Date: Sat, 16 May 2026 05:06:40 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 277612] libc printf not compatible with glibc with negative nan Message-ID: <bug-277612-227-CiKSVlPASE@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-277612-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277612 --- Comment #4 from Paul Floyd <pjfloyd@wanadoo.fr> --- This issue resurfaced last week. We were using "0.0/0.0" as our NaN generator. Two fun facts. GCC generates code that does the division. On i386 and amd64 the result is a NaN with a negative sign bit. clang does compile time constant folding and produces a positive NaN, See this regression test failure and discussion: https://sourceforge.net/p/valgrind/mailman/valgrind-testresults/thread/202605070526.6475Q2BE072333%40localhost.orange.fr/#msg59331691 -- You are receiving this mail because: You are the assignee for the bug.home | help
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