From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Joseph Turner Newsgroups: gmane.emacs.devel Subject: How to get buffer byte length (not number of characters)? Date: Tue, 20 Aug 2024 00:10:50 -0700 Message-ID: <87wmkbekjp.fsf@ushin.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="23480"; mail-complaints-to="usenet@ciao.gmane.io" To: Emacs Devel Mailing List Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Aug 20 13:06:26 2024 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 1sgMgy-0005vS-SE for ged-emacs-devel@m.gmane-mx.org; Tue, 20 Aug 2024 13:06:25 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sgMg4-00052h-Iv; Tue, 20 Aug 2024 07:05:28 -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 1sgJ1I-0000YJ-4D for emacs-devel@gnu.org; Tue, 20 Aug 2024 03:11:09 -0400 Original-Received: from out-187.mta0.migadu.com ([91.218.175.187]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sgJ1C-0000is-W8 for emacs-devel@gnu.org; Tue, 20 Aug 2024 03:11:07 -0400 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ushin.org; s=key1; t=1724137856; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=oy2OnqcZpn2o43PyT7kypUFfh/T0cTo7tSSAenU9Tnc=; b=ilUzY7tZIoJodBjSYcn3i8aPl9kn5bgjfzIh4/HOoyhK/RquT4zkyPkfmiYNaO52S+Bewd cX2C1aHvuHYM27yIsX+KukIJjzlSlIFd8GB5GgfZXUb3U0PQqHRqHzCtyRe375tQR5OtYe 0IRFHBHtnfVjf7+GBOt3tfq43lxOxpJPzmUbK24FBnkZMZxVjr5YA2ZUA0EShcBN2ka4BB VURcaRKxgRHZt+jJs4EUYk3KxKPEHan0lHVPTFuafWOxuGJek6x3aky0qV+DkTHFYNYE4i fvz3Sf0qVUH/cqzIZWAcToLPgnmlR9H157bwdyE0RDtcZDJJSPQtcq9uskE/Tw== X-Migadu-Flow: FLOW_OUT Received-SPF: pass client-ip=91.218.175.187; envelope-from=joseph@ushin.org; helo=out-187.mta0.migadu.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, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Tue, 20 Aug 2024 07:05:25 -0400 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: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:322954 Archived-At: Hello! `buffer-size' returns the number of characters in a buffer: (with-temp-buffer (insert "=E4=BD=A0=E5=A5=BD") (buffer-size)) ;; 2 However, the buffer's byte length may be larger: (let* ((filename (make-temp-file "buffer-size-test-")) (file (with-temp-file filename (insert "=E4=BD=A0=E5=A5=BD")))) (file-attribute-size (file-attributes filename))) ;; 6 How can I get a buffer's byte length without writing to a file? Thank you! Joseph