Generic w_atanhl.c.
authordrepper <drepper>
Wed, 14 Dec 2005 11:39:55 +0000 (11:39 +0000)
committerdrepper <drepper>
Wed, 14 Dec 2005 11:39:55 +0000 (11:39 +0000)
math/w_atanhl.c [new file with mode: 0644]

diff --git a/math/w_atanhl.c b/math/w_atanhl.c
new file mode 100644 (file)
index 0000000..5ce53b8
--- /dev/null
@@ -0,0 +1,52 @@
+/* w_atanhl.c -- long double version of w_atanh.c.
+ * Conversion to long double by Ulrich Drepper,
+ * Cygnus Support, drepper@cygnus.com.
+ */
+
+/*
+ * ====================================================
+ * 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.
+ * ====================================================
+ */
+
+#if defined(LIBM_SCCS) && !defined(lint)
+static char rcsid[] = "$NetBSD: $";
+#endif
+
+/*
+ * wrapper atanhl(x)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+
+#ifdef __STDC__
+       long double __atanhl(long double x)     /* wrapper atanhl */
+#else
+       long double __atanhl(x)                 /* wrapper atanhl */
+       long double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+       return __ieee754_atanhl(x);
+#else
+       long double z,y;
+       z = __ieee754_atanhl(x);
+       if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z;
+       y = fabsl(x);
+       if(y>=1.0) {
+           if(y>1.0)
+               return __kernel_standard(x,x,230); /* atanhl(|x|>1) */
+           else
+               return __kernel_standard(x,x,231); /* atanhl(|x|==1) */
+       } else
+           return z;
+#endif
+}
+weak_alias (__atanhl, atanhl)