From: David Kastrup <dak@gnu.org>
To: guile-user@gnu.org
Subject: Re: Comparison operators for strings /and/ numbers?
Date: Thu, 24 Aug 2017 10:05:07 +0200 [thread overview]
Message-ID: <87fuchxufg.fsf@fencepost.gnu.org> (raw)
In-Reply-To: 1503554737.21598.3.camel@qlfiles.net
Christopher Howard <christopher.howard@qlfiles.net> writes:
> Hi, in another lisp I have been working with, it has <, >, and ==
> (structure equality) operators which can take string arguments, number
> arguments, or a mixture of both. But it seems in guile that there are
> separate comparison operators for strings and for numbers. This makes
> sense but is not very convenient for my present purpose. Is there some
> other guile operators or extension operators that will handle both? I
> could make some I'm sure, but I don't want to reinvent the wheel.
(use-modules (oop goops))
(define-method (< (a <string>) . rest)
(apply string<? a rest))
(< "g" "b") ;; => #f
--
David Kastrup
next prev parent reply other threads:[~2017-08-24 8:05 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-24 6:05 Comparison operators for strings /and/ numbers? Christopher Howard
2017-08-24 8:05 ` David Kastrup [this message]
2017-09-19 4:27 ` Christopher Howard
2017-08-24 8:29 ` Arne Babenhauserheide
2017-08-24 10:17 ` Ralf Mattes
2017-08-24 17:58 ` Arne Babenhauserheide
2017-08-24 13:31 ` Chris Vine
2017-08-24 13:41 ` Chris Vine
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