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| author | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
|---|---|---|
| committer | Vladimir Azarov <avm@intermediate-node.net> | 2024-10-01 15:47:05 +0200 |
| commit | 4abab5ad6c8465a7528ccdd5f49367da05f78bbd (patch) | |
| tree | ebf009bf1376a5a223a915bc27cbbd791a1316bc /src/math/__signbitl.c | |
Initial version
Diffstat (limited to 'src/math/__signbitl.c')
| -rw-r--r-- | src/math/__signbitl.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/math/__signbitl.c b/src/math/__signbitl.c new file mode 100644 index 0000000..63b3dc5 --- /dev/null +++ b/src/math/__signbitl.c @@ -0,0 +1,14 @@ +#include "libm.h" + +#if (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384 +int __signbitl(long double x) +{ + union ldshape u = {x}; + return u.i.se >> 15; +} +#elif LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 +int __signbitl(long double x) +{ + return __signbit(x); +} +#endif |