1 files changed, 0 insertions, 84 deletions
diff --git a/math/s_ctan.c b/math/s_ctan.c
deleted file mode 100644
index 0464ab86d5..0000000000
--- a/math/s_ctan.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Complex tangent function for double.
-   Copyright (C) 1997, 2005 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 <fenv.h>
-#include <math.h>
-
-#include "math_private.h"
-
-
-__complex__ double
-__ctan (__complex__ double x)
-{
-  __complex__ double res;
-
-  if (!isfinite (__real__ x) || !isfinite (__imag__ x))
-    {
-      if (__isinf (__imag__ x))
-	{
-	  __real__ res = __copysign (0.0, __real__ x);
-	  __imag__ res = __copysign (1.0, __imag__ x);
-	}
-      else if (__real__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-
-#ifdef FE_INVALID
-	  if (__isinf (__real__ x))
-	    feraiseexcept (FE_INVALID);
-#endif
-	}
-    }
-  else
-    {
-      double sin2rx, cos2rx;
-      double den;
-
-      __sincos (2.0 * __real__ x, &sin2rx, &cos2rx);
-
-      den = cos2rx + __ieee754_cosh (2.0 * __imag__ x);
-
-      if (den == 0.0)
-	{
-	  __complex__ double ez = __cexp (1.0i * x);
-	  __complex__ double emz = __cexp (-1.0i * x);
-
-	  res = (ez - emz) / (ez + emz) * -1.0i;
-	}
-      else
-	{
-	  __real__ res = sin2rx / den;
-	  __imag__ res = __ieee754_sinh (2.0 * __imag__ x) / den;
-	}
-    }
-
-  return res;
-}
-weak_alias (__ctan, ctan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__ctan, __ctanl)
-weak_alias (__ctan, ctanl)
-#endif