Re: What declarations of main exist in the c standard?

"Eric Sosman" <esosman@xxxxxxxxxxxxxxxxxxx> wrote in message
news:C-udnTvjjoEBYz_fRVn-qw@xxxxxxxxxxxxxx
> bjrnove wrote:
>> Hi.
>>
>> Me and a friend have a discussion about main. In my opinion the legal
>> ways of writing main is:
>>
>> int main(void);
>> int main(int,char**);
>>
>> My friend claims that you also have a standard version with enviroment
>> variables like this:
>> int main(int,char**,char**);
>>
>> Is that right or are my two versions the only standard c way to do it?
>
> The Standard guarantees that any hosted C implementation
> must accept your two forms. The Standard allows an implementation
> to accept other forms, too, but does not describe any of those
> implementation-specific alternative forms
<snip>

Actually, it does 'describe' one of those 'other forms'.

J.5.1 Environment arguments
[#1] In a hosted environment, the main function receives a
third argument, char *envp[], that points to a null-
terminated array of pointers to char, each of which points
to a string that provides information about the environment
for this execution of the program (5.1.2.2.1).


.

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