSDEVTOT-1)] =
	{ (char *)0xffffffff, 0xffffffff, 0xffffffff,
		0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }
};

char alt_devnames[TFSDEVTOT][TFSNAMESIZE] = {
	[0 ... (TFSDEVTOT-1)] =
	{ [0 ... (TFSNAMESIZE-1)] = 
	  0xff }
};

Regards,
Karthik Balaguru

karthikbg wrote:
> Hi ,
>
> While trying to port to Codewarrior environment, i find that the below
> type of structure declaration is supported only in cygwin/gcc but not
> in Codewarrior. It breaks in codewarrior environment.
>
> Has anyone come across such a thing and could someone here tell me an
> equivalent alternative for
> this so that i can use in codewarrior environment.
>
> struct tfsdev alt_tfsdevtbl[TFSDEVTOT] = {
> [0 ... (TFSDEVTOT-1)] =
> { (char *)0xffffffff, 0xffffffff, 0xffffffff,
> 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }
> };
>
> char alt_devnames[TFSDEVTOT][TFSNAMESIZE] = {
> [0 ... (TFSDEVTOT-1)] =
> { [0 ... (TFSNAMESIZE-1)] =
>   0xff }
> };

Inititalize the struct in a loop.
for(p= (char *) alt_tfsdevtbl,i = 0; i < sizeof(alt_tfsdevtbl); i ++) {
        *p++ = 0xff;
}


>
> Regards,
> Karthik Balaguru

-- 
Best Regards,
Ulf Samuelsson
ulf@a-t-m-e-l.com
This message is intended to be my own personal view and it
may or may not be shared by my employer Atmel Nordic AB 

Hi,

There is NO direct replacement in Codewarrior for the structure
declaration you are referring to. Although I am not familiar with the
Cygwin/gcc compiler you mention, the declaration:

struct tfsdev alt_tfsdevtbl [TFSDEVTOT] = {
 	[0 ... (TFSDEVTOT-1)] =
 	{ (char *)0xffffffff, 0xffffffff, 0xffffffff,
 		0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }
};

is basically telling the compiler to statically initialize all elements
in alt_tfsdevtbl (from 0 to (TFSDEVTOT-1)) to the defaults:

{ (char *)0xffffffff, 0xffffffff, 0xffffffff,
 		0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }

(If I am correct, that means that the tfsdev structure contains 7
"elements/fields").

To make a similar declaration in Codewarrior you must do the following:

struct tfsdev alt_tfsdevtbl [TFSDEVTOT] = {
{ (char *)0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff  },   //0
{ (char *)0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff  },   //1
{ (char *)0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff  },   //2
      ...
{ (char *)0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff  },   // TFSDEVTOT-2
{ (char *)0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
0xffffffff, 0xffffffff  },   // TFSDEVTOT-1
};

If TFSDEVTOT is too big, try to encapsulate the initialization in a
function:

for ( i = 0; i < TFSDEVTOT; i++ )
{
    alt_tfsdevtbl [i].xxxxxxx = 0xffffffff;
    alt_tfsdevtbl [i].xxxxxxx = 0xffffffff;
    ...
OR

    memset ( &alt_tfsdevtbl[i], 0xFF, sizeof ( struct tfsdevtbl ));
}

Regards
Rene Trenado


to
karthikbg wrote:
> Hi ,
>
> While trying to port to Codewarrior environment, i find that the below
> type of structure declaration is supported only in cygwin/gcc but not
> in Codewarrior. It breaks in codewarrior environment.
>
> Has anyone come across such a thing and could someone here tell me an
> equivalent alternative for
> this so that i can use in codewarrior environment.
>
> struct tfsdev alt_tfsdevtbl[TFSDEVTOT] = {
> 	[0 ... (TFSDEVTOT-1)] =
> 	{ (char *)0xffffffff, 0xffffffff, 0xffffffff,
> 		0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }
> };
>
> char alt_devnames[TFSDEVTOT][TFSNAMESIZE] = {
> 	[0 ... (TFSDEVTOT-1)] =
> 	{ [0 ... (TFSNAMESIZE-1)] =
> 	  0xff }
> };
> 
> Regards,
> Karthik Balaguru

Hi,
Thx for the info.

Regards,
Karthik Balaguru

karthikbg wrote:
> Hi ,
> 
> While trying to port to Codewarrior environment, i find that the below
> type of structure declaration is supported only in cygwin/gcc but not
> in Codewarrior. It breaks in codewarrior environment.
> 
> Has anyone come across such a thing and could someone here tell me an
> equivalent alternative for
> this so that i can use in codewarrior environment.
> 
> struct tfsdev alt_tfsdevtbl[TFSDEVTOT] = {
> 	[0 ... (TFSDEVTOT-1)] =
> 	{ (char *)0xffffffff, 0xffffffff, 0xffffffff,
> 		0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }
> };
> 
> char alt_devnames[TFSDEVTOT][TFSNAMESIZE] = {
> 	[0 ... (TFSDEVTOT-1)] =
> 	{ [0 ... (TFSNAMESIZE-1)] = 
> 	  0xff }
> };
> 
> Regards,
> Karthik Balaguru


If you read the GCC manual, you'll note that the construct
you're using is a GCC extension. Cygwin has nothing to do
with this feature.

-- 

Tauno Voipio
tauno voipio (at) iki fi

Tauno Voipio wrote:
> karthikbg wrote:
> > Hi ,
> >
> > While trying to port to Codewarrior environment, i find that the below
> > type of structure declaration is supported only in cygwin/gcc but not
> > in Codewarrior. It breaks in codewarrior environment.
> >
> > Has anyone come across such a thing and could someone here tell me an
> > equivalent alternative for
> > this so that i can use in codewarrior environment.
> >
> > struct tfsdev alt_tfsdevtbl[TFSDEVTOT] = {
> > 	[0 ... (TFSDEVTOT-1)] =
> > 	{ (char *)0xffffffff, 0xffffffff, 0xffffffff,
> > 		0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff }
> > };
> >
> > char alt_devnames[TFSDEVTOT][TFSNAMESIZE] = {
> > 	[0 ... (TFSDEVTOT-1)] =
> > 	{ [0 ... (TFSNAMESIZE-1)] =
> > 	  0xff }
> > };
> >
> > Regards,
> > Karthik Balaguru
>
>
> If you read the GCC manual, you'll note that the construct
> you're using is a GCC extension. Cygwin has nothing to do
> with this feature.
>
> --
>
> Tauno Voipio
> tauno voipio (at) iki fi

Yes, It should be GCC only. (Cygwin is the environment. Sorry, I should
have
mentioned clearly).

Regards,
Karthik Balaguru