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Re: (case ...)
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From: |
Marijn Schouten (hkBst) |
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Subject: |
Re: (case ...) |
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Date: |
Wed, 23 May 2007 13:07:06 +0200 |
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User-agent: |
Thunderbird 2.0.0.0 (X11/20070419) |
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Ludovic � wrote:
> Hi,
>
> "Marijn Schouten (hkBst)" <address@hidden> writes:
>
>> define (num->bool i)
>> (case i
>> ('0 #f)
>> ('1 #t)))
>
> Is this valid R5RS code? I would say no since it is neither a <clause>
> nor an "else clause".
>
> (Your next message seems to imply that it is indeed incorrect.)
>
> Thanks,
> Ludovic.
The datums of the clauses are "(quote 0)" and "(quote 1)", each of which is
valid on its own, but since the datum "quote" is contained in both clauses,
the two of them together are invalid,
Marijn
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