diff options
| author | Kacper <kacper@mail.openlinux.dev> | 2025-12-09 19:20:15 +0100 |
|---|---|---|
| committer | Kacper <kacper@mail.openlinux.dev> | 2025-12-09 19:20:15 +0100 |
| commit | 885f5974cdf65b59415837ae97f5a14ef1350670 (patch) | |
| tree | 66ac13de29c7f4932c5fcae11773df574e4e256a /lib/libm/copysign.c | |
| parent | 8f9e448b2ef6db7cd905540c21f3c5b190e7a1e7 (diff) | |
feat: add gzip and new headers
Diffstat (limited to 'lib/libm/copysign.c')
| -rw-r--r-- | lib/libm/copysign.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/libm/copysign.c b/lib/libm/copysign.c new file mode 100644 index 00000000..26982cea --- /dev/null +++ b/lib/libm/copysign.c @@ -0,0 +1,12 @@ +#include "libm.h" + +double copysign(double x, double y) +{ + union { + double f; + uint64_t i; + } ux = { x }, uy = { y }; + ux.i &= -1ULL / 2; + ux.i |= uy.i & 1ULL << 63; + return ux.f; +} |