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Re: [Chicken-hackers] numerator/denominator


From: Thomas Bushnell BSG
Subject: Re: [Chicken-hackers] numerator/denominator
Date: Tue, 04 Aug 2009 09:47:12 -0700

On Tue, 2009-08-04 at 01:45 -0700, Elf wrote:
> not all flonums are rational.
> chicken is perfectly compliant with r5 here: r5 does not require the entire
> numeric tower.

1) On Chicken Scheme, all flonums *are* rational.
2) R5RS does not require a system to have rational numbers, but if  it
has them, it is required to support numerator and denominator on any "q"
type argument, that is, an argument for which rational? returns #t.

The manual *already* documents this as a deviation from the standard, it
just documents the deviation incorrectly.

Thomas






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