Re: [Scheme-reports] Formal Comment: R7RS 'eqv?' cannot be used for reliable memoization Mark H Weaver (20 Nov 2012 05:44 UTC)

Re: [Scheme-reports] Formal Comment: R7RS 'eqv?' cannot be used for reliable memoization Mark H Weaver 20 Nov 2012 05:39 UTC

John Cowan <cowan@mercury.ccil.org> writes:

> Alex Shinn scripsit:
>
>> Signed zero is primarily used by IEEE.  MPFR describes itself in terms
>> of IEEE.  The MPFR signed zero should therefore naturally behave like
>> IEEE, and I don't think a conforming implementation need even make
>> a disclaimer.
>
> +1

What matters is the text in the R7RS, not what two members of the
working group wrote in some obscure thread on a mailing list.

R7RS-draft-7 clearly requires the opposite of what you're suggesting.

    Mark

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