From nobody Mon Feb 03 16:24:45 2025 X-Original-To: hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4YmsKC4M1dz5m2LW for ; Mon, 03 Feb 2025 16:24:47 +0000 (UTC) (envelope-from des@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [96.47.72.83]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4YmsKC3d5Wz3cQ7; Mon, 03 Feb 2025 16:24:47 +0000 (UTC) (envelope-from des@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1738599887; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=awFsxExOo9NQFP37/emQveSB4S4oU18z1d+XRv9xzC4=; b=j8fGdu9g8XHhAVvFQI331hjsawR8NiITmczZ07GhVqJf5M/krz3jEy5uuxfsqwU9FhWjrb OBeC+hG2eeIH48FP8ue/eK7gVLydhHKTGZY73axcJtHKmj/j/Yy//3ZjulyzWu5t+BKcti 6ekQ1D3J9cXAJDdi9gy1Vef8geqlmAR4UV32cOJGK2SOPorelV5pLTRNeewy/x4pdlx6QI BmU9JooBactOMMZgSptPhnKQxA9b8BkAzZCnrH3Pd1GLXl7F4rrMYANARh+GCoSNjxG6mB BzOVqXUtRr9i1rD0nyorNOW/GXg/0/4BLWbON/Ljf1BXnYl02D4cR8PgsNJz2Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1738599887; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=awFsxExOo9NQFP37/emQveSB4S4oU18z1d+XRv9xzC4=; b=xXPecvtcKiVxIbhnqT0xZZEIBBboT7fj8GQmxGOoKClB8oDNz6cFXqK5M/AFTDsBU2+Hxn fe1cchXH12FR3v5gqQPhaCEdDoTeQj59FpLTjSUPvv7PDicsVXhfWcMCA9kDoqgiNaIq7e S9+FgKG0MmPe+emF2+r97LHP2DkZO3o6zeZ299JIM7+hV+95p1eCBVYusZbW1Q/PwkTbIC HF3KmmPMOFTSh6bRu/TYfjgF5HHSIGbonE8W6I3zCiM/zaZ4n1+HdP8k8uSoGYvLPb4hfs 0hFhFpZlDa5QC7BySI9/NXFdYYbgefuuCx+UP6Cy6OS1HDK9Meg+yngqOdYHow== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1738599887; a=rsa-sha256; cv=none; b=mWdOLepQTzceXUFSBHlXVakk+y8T9YureLCvFwbBOoZZHOhF+5+GidpwXkFC0oLyjc2OEK gNB8hMTxW0cfZ6RQXXZJRHgU6j1f3ptBjKBwPcjEGfks0nlcrp/OaSc0U/q6VOXfYIZkoo ItIiNQsLfAVa0E6RS5nhaMx+W0yHySgg7NhFsEIKXH8SybGFmWMQNtAQ3CmG2H3Os2piv+ dNMNcNPwSpBDunSEnGaIX0q6PEVYVkI5QxCGhR6y1RI7Zez+BHizOZDISUxvMz3UAa4tWC 9nOVVvofdmlnXchyn5Vc7aT+DpzMfmTnvxZvXyG8KkKEDt2vFqk9mokhb6Hxmg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from ltc.des.dev (unknown [IPv6:2a01:e0a:c54:bed0:922e:16ff:fef1:acef]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) (Authenticated sender: des) by smtp.freebsd.org (Postfix) with ESMTPSA id 4YmsKC23hXz1Hnq; Mon, 03 Feb 2025 16:24:47 +0000 (UTC) (envelope-from des@freebsd.org) Received: by ltc.des.dev (Postfix, from userid 1001) id 21D315836B; Mon, 03 Feb 2025 17:24:45 +0100 (CET) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: "Bjoern A. Zeeb" Cc: hackers@freebsd.org Subject: Re: %b with uint64_t? In-Reply-To: <157p941p-159p-rn75-2qo9-6762o7sprq40@yvfgf.mnoonqbm.arg> (Bjoern A. Zeeb's message of "Sat, 1 Feb 2025 01:07:37 +0000 (UTC)") References: <157p941p-159p-rn75-2qo9-6762o7sprq40@yvfgf.mnoonqbm.arg> User-Agent: Gnus/5.13 (Gnus v5.13) Date: Mon, 03 Feb 2025 17:24:45 +0100 Message-ID: <86frkvgfn6.fsf@ltc.des.dev> List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable "Bjoern A. Zeeb" writes: > I recently ran into a problem with a uint64_t bitflag to use the %b > print format in the kernel. The correct format string to print a uint64_t as binary is %w64b. You may have to disable -Wformat locally to get it to compile cleanly: #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wformat" printf("%w64b\n", num); #pragma GCC diagnostic pop DES --=20 Dag-Erling Sm=C3=B8rgrav - des@FreeBSD.org