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Re: Compiler Warnings, again
- To: PAZZANI@PAN.ICS.UCI.EDU
- Subject: Re: Compiler Warnings, again
- From: email@example.com (Bill St. Clair)
- Date: Mon, 16 Mar 1992 02:29:24 -0500
- Cc: STEVE.M@AppleLink.Apple.COM (Aladdin Systems,Steven Mitchell,PRT), info-mcl
>You've acknowleged that turning off compiler warnings is a bad idea. As far
>as I can see, the "Undefined functions" warnings are the only ones at issue
>here so what you need is a counterpart to (declare (ignore-if-unused ...)):
> (declare (ftype (function (*) *) fn-name))
> and at top-level:
> (declaim (ftype (function (&rest t) t) fn-name))
> I'm not sure of the exact MCL 2.0b1 syntax.
Though MCL final will support this way of forward referencing a function
definition, 2.0b1 does not. Even 2.0 final will only support this in
the file compiler. Evaluating it in the Listener does nothing.
>> I'm sure if I try hard enough, I can get around this, but I'd rather
>> not anticipate every possible warning and correct for it. I really
>> want to turn off all warnings. If I promise to use it only in
>> (without-compiler-warnings (compile (convert-to-lisp-function ....)))
>> can I get a hint on how to write without-compiler-warnings.
>Perhaps someone could "compile" a list of all the possible warnings, and
>the proper way to declare each one away for those cases where we're sure
>we know what we're doing. without-compiler-warnings is trivial to write,
>but requires an undocumented internal MCL feature. And we're agreed that
>it's a bad idea to turn off all warnings.
There is a completely proper way to do this most unproper thing. Use the
Common Lisp condition system:
(defmacro without-warnings (&body body)
If you want to ignore only compiler warnings, you need to use an
internal condition type:
(defmacro without-compiler-warnings (&body body)