From 30bd4a6cc3a093fdb32db26ee8bc30cd7ef47622 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Sun, 28 Dec 2008 22:15:07 +0000
Subject: remove many functions which just call __ieee754_<function>, define
 them as aliases instead.

    text           data     bss     dec     hex filename
-  45402            180       4   45586    b212 lib/libm-0.9.30-svn.so
+  45302            180       4   45486    b1ae lib/libm-0.9.30-svn.so
---
 libm/e_atanh.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'libm/e_atanh.c')

diff --git a/libm/e_atanh.c b/libm/e_atanh.c
index 673ef0cd6..5cf4da3b8 100644
--- a/libm/e_atanh.c
+++ b/libm/e_atanh.c
@@ -54,3 +54,26 @@ double attribute_hidden __ieee754_atanh(double x)
 	    t = 0.5*log1p((x+x)/(one-x));
 	if(hx>=0) return t; else return -t;
 }
+
+/*
+ * wrapper atanh(x)
+ */
+#ifndef _IEEE_LIBM
+double atanh(double x)
+{
+	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) */
+		return __kernel_standard(x, x, 31); /* atanh(|x|==1) */
+	}
+	return z;
+}
+#else
+strong_alias(__ieee754_atanh, atanh)
+#endif
+libm_hidden_def(atanh)
-- 
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