[debbugs-tracker] bug#16356: closed (doc out of date about (integer? +inf.0))

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Your message dated Wed, 08 Jan 2014 22:56:44 -0500
with message-id <address@hidden>
and subject line Re: bug#16356: doc out of date about (integer? +inf.0)
has caused the debbugs.gnu.org bug report #16356,
regarding doc out of date about (integer? +inf.0)
to be marked as done.

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16356: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16356
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> --- Begin Message ---
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> Subject: 
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> doc out of date about (integer? +inf.0)
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> Date: 
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> Sun, 5 Jan 2014 22:54:35 +0000
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> The "Integers" node of the guile info document contains this gem (source
> in doc/ref/api-data.texi):
>
>           (integer? +inf.0)
>           => #t
>
> Actual guile-2.0.9 behaviour:
>
> scheme@(guile-user)> (integer? +inf.0)
> $16 = #f
>
> The doc example matches the behaviour of guile-1.8, which classifies
> +inf.0 and -inf.0 as integers, and +nan.0 as rational but not integer.
> guile-2.0 follows R6RS in treating all three of these values as real
> but not rational, and the "Reals and Rationals" node describes this
> accurately.
>
> Debian incarnation of this bug report:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=734323
>
> Mathematically, infinities are not real, and NaN is, as the acronym says,
> not a number.  The documentation could perhaps do with a note about
> the difference between mathematical terminology and Scheme terminology.
> I was rather surprised to find any discrepancy, as Scheme's numerical
> tower stands out among programming languages as being uniquely accurate
> in its use of mathematical terms.  Scheme's concept of "real" more
> closely corresponds to the mathematical concept of "hyperreal", which
> includes infinities, although NaN doesn't fit.  Scheme's "complex" is
> similarly extended relative to the mathematical complex numbers, but
> the mathematical term "hypercomplex" unfortunately refers to something
> quite different (quaternions and the like).
>
> -zefram
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#16356: doc out of date about (integer? +inf.0)
>
>
>
>
> Date: 
>
> Wed, 08 Jan 2014 22:56:44 -0500
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
>
>
>
>
> Zefram <address@hidden> writes:
>
> > The "Integers" node of the guile info document contains this gem (source
> > in doc/ref/api-data.texi):
> >
> >           (integer? +inf.0)
> >           => #t
> >
> > Actual guile-2.0.9 behaviour:
> >
> > scheme@(guile-user)> (integer? +inf.0)
> > $16 = #f
>
> Fixed in f659df44954a7f182361395396c5e0340b08c7dd on the stable-2.0
> branch, which will become Guile 2.0.10.
>
>    Thanks!
>      Mark
>
>
> --- End Message ---