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authorUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
committerUlrich Drepper <drepper@redhat.com>2005-12-14 15:06:39 +0000
commit9d13fb2413921c713f83efe331e8e4d219c62c6b (patch)
tree2d44d7ac45ab2d147eb8361bbff880c365aa8ad5 /math/w_atanh.c
parentb6ab06cef4670e02756bcdd4d2c33a49369a4346 (diff)
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Moved to csu/errno-loc.c.
Diffstat (limited to 'math/w_atanh.c')
-rw-r--r--math/w_atanh.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/math/w_atanh.c b/math/w_atanh.c
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+/* @(#)w_atanh.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * 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: w_atanh.c,v 1.6 1995/05/10 20:48:43 jtc Exp $";
+#endif
+
+/*
+ * wrapper atanh(x)
+ */
+
+#include <math.h>
+#include "math_private.h"
+
+
+#ifdef __STDC__
+	double __atanh(double x)		/* wrapper atanh */
+#else
+	double __atanh(x)			/* wrapper atanh */
+	double x;
+#endif
+{
+#ifdef _IEEE_LIBM
+	return __ieee754_atanh(x);
+#else
+	double z,y;
+	z = __ieee754_atanh(x);
+	if(_LIB_VERSION == _IEEE_ || __isnan(x)) return z;
+	y = fabs(x);
+	if(y>=1.0) {
+	    if(y>1.0)
+	        return __kernel_standard(x,x,30); /* atanh(|x|>1) */
+	    else
+	        return __kernel_standard(x,x,31); /* atanh(|x|==1) */
+	} else
+	    return z;
+#endif
+}
+weak_alias (__atanh, atanh)
+#ifdef NO_LONG_DOUBLE
+strong_alias (__atanh, __atanhl)
+weak_alias (__atanh, atanhl)
+#endif