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-rw-r--r--lib/msun/src/s_tanh.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/msun/src/s_tanh.c b/lib/msun/src/s_tanh.c
index 96e3565..6d26c69 100644
--- a/lib/msun/src/s_tanh.c
+++ b/lib/msun/src/s_tanh.c
@@ -37,10 +37,13 @@ __FBSDID("$FreeBSD$");
* only tanh(0)=0 is exact for finite argument.
*/
+#include <float.h>
+
#include "math.h"
#include "math_private.h"
-static const double one = 1.0, two = 2.0, tiny = 1.0e-300, huge = 1.0e300;
+static const volatile double tiny = 1.0e-300;
+static const double one = 1.0, two = 2.0, huge = 1.0e300;
double
tanh(double x)
@@ -75,3 +78,7 @@ tanh(double x)
}
return (jx>=0)? z: -z;
}
+
+#if (LDBL_MANT_DIG == 53)
+__weak_reference(tanh, tanhl);
+#endif
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