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-rw-r--r--libm/w_cosh.c34
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diff --git a/libm/w_cosh.c b/libm/w_cosh.c
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+/* Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+ * wrapper cosh(x)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+double
+cosh (double x)
+{
+#if __UCLIBC_HAS_FENV__
+ double z = __ieee754_cosh (x);
+ if (__builtin_expect (!isfinite (z), 0) && isfinite (x)
+ && _LIB_VERSION != _IEEE_)
+ return __kernel_standard (x, x, 5); /* cosh overflow */
+
+ return z;
+#else
+ return __ieee754_cosh (x);
+#endif
+}
+libm_hidden_def(cosh)