Date: Tue, 28 Apr 2026 19:31:45 +0000 From: bugzilla-noreply@freebsd.org To: standards@FreeBSD.org Subject: [Bug 294719] lib/msun: Added fmaximum_mag_num Message-ID: <bug-294719-99-msutxD2h5i@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-294719-99@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294719 --- Comment #7 from Steve Kargl <kargl@FreeBSD.org> --- (In reply to Robert Clausecker from comment #4) I don't know the internals for libm's signbit(). Naively, I would have thought that both gcc and clang provide __builtin_signbit() with optimal implementations if one uses signbit(). I would follow the 'make it work, make it correct, and then make it fast' maxim. I haven't figured out what Jesus is trying to do with the force_except. Reading the description of fmaximum_num etc, I would try something like if (nan_x) { if (nan_y) return (x + y); if (issignaling(x)) feraiseexcept(FE_INVALID); return (y); } if (nan_y) { if (issignaling(y)) feraiseexcept(FE_INVALID); return (x); } -- You are receiving this mail because: You are the assignee for the bug.home | help
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