Description:
The Scheme Programming language.
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Who uses SRFI 69 or R6RS hash tables with arbitrary hash functions?
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I'd like to hear from Schemers who make use of hash tables, either the SRFI 69 or the R6RS flavor, that need to go beyond the classic five equivalence predicates, namely `eq?`, `eqv?`, `equal?`, `string=?`, and `string-ci=?`. When do you use them? What equivalence predicates do you use? What hash functions accompany them?... more »
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gtk-based listener
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A gtk-based listener is available: glistener.c and glistener.h in
[link], or in
the s7 tarball, or in the Snd sources. Documented in glistener.h
and [link].
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GNU Guix 0.2 released
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We are pleased to announce GNU Guix version 0.2, the second alpha
release, representing 580 commits by 5 people over 4 months.
• About
GNU Guix is a functional package manager and distribution of
the GNU system.
In addition to standard package management features, Guix supports... more »
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Withdrawn SRFI 103: Library Files
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This announces that
Scheme Request for Implementation 103
"Library Files"
by Derick Eddington.
has gone into ``withdrawn'' status.
The document and an archive of the discussion is available at
[link]
Regards,
The SRFI Editors
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SRFI-110 wrapping up - please comment now!
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SRFI-110 (sweet-expressions aka t-expressions) is a draft SRFI defining an extension of s-expressions that infers parentheses from indentation.
If you have comments, please join the mailing list and post them now!!
More information here:
[link]
Thanks!
--- David A. Wheeler... more »
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macro help
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Hi. Can anyone help me understand why num isn't recognized? thanks
(define-syntax macro-test
(syntax-rules ()
((_ body ...)
(let ((num 2))
body ...))))
(macro-test (print 1) (print (* num num)))
=> Error: unbound variable: num
Call history:
<eval> (##sys#eq? l7052 (quote ()))... more »
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Lisp in Summer Projects
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Have you ever found an open source project that you wish was written in lisp?
Are you someone who has always been meaning to program in lisp, but haven't found the right motivation?
Is there an open source project that you have been meaning to contribute to, but instead you're stuck on the couch playing video games?... more »
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Racket v5.3.4
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Racket version 5.3.4 is now available from
[link]
* Extflonums (80-bit floating-point numbers) are supported on some
x86/x86_64 platforms -- including Windows, and including platforms
where Racket is compiled to use SSE instructions for flonum
arithmetic. Thanks to Michael Filonenko.... more »
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