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/copysignl.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 lib/mlibc/options/ansi/musl-generic-math/copysignl.c (limited to 'lib/mlibc/options/ansi/musl-generic-math/copysignl.c') diff --git a/lib/mlibc/options/ansi/musl-generic-math/copysignl.c b/lib/mlibc/options/ansi/musl-generic-math/copysignl.c new file mode 100644 index 0000000..9dd933c --- /dev/null +++ b/lib/mlibc/options/ansi/musl-generic-math/copysignl.c @@ -0,0 +1,16 @@ +#include "libm.h" + +#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 +long double copysignl(long double x, long double y) +{ + return copysign(x, y); +} +#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384 +long double copysignl(long double x, long double y) +{ + union ldshape ux = {x}, uy = {y}; + ux.i.se &= 0x7fff; + ux.i.se |= uy.i.se & 0x8000; + return ux.f; +} +#endif -- cgit v1.2.3