1 files changed, 0 insertions, 84 deletions
diff --git a/math/s_catanh.c b/math/s_catanh.c
deleted file mode 100644
index e15c073f96..0000000000
--- a/math/s_catanh.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Return arc hyperbole tangent for double value.
-   Copyright (C) 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#include <complex.h>
-#include <math.h>
-
-#include "math_private.h"
-
-
-__complex__ double
-__catanh (__complex__ double x)
-{
-  __complex__ double res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (rcls <= FP_INFINITE || icls <= FP_INFINITE)
-    {
-      if (icls == FP_INFINITE)
-	{
-	  __real__ res = __copysign (0.0, __real__ x);
-	  __imag__ res = __copysign (M_PI_2, __imag__ x);
-	}
-      else if (rcls == FP_INFINITE || rcls == FP_ZERO)
-	{
-	  __real__ res = __copysign (0.0, __real__ x);
-	  if (icls >= FP_ZERO)
-	    __imag__ res = __copysign (M_PI_2, __imag__ x);
-	  else
-	    __imag__ res = __nan ("");
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-	}
-    }
-  else if (rcls == FP_ZERO && icls == FP_ZERO)
-    {
-      res = x;
-    }
-  else
-    {
-      double i2, num, den;
-
-      i2 = __imag__ x * __imag__ x;
-
-      num = 1.0 + __real__ x;
-      num = i2 + num * num;
-
-      den = 1.0 - __real__ x;
-      den = i2 + den * den;
-
-      __real__ res = 0.25 * (__ieee754_log (num) - __ieee754_log (den));
-
-      den = 1 - __real__ x * __real__ x - i2;
-
-      __imag__ res = 0.5 * __ieee754_atan2 (2.0 * __imag__ x, den);
-    }
-
-  return res;
-}
-weak_alias (__catanh, catanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catanh, __catanhl)
-weak_alias (__catanh, catanhl)
-#endif