1 files changed, 0 insertions, 129 deletions
diff --git a/math/s_ctanh.c b/math/s_ctanh.c
deleted file mode 100644
index 2d18875..0000000
--- a/math/s_ctanh.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Complex hyperbole tangent for double.
-   Copyright (C) 1997-2016 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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <complex.h>
-#include <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__ctanh (__complex__ double x)
-{
-  __complex__ double res;
-
-  if (__glibc_unlikely (!isfinite (__real__ x) || !isfinite (__imag__ x)))
-    {
-      if (isinf (__real__ x))
-	{
-	  __real__ res = __copysign (1.0, __real__ x);
-	  if (isfinite (__imag__ x) && fabs (__imag__ x) > 1.0)
-	    {
-	      double sinix, cosix;
-	      __sincos (__imag__ x, &sinix, &cosix);
-	      __imag__ res = __copysign (0.0, sinix * cosix);
-	    }
-	  else
-	    __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else if (__imag__ x == 0.0)
-	{
-	  res = x;
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-
-	  if (isinf (__imag__ x))
-	    feraiseexcept (FE_INVALID);
-	}
-    }
-  else
-    {
-      double sinix, cosix;
-      double den;
-      const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2 / 2);
-
-      /* tanh(x+iy) = (sinh(2x) + i*sin(2y))/(cosh(2x) + cos(2y))
-	 = (sinh(x)*cosh(x) + i*sin(y)*cos(y))/(sinh(x)^2 + cos(y)^2).  */
-
-      if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
-	{
-	  __sincos (__imag__ x, &sinix, &cosix);
-	}
-      else
-	{
-	  sinix = __imag__ x;
-	  cosix = 1.0;
-	}
-
-      if (fabs (__real__ x) > t)
-	{
-	  /* Avoid intermediate overflow when the imaginary part of
-	     the result may be subnormal.  Ignoring negligible terms,
-	     the real part is +/- 1, the imaginary part is
-	     sin(y)*cos(y)/sinh(x)^2 = 4*sin(y)*cos(y)/exp(2x).  */
-	  double exp_2t = __ieee754_exp (2 * t);
-
-	  __real__ res = __copysign (1.0, __real__ x);
-	  __imag__ res = 4 * sinix * cosix;
-	  __real__ x = fabs (__real__ x);
-	  __real__ x -= t;
-	  __imag__ res /= exp_2t;
-	  if (__real__ x > t)
-	    {
-	      /* Underflow (original real part of x has absolute value
-		 > 2t).  */
-	      __imag__ res /= exp_2t;
-	    }
-	  else
-	    __imag__ res /= __ieee754_exp (2 * __real__ x);
-	}
-      else
-	{
-	  double sinhrx, coshrx;
-	  if (fabs (__real__ x) > DBL_MIN)
-	    {
-	      sinhrx = __ieee754_sinh (__real__ x);
-	      coshrx = __ieee754_cosh (__real__ x);
-	    }
-	  else
-	    {
-	      sinhrx = __real__ x;
-	      coshrx = 1.0;
-	    }
-
-	  if (fabs (sinhrx) > fabs (cosix) * DBL_EPSILON)
-	    den = sinhrx * sinhrx + cosix * cosix;
-	  else
-	    den = cosix * cosix;
-	  __real__ res = sinhrx * coshrx / den;
-	  __imag__ res = sinix * cosix / den;
-	}
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__ctanh, ctanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__ctanh, __ctanhl)
-weak_alias (__ctanh, ctanhl)
-#endif