Re: no previous prototype for function that is defined in header?
Re: no previous prototype for function that is defined in header?
- Subject: Re: no previous prototype for function that is defined in header?
- From: "Clark S. Cox III" <email@hidden>
- Date: Fri, 28 Jan 2011 15:25:54 -0800
On Jan 28, 2011, at 2:13 PM, Mark Wagner wrote:
> On Tue, Jan 25, 2011 at 14:17, Marc Respass <email@hidden> wrote:
>
>> While I was responding, I was trying various things. I changed my function from foo() to foo(void) and that fixed it. I feel like such a schmuck. I even have my K & R book out but didn't find the answer. Maybe years of Java have replaced my C knowledge but I didn't realize that I had to have "void" in a method that takes no arguments. I checked the C Language Dialect and it's set to GNU99.
>>
>
> In standard C, foo() is a function that takes an arbitrary number of
> parameters. foo(void) is a function that takes zero parameters. The
> distinction is usually academic, but there is the occasional case
> where it matters.
>
> C++ changes this: foo() and foo(void) are both functions that take
> zero parameters.
>
> I don't know how Objective-C and Objective-C++ handle things.
Just like C and C++ respectively. _______________________________________________
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