X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;ds=inline;f=src%2Fmath%2Frint.c;h=fbba390e7d723774d41ba2a9da74957c20643d63;hb=37cd1676395e5ebdae3f372bf59d4fef54be9818;hp=81f4e6223b748b59db415725a9b07a8969dfeac4;hpb=d1a2ead878c27ac4ec600740320f8b76e1f961e9;p=musl

diff --git a/src/math/rint.c b/src/math/rint.c
index 81f4e622..fbba390e 100644
--- a/src/math/rint.c
+++ b/src/math/rint.c
@@ -1,6 +1,14 @@
+#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};
@@ -11,9 +19,9 @@ double rint(double x)
 	if (e >= 0x3ff+52)
 		return x;
 	if (s)
-		y = (double)(x - 0x1p52) + 0x1p52;
+		y = x - toint + toint;
 	else
-		y = (double)(x + 0x1p52) - 0x1p52;
+		y = x + toint - toint;
 	if (y == 0)
 		return s ? -0.0 : 0;
 	return y;