From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Mon, 22 Sep 2008 19:50:12 +0200
From: Philippe Gerum <rpm@xenomai.org>
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Subject: Re: [Xenomai-core] Signature of kernel_init of xenomai-solo?
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai-core <xenomai@xenomai.org>

Gilles Chanteperdrix wrote:
> Niklaus Giger wrote:
>> Hi 
>> Shouldn't the signature not bee
>> STATUS kernelInit(FUNCPTR rootRtn, int argc, const char * argv[]);
>> instead of
>> STATUS kernelInit(FUNCPTR rootRtn, int argc, char *const argv[]);
>> I think this would be more like a classical definition "main".
>>
>> I have a classical definition of
>>   int main(int argc, char *argv[])
>> which permits mit to pass it to , const char * argv[]),
>> whereas char *const argv[] is not an allowd cast.
> 
> Personnaly, I always used:
> 
> int main(int argc, const char *const argv[])
> 
> until the day when I started using getopt or getopt_long, which
> prototype are:
> 
> int getopt(int argc, char * const argv[],
>                   const char *optstring);
>  int getopt_long(int argc, char * const argv[],
>                   const char *optstring,
>                   const struct option *longopts, int *longindex);
> 
> So, now, I always use:
> 
> int main(int argc, char *const argv[])
> 
> Maybe that is also the reason for the prototype of kernelInit ?
> 

Yes it is. Even if that looks a bit funky, we are still supposed to be able to
poke to the arg memory, even if we can't change the pointers to it.

-- 
Philippe.