[Tinyos-host-mote-wg] Re: [Tinyos-2.0wg] nesC passing strings to generic components/modules

[Philip Levis]

On May 18, 2005, at 9:46 PM, Joe Polastre wrote:

> I have tried to pass a string and I get the following error when I use
> the string inside "unique" inside of a module:
>
> argument to `unique' must be a string
>
> same thing happens with uniqueCount
>
> I've defined by components with:
>
> generic configuration BusArbitrationC(char busname[]) { ... }
>
> generic module BusArbitrationM(char busname[]) {
>   void foo() {
>     uint8_t bar = uniqueCount(busname);
>   }
> }
>
> char name[] seems to be acceptible to nesC while (rationally) char*  
> is not
>
> I've checked the OSKI code and Phil seems to use char[] and char* in
> various pieces of code, but none of that code is actually compiles.
>
> suggestions?
>

I ran into the same issue: components I was working on use [] while  
those I haven't gotten to yet use *.  David Gay said that he would  
have to look into it; he seemed to recall some complexities as to why  
unique() only took char[]. Making it take char* might be a good deal  
of work.

I wasn't able to get char[] to compile in my code either. He's  
looking at that too. Once it's worked out, Cory said he'd probably be  
changing some of his components: he didn't realize you could do this.

Phil



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