From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mortimer Cladwell Newsgroups: gmane.lisp.guile.user Subject: Meaning of <=> in the context of procedures Date: Wed, 2 Jun 2021 10:06:08 -0400 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="18591"; mail-complaints-to="usenet@ciao.gmane.io" To: guile-user@gnu.org Original-X-From: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Wed Jun 02 16:54:56 2021 Return-path: Envelope-to: guile-user@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1loSGl-0004f6-CB for guile-user@m.gmane-mx.org; Wed, 02 Jun 2021 16:54:55 +0200 Original-Received: from localhost ([::1]:45786 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1loSGk-0006AB-D9 for guile-user@m.gmane-mx.org; Wed, 02 Jun 2021 10:54:54 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49562) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1loRVn-0007oD-Ci for guile-user@gnu.org; Wed, 02 Jun 2021 10:06:23 -0400 Original-Received: from mail-oi1-x22d.google.com ([2607:f8b0:4864:20::22d]:33427) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1loRVl-0003Na-Pz for guile-user@gnu.org; Wed, 02 Jun 2021 10:06:23 -0400 Original-Received: by mail-oi1-x22d.google.com with SMTP id b25so2816166oic.0 for ; Wed, 02 Jun 2021 07:06:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=JJ0dlTXu83W0teATbfIW3osel5M79JdVinmW57Kmorc=; b=nLQJJeBVAg0Lb6KdUUlybwVLnR32OrqS+MTOBPXUSJ1EH77tIJ58KwhNsuEcDzLVyf qQ6D6kL/VcMwyhtD5M+iS0WlSonDsrpG9WLG2k6Tn/JFNyW8hq2lLscJBNtUuPASzxsq lTfYDaRxQ2LWlch0ZtKW/12auJQvcDrrPVrEGzCmcrNns3MP/IbqsKndTI4DyfS+NNOO bHTCw4xZ/9fgeuyV4wvyeZWQSC1qrES0aesIWGxDb1QOhgbKk3YWkhRWeMXPIQwlTc5u xRwevK1CA3r5l0jLr+iPY0Uxui4HN9tsqjNUQIivrrH0rT8Qt/FrxQqGPRQpoD3+zYeq R1HA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=JJ0dlTXu83W0teATbfIW3osel5M79JdVinmW57Kmorc=; b=BAHiHn1Q2+7RmmD0dv9mi6QMEIjtTEVmWjJR7tIR4kP4A8VDmsJuKggd5CndDOYlF7 QZi3X+/jUGYzIxz/xnbxbqWyQ4E3uh0KsFNrLXio1letwFVuieHxSbAcR3sNtb12pCjW RcWprv3k6x9OxjOmV/gvok5zE0uwAugsoYuQaTwyt432vXsDq2pfIwmqJ9y1O6u2hNMP 4biugczyhvUj4fjLW62lrwA2QoP+a2Z7qJWjvNd2iVcy6WeNwNESLqlAUBWbo7ncSdn8 m2PhYHwcnCLhxgYpcVmJcuauyMm4ZEUc2WfeiSzCVWyVHFjO/yLRyG/+BcG+M5iBK1uS Snwg== X-Gm-Message-State: AOAM530ub1/qZ0WtT60bXRNuNrN2GUTkf3ljzgCxbN8r8ILp3hTpwcXl BFNr5PBx47VwuhLZ473iEFldDi4jVf6TpMZTYB9g7mqsWbmZqg== X-Google-Smtp-Source: ABdhPJxJDKAQu0EHBrXRAJdw/18EoR6z4xPmbysOfaZIsyIZHRmVQCvGe5bBqoNbIRvkAxSK7ESsmqZiIk2ChsdFWx4= X-Received: by 2002:a05:6808:4c6:: with SMTP id a6mr21174634oie.162.1622642779111; Wed, 02 Jun 2021 07:06:19 -0700 (PDT) Received-SPF: pass client-ip=2607:f8b0:4864:20::22d; envelope-from=mbcladwell@gmail.com; helo=mail-oi1-x22d.google.com X-Spam_score_int: 6 X-Spam_score: 0.6 X-Spam_bar: / X-Spam_report: (0.6 / 5.0 requ) BAYES_50=0.8, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 02 Jun 2021 10:54:41 -0400 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-user-bounces+guile-user=m.gmane-mx.org@gnu.org Original-Sender: "guile-user" Xref: news.gmane.io gmane.lisp.guile.user:17562 Archived-At: Hi, What does <=> mean/do? It can be found in guile-json in the (json record) module, line 33: 33 #:export (<=> define-json-mapping define-json-type)) Not mentioned in the entire Guile manual. Happens to be defined on line 36 of the module: 36 (define <=> '<=>) I didn't find that very helpful :) Thanks Mortimer