aboutsummaryrefslogtreecommitdiff
path: root/lib/mlibc/options/ansi/musl-generic-math/rint.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/mlibc/options/ansi/musl-generic-math/rint.c')
-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/rint.c28
1 files changed, 0 insertions, 28 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/rint.c b/lib/mlibc/options/ansi/musl-generic-math/rint.c
deleted file mode 100644
index fbba390..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/rint.c
+++ /dev/null
@@ -1,28 +0,0 @@
-#include <float.h>
-#include <math.h>
-#include <stdint.h>
-
-#if FLT_EVAL_METHOD==0 || FLT_EVAL_METHOD==1
-#define EPS DBL_EPSILON
-#elif FLT_EVAL_METHOD==2
-#define EPS LDBL_EPSILON
-#endif
-static const double_t toint = 1/EPS;
-
-double rint(double x)
-{
- union {double f; uint64_t i;} u = {x};
- int e = u.i>>52 & 0x7ff;
- int s = u.i>>63;
- double_t y;
-
- if (e >= 0x3ff+52)
- return x;
- if (s)
- y = x - toint + toint;
- else
- y = x + toint - toint;
- if (y == 0)
- return s ? -0.0 : 0;
- return y;
-}