Re: [Gcl-devel] (random tester) Duplicate case values

[Camm Maguire]

Thanks again as always, Paul!  Should be fixed now in cvs head and
2.6.1. 

Take care,

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

> The random tester threw out this error.  Apparently duplicate case
> values (which are legal in lisp) can lead to illegal C code (where
> they are not) if the compiler can determine (by type information)
> that the case form can be compiled directly into a switch.  This test
> shows examples of a key duplicated in the same key list and between
> ifferent key lists.  See test misc.163, which is also show below:
> 
> (print
>   (funcall
>    (compile nil
>          '(lambda (b)
>             (declare (type (integer -15716 3947) b))
>             (case b
>               ((-7 -6 -6) :good)
>               ((-5 -6) :bad)
>               )))
> 
>    -6))
> 
> Compiling gazonk19.lsp.
> End of Pass 1.
> End of Pass 2.
> gazonk19.c: In function `L1':
> gazonk19.c:5224: duplicate case value
> gazonk19.c:5221: previously used here
> gazonk19.c:5233: duplicate case value
> gazonk19.c:5224: previously used here
> (SYSTEM "(cd . ;gcc -c -Wall -DVOL=volatile -fsigned-char -fwritable-strings 
> -pipe  -I/home/dietz/lib/gcl-2.7.0/unixport/../h  -O3 -fomit-frame-pointer -c 
> gazonk19.c -w)") returned a non-zero value 0.
> 
> Fast links are on: do (use-fast-links nil) for debugging
> Broken at UNLESS.  Type :H for Help.
> 
>       Paul
> 
> 
> 
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> 
> 
> 

-- 
Camm Maguire                                            address@hidden
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