Re: Static qualifier in function names

[Ben Combee]

At 22:03 2002-11-24 -0800, you wrote:

Ben,

Thanks for the info.

> In short, the "static" keywords are used to keep CodeWarrior from
> complaining about the lack of prototypes for these functions.

BTW, this isn't a CodeWarrior forum, is it?! One mustn't assume...  ;-)

Agreed... however, all of the examples in the SDK were written originally using CodeWarrior as the compiler, which explains why things would be written to avoid warnings that CW raises.

First, I always use prototypes in my modules. Not for "showing the intention
to export the function to other modules", but for the reason stated in K&R
2nd edition; "The new syntax of function prototypes makes it much easier for
a compiler to detect errors in the number of arguments or their types".

True, but remember also that a function definition also serves the the prototype for the function, if its seen before users. If you use static functions and define them in a bottom-up order, then you don't need to write separate prototypes.

Second, I use the free command-line tools since this is my first foray into
Palm OS programming (tho, I've been programming in C for more than a dozen
years). GCC has made no "complaints" about my not using static in the last
few functions I wrote, I was just  looking at my listing for inconsistencies
now that the basic functionality is completed, and lo! I see that I had been
omitting the static qualifier - that got me to wondering why I had put ANY
of them in, then a review of the book and code samples, etc. showed everyone
else using static, so I wrote the original question.

That's fine... each compiler writer/vendor chooses what warnings to implement.

So, a further question: Does CodeWarrior complain where GCC does not? Or are
you assuming that I am NOT using prototypes at the beginning of my source
module? Perhaps I should increase my warning level on GCC. Is there a way to
do this? I don't see a compiler switch ala -W3 in MSC.

I think -Wall turns on most of the warnings in GCC -- there is plenty of online documentation for GCC and its derivatives for you to check.

--
Ben Combee <[EMAIL PROTECTED]>
CodeWarrior for Palm OS technical lead
Palm OS programming help @ www.palmoswerks.com


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