2.5-18.1

math/w_atanhl.c

@@ -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)