diff options
Diffstat (limited to 'lib/libm_dbl/__signbit.c')
| -rw-r--r-- | lib/libm_dbl/__signbit.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/libm_dbl/__signbit.c b/lib/libm_dbl/__signbit.c new file mode 100644 index 0000000000..18c6728a50 --- /dev/null +++ b/lib/libm_dbl/__signbit.c @@ -0,0 +1,12 @@ +#include "libm.h" + +int __signbitd(double x) +{ + union { + double d; + uint64_t i; + } y = { x }; + return y.i>>63; +} + + |