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Re: [Gcl-devel] Calling for top ten ANSI issues ...

From: Camm Maguire
Subject: Re: [Gcl-devel] Calling for top ten ANSI issues ...
Date: 20 Sep 2003 11:22:07 -0400
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2

Greetings, and thanks as always, Paul.

I'll start on 1,2 and 3 first.  If anyone else wants to work on the
others please let me know so we can avoid duplication.

Take care,

"Paul F. Dietz" <address@hidden> writes:

> Camm Maguire wrote:
> > Greetings!  I think its time to work on this some more.  What are the
> > top ten issues in order of priority revealed by Paul's latest tests?
> Here's a list of ten bugs (or classes of bugs) from the test suite that
> may have a high impact on the test suite.  Take this as advisory only,
> though, and work on what seems easiest to you.
> (BTW, do *not* work on the (array nil) or nil-string tests until
> everything else is out of the way, if then.  My guess is these 'features'
> will be removed from the spec at some point.)
> 1. When a condition is defined, it's not always detected as a subtype
>    of CONDITION.
>     Example:
>     Expected values: T
>                      T
>     Actual values: NIL
>                    NIL.
> 2. :ALLOW-OTHER-KEYS processing is broken
>       Should be: (nil nil nil nil nil)
>       gcl instead: raises an error
>       The *leftmost* occurence of :ALLOW-OTHER-KEYS has priority
>         over later occurences of the same keyword parameter.
> 3. Some number comparison tests cause the test driver to break.
>     <.4, <=.4, >.4, >=.4 all raise a condition that can't be printed:
>      Test <.4 failed
>      Form: (LOOP
>              FOR
>              (X Y RESULT . REST)
>              IN
>              *NUMBER-LESS-TESTS*
>              UNLESS
>              (IF (< X Y) RESULT (NOT RESULT))
>              COLLECT
>              (LIST* X Y RESULT REST))
>      Expected value: NIL
>      Actual value:
>      Error in EVAL [or a callee]: Can't print a non-number.
>      Fast links are on: do (use-fast-links nil) for debugging
>      Broken at DO-TEST.  Type :H for Help.
>       1 (Abort) Return to top level.
>      dbl:CL-TEST>>
> 4. Builtin method combinations aren't working.
>     See the DEFGENERIC-METHOD-COMBINATION* tests, as well as the CPL
>     tests (which use a nonstandard builtin method combination.)
> 5. LOOP errors
>     These can probably be fixed by using the CMUCL or SBCL LOOP macro.
> 6. Numerous error cases not properly handled.
>     Many list functions, for example, are required to signal a type error
>    if the list argument is not a proper list (see many of the error cases
>    in tests loaded from load-cons.lsp.)
> 7. The function SIMPLE-CONDITION-FORMAT-CONTROL isn't defined, and
>    SIMPLE-ERROR doesn't admit a :FORMAT-CONTROL initialization argument.
>    (There's much more condition-related breakage, but I haven't gone
>     through that in detail.)
> 8. (SETF <symbol>) should be a valid function name.
> 9. PARSE-INTEGER should produce PARSE-ERRORs, not STREAM-ERRORs.
> 10. I've put together a random stress tester (see random-int-form.lsp).
>    This is having great impact on flushing out compiler bugs in other
>    lisps, but I can't get it to run anything in gcl.  Could this be fixed?
> Finally: BROADCAST-STREAM isn't defined, but I haven't written stream
> tests yet.  This is breaking a few tests of other things.
>       Paul

Camm Maguire                                            address@hidden
"The earth is but one country, and mankind its citizens."  --  Baha'u'llah

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