Re: [avr-gcc-list] How to warn if a function called with extra arguments

[Richard Urwin]

On Monday 22 Mar 2004 6:53 am, Tom Harris wrote:
> Greetings,
>
> Here is an example of code that compiles with no warnings:
>
> void f() {
> }
>
> void g() {
>       f(1); // extra argument
> }
>
> I know that it is harmless, but s there a way to persuade gcc to
> print a warning in such cases?
>
> If I declare f as `f(void)` then the compiler complains about the
> extra argument.

Defining f as f() is old K&R C, and it doesn't define how many arguments 
f takes. f(void) is new ISO C, and it defines f to take no arguments.

HTH.

-- 
Richard Urwin

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