From: Aubrey Jaffer <agj@alum.mit.edu>
Subject: bug in eqv?
Date: Fri, 17 Mar 2006 22:42:55 -0500 (EST) [thread overview]
Message-ID: <20060318034255.6DF6E1B77C9@home.voluntocracy.org> (raw)
bash-2.05b$ guile --version
Guile 1.8.0 ...
bash-2.05b$ guile
guile> (= 0.0 -0.0)
#t
guile> (eqv? 0.0 -0.0)
#f
According to R5RS section "6.1 Equivalence predicates":
The `eqv?' procedure returns #t if:
* OBJ1 and OBJ2 are both numbers, are numerically equal (see
`=', section *note Numbers::), and are either both exact or
both inexact.
Because (= 0.0 -0.0) is #t, (eqv? 0.0 -0.0) must be #t.
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next reply other threads:[~2006-03-18 3:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-18 3:42 Aubrey Jaffer [this message]
2006-03-21 0:58 ` bug in eqv? Kevin Ryde
2006-03-21 23:52 ` Marius Vollmer
2006-03-24 0:17 ` Aubrey Jaffer
2006-03-24 21:56 ` Kevin Ryde
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