From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:00 -0500 Subject: lib: Add mlibc Signed-off-by: Ian Moffett --- lib/mlibc/options/ansi/musl-generic-math/__signbitf.c | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 lib/mlibc/options/ansi/musl-generic-math/__signbitf.c (limited to 'lib/mlibc/options/ansi/musl-generic-math/__signbitf.c') diff --git a/lib/mlibc/options/ansi/musl-generic-math/__signbitf.c b/lib/mlibc/options/ansi/musl-generic-math/__signbitf.c new file mode 100644 index 0000000..40ad3cf --- /dev/null +++ b/lib/mlibc/options/ansi/musl-generic-math/__signbitf.c @@ -0,0 +1,11 @@ +#include "libm.h" + +// FIXME: macro in math.h +int __signbitf(float x) +{ + union { + float f; + uint32_t i; + } y = { x }; + return y.i>>31; +} -- cgit v1.2.3