From nobody Mon Apr 13 17:43:20 2026 X-Original-To: dev-commits-src-all@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 4fvZWd6cdTz6ZTMN for ; Mon, 13 Apr 2026 17:43:25 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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 "mxrelay.nyi.freebsd.org", Issuer "R12" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4fvZWd4ntDz3SSV for ; Mon, 13 Apr 2026 17:43:25 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776102205; 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=p7Qk3/Bsa+8JbHlLEpAZEpkfHGAzD9/RXQzg7vutvkc=; b=eo4CzIoygICW1qao2nGZYKby2BwFhBPMv2TLictlKNBmuvBq50QPI6oFa9KZ/+tL3+BoBq 79gjVyDlquTBFgD2qiTG1/N6NBdrCYfqumKgLknFlAwELgVRgAv+svg4Au5hVedW4K/Hhq 6IXORbg3YNrMkmMRoIAgrMc3h8OnJbe8c2MbBznrh8LnTEwzUX/jQNBSvsgs9F8Q4tlJx9 gK6YIxFwb5JdHwW2DrX/a6cLIIym7U6cbFYs+T4vhXK8JRhpZruet0ua5dE5sFbTRDJGa5 EIwI9OG5B5G6jDOmm8nBA9I8CvhImWjFbOjKSTmA8HBts8X6fg1EHEkBF4Etpg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1776102205; a=rsa-sha256; cv=none; b=utU1HQmxVc3D/c1U29FkoqihvEVCRTzQb40lNoKH9BAjWM6ntDr5YCeSvgV+GOfv0tni1P kzZDgJv4N9WkW2kxSEVTfwursLmz7UgbS5qmTbk7DrqSBEAhcv+hIqy5x0ruyvm/Ncu0Yd i5eSFbo5ie7vzg9oio7CmV0svIDSiPxhGTtJgwFq4+wW4FBgSzUdPs7CLepvLRvMXwMd7U RbbUAkUy1jmgUCPTimcYMD2StYrVIZKkwWQhTOCK+TNMJlGWtUDpkj1m5oqYhijHuGrim2 FMSE/p5aWvCi3D3AXQrdk0FCGOnPADUtw4V0LLFBRvy5hbxlDjqq2vIgF3W49A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1776102205; 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=p7Qk3/Bsa+8JbHlLEpAZEpkfHGAzD9/RXQzg7vutvkc=; b=rndui14k318QPiiMtm9xM4puM4JTECahikmEQArmNxmFXRR7hM6U/f5V6BOFt/APXDuzv0 LoVo6Ee1R54JAI2gJgoCtnwdyhg9+yyIwjNL284D3kYKi7G42WEr6BvPcl0dW2u84BvqYv rceXWIDbfgVw/JedjmfUvgDR8Wkr7crqUfa8AJcMIQsxPPNKGjN2/N/YsJlXyK8qppBjKc f78kfuloL8D8ZXT6SqpMw9qFiy0hXcySBPdefRjLLKVU+cpOaa19xZ1nRv14l7m5HJbZMD AqMtEe4wmogq11iG0eDDOXqIo0tHJuH5eLUY51TfHkPbQMZSF9DSXFl/5kn4aQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4fvZWd41XFz1M for ; Mon, 13 Apr 2026 17:43:25 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 31d6f by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Mon, 13 Apr 2026 17:43:20 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Ed Maste Subject: git: dc6149102509 - stable/14 - fmax.3: Add caveat for going beyond C std requirements List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: emaste X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: dc61491025091d9e61048cc3cfb18d25ed354a8b Auto-Submitted: auto-generated Date: Mon, 13 Apr 2026 17:43:20 +0000 Message-Id: <69dd2b38.31d6f.fc670d3@gitrepo.freebsd.org> The branch stable/14 has been updated by emaste: URL: https://cgit.FreeBSD.org/src/commit/?id=dc61491025091d9e61048cc3cfb18d25ed354a8b commit dc61491025091d9e61048cc3cfb18d25ed354a8b Author: Ed Maste AuthorDate: 2026-04-02 21:59:42 +0000 Commit: Ed Maste CommitDate: 2026-04-13 17:43:05 +0000 fmax.3: Add caveat for going beyond C std requirements libm's fmax and fmin family of functions treat +0.0 as greater than -0.0. This is not required by the C standard, so the user may not see this behaviour due to compiler optimization. PR: 294214 Reviewed by: fuz Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D56230 (cherry picked from commit 7764e9ca28a9702aed4ba7391e055ec2fcf35c41) (cherry picked from commit 855507463e0d3903d31aa7c084efbf4f819b5d63) --- lib/msun/man/fmax.3 | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/lib/msun/man/fmax.3 b/lib/msun/man/fmax.3 index 25fc9b6d518a..873a19375ce5 100644 --- a/lib/msun/man/fmax.3 +++ b/lib/msun/man/fmax.3 @@ -22,7 +22,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd June 29, 2004 +.Dd April 6, 2026 .Dt FMAX 3 .Os .Sh NAME @@ -68,10 +68,6 @@ functions return the smaller of .Fa x and .Fa y . -They treat -.Li +0.0 -as being larger than -.Li -0.0 . If one argument is an \*(Na, then the other argument is returned. If both arguments are \*(Nas, then the result is an \*(Na. These routines do not raise any floating-point exceptions. @@ -90,6 +86,13 @@ and .Fn fminl functions conform to .St -isoC-99 . +.Sh CAVEATS +The library implementations of these functions treat +.Li +0.0 +as being larger than +.Li -0.0 . +This behavior is not specified by the C standard, is not portable, +and may not occur in light of compiler optimizations. .Sh HISTORY These routines first appeared in .Fx 5.3 .