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From: Frank Heckenbach
Subject: Unused parameter warnings
Date: 23 Sep 2004, 06:36:28

Scott Moore wrote:

> No, I still use the stupid way:
> 
> function stuff: integer;
> 
> begin
> 
>     stuff := 0
> 
> end;
> 
> To me the idea is, parameters can be safely ignored (there is also
> a "reference check off" switch /nrf or /norefer, but that affects
> the entire program). Functions always return *something*, so you
> might as well specify what it is, even for a dummy function. Otherwise,
> you are asking the compiler to guess for you.

Indeed. Actually according to the standards it's an *error* if you
don't (and GPC treats it so).

What I meant is for the caller to ignore the result of a function
(i.e., basically, to use a function like a procedure). Besides the
mentioned useless results in C functions, there can be useful cases
even in Pascal code where a result is sometimes, but not always
needed.

> To come clean, I use the /norefer flag a lot on new code. Hey, I'm lazy.
> On the other hand, my previous compiler (SVS 386 Pascal) either didn't
> do reference checking, or I didn't have it on, and I found my code littered
> with excess variables when I moved to IP Pascal.

Same here for code I (or someone else) previously compiled with
Borland Pascal or with GPC without warnings.

Frank

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