From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: question about Qnil representation Date: Thu, 27 Oct 2022 08:47:13 +0800 Message-ID: <87a65i854e.fsf@yahoo.com> References: <5a560265-fa81-42d2-945b-ab85d72df9e6@Spark> <5a00e93e-5f44-4865-aeeb-51f0aced9996@Spark> <87ilk6a7be.fsf@rfc20.org> <83wn8mmt49.fsf@gnu.org> <168eb4b5-40be-43dc-8501-dc9f4c65c56f@Spark> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39902"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Eli Zaretskii , emacs-devel@gnu.org, matt@rfc20.org To: Troy Hinckley Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Thu Oct 27 02:48:53 2022 Return-path: Envelope-to: ged-emacs-devel@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 1onr4n-000AGi-6Y for ged-emacs-devel@m.gmane-mx.org; Thu, 27 Oct 2022 02:48:53 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1onr3Q-0007es-Hs; Wed, 26 Oct 2022 20:47:28 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1onr3N-0007U2-SV for emacs-devel@gnu.org; Wed, 26 Oct 2022 20:47:26 -0400 Original-Received: from sonic310-25.consmr.mail.ne1.yahoo.com ([66.163.186.206]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1onr3M-0001Ck-8F for emacs-devel@gnu.org; Wed, 26 Oct 2022 20:47:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1666831642; bh=BUlyr8tYcW55dHvDVbHrEDoYGVch/IW7ZXn9zGe+B1s=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=glRO3bmhQHW92MmgBz/GrOIxsu7q7S60/m97v2ZTd+GDPm6+p6MzfOLWwuxmDmROuOO3a1M0ytEGpWK+FvL7JY2XzpR1996ipiPs1nKdPh4nx/qNmB8BAWXg5DSxepjOdUEDWOP8BC3dh3tFGP9HfWg0y7G53t/daQ0NbPSlNxhaK1UUQ5mQGaEZWFnRqhPtJDv0QWIq5zwHFQLjKBqAeRGLOFPHkhNFb64G81ybNpG8265teEWcrKM2gBol4NraPOmkweKCl7C2yRfPFHCcfZw6yDGITHAbiYzutc9VomdQqo/s4vKf0g0Vz7BrLdflZL+M03ieNdLqZhdaMEyTig== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1666831642; bh=PU11g91tdiy2lTAq+tUJ94uiHR6CYaMre5xpIH8KQDN=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=aQ8RB/A6mIxWgfyzws1TxrOZBZzVsYXSgTvNg7GrsFyBEuT3spvyjNTy1Rl43kAdFk5ym58R5zPu/zr6bKxMYa6sNahh9eV3LpETMFv79RsmMfh2d2577jUkrxxhwv2btB/+fE69/gFVGDu5y8qhOcHF5OKbLS9Ke/OtlC2vUiJYdjrv3mF6fOCdW8lEfX3fCl+Ydy18lOnx6yCPClipqDjvGr7WGD7d2ZOUpjCnky9fSlCtnhUQT1AotNcTeOgbEmV97Wlr8TWypSc3Lx8P6OvkP2kbou6D/4/2AhHQyql1k5u8JqDeTxwQPuLnW4KfB+urdBu0E1y1RKeSVtizzw== X-YMail-OSG: vFWT6SUVM1nMmZWb9t6a1v350mKd5W43sW2c5WER.Ea7oi0ipx3X47n2UwRLc5N C125w8KVQkzuS_0kGNUHgXP8tM7pnO7V0dGwA0S2lHY3OQj23ZVC7wuALz.cXY2FM1deyHm3VuAT DdnXYBlo6kGDiZthtNgev5AralL.ieLrpbYAv3SkEWXWiJgvhEH0ZMP0437cQ8Ix0joguBhW0zxV TzzIBrGDWtFy6ho29puOnYfWohVY4ZM3le87LugRFZp4bTyNUL6DT3jO7cvKT1i0YsU2SUTPRTWc WG.vMvRgqAU9FhoZgGxibDJNqgIOJhDKLBatbvLmeeT_ak4uLAua.cz4jbt_323mZzJQi2sx1lPM qWFx24D0zg8Tio0HwkoPgSt.Ifg6WsH__59kJPVbXQhCyQYZKjlPISYGD1c6l2EeDygF.vFmMgOy QFfnHLEkaa4.wDZB6BknnP3N5EoMJFa3vgL9h_wTv8F197HLl2S2ZeZPaeIRH0rpLC.ow4LMd6TO eUCt981E7XQP9rLCvsGyLaCxiONfLOdnPk5eaI.6cYsQWwBQvQyYwT8T0zcpEKLd6jZxfM9uWWUS Pp1Xmbt_6HZHgCXLWUzBlXGgU7fPBUflFXQhehJNKNsCdzIJIL1Q4NX9aiNyFydMtTZSW0EKDnRk D74tCikOc5foaS4bxe9.HLJSn.gCSXsJlfvdHkHh9b8F3jCNet.eYYtIMpS24R19G31p3rdRrGd4 Bx0PlPpTqW1Qhilx_g05kCFEPbsT9NcNKiT8uSl2tUz7wDjk_F_KsQRH58RMD8s_XBcUemn7BAMO K0z0NcfgFe4rFmurV5lhRmCgxcxjzG89VVDD9uhYXr X-Sonic-MF: Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic310.consmr.mail.ne1.yahoo.com with HTTP; Thu, 27 Oct 2022 00:47:22 +0000 Original-Received: by hermes--production-sg3-74fb94585-5k8np (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID 597040795348c8942f4873ed9c8460bf; Thu, 27 Oct 2022 00:47:18 +0000 (UTC) In-Reply-To: <168eb4b5-40be-43dc-8501-dc9f4c65c56f@Spark> (Troy Hinckley's message of "Wed, 26 Oct 2022 12:46:39 -0600") X-Mailer: WebService/1.1.20783 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.186.206; envelope-from=luangruo@yahoo.com; helo=sonic310-25.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: "Emacs-devel" Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:298588 Archived-At: Troy Hinckley writes: > Ah, thank you. So it is not a pointer but an index. Is lispsym array > resizable or is there a static limit to the number of symbols? It is a static array, but we don't actually care about its bounds; it's only used to provide the base address to which the offset in a tagged symbol is added.