From d5602cebf1ff25ef34298a52209283879609ec16 Mon Sep 17 00:00:00 2001
From: "Paul E. Murphy" <murphyp@linux.vnet.ibm.com>
Date: Tue, 28 Jun 2016 11:06:42 -0500
Subject: Convert _Complex tangent functions to generated code

This converts s_c{,a}tan{,h}{f,,l} into a single
templated file c{,a}tan{,h}_template.c with the
exception of alpha.
---
 math/s_catan.c | 143 ---------------------------------------------------------
 1 file changed, 143 deletions(-)
 delete mode 100644 math/s_catan.c

(limited to 'math/s_catan.c')

diff --git a/math/s_catan.c b/math/s_catan.c
deleted file mode 100644
index 5ab4c0d..0000000
--- a/math/s_catan.c
+++ /dev/null
@@ -1,143 +0,0 @@
-/* Return arc tangent of complex double value.
-   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 <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__catan (__complex__ double x)
-{
-  __complex__ double res;
-  int rcls = fpclassify (__real__ x);
-  int icls = fpclassify (__imag__ x);
-
-  if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
-    {
-      if (rcls == FP_INFINITE)
-	{
-	  __real__ res = __copysign (M_PI_2, __real__ x);
-	  __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else if (icls == FP_INFINITE)
-	{
-	  if (rcls >= FP_ZERO)
-	    __real__ res = __copysign (M_PI_2, __real__ x);
-	  else
-	    __real__ res = __nan ("");
-	  __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else if (icls == FP_ZERO || icls == FP_INFINITE)
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __copysign (0.0, __imag__ x);
-	}
-      else
-	{
-	  __real__ res = __nan ("");
-	  __imag__ res = __nan ("");
-	}
-    }
-  else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
-    {
-      res = x;
-    }
-  else
-    {
-      if (fabs (__real__ x) >= 16.0 / DBL_EPSILON
-	  || fabs (__imag__ x) >= 16.0 / DBL_EPSILON)
-	{
-	  __real__ res = __copysign (M_PI_2, __real__ x);
-	  if (fabs (__real__ x) <= 1.0)
-	    __imag__ res = 1.0 / __imag__ x;
-	  else if (fabs (__imag__ x) <= 1.0)
-	    __imag__ res = __imag__ x / __real__ x / __real__ x;
-	  else
-	    {
-	      double h = __ieee754_hypot (__real__ x / 2.0, __imag__ x / 2.0);
-	      __imag__ res = __imag__ x / h / h / 4.0;
-	    }
-	}
-      else
-	{
-	  double den, absx, absy;
-
-	  absx = fabs (__real__ x);
-	  absy = fabs (__imag__ x);
-	  if (absx < absy)
-	    {
-	      double t = absx;
-	      absx = absy;
-	      absy = t;
-	    }
-
-	  if (absy < DBL_EPSILON / 2.0)
-	    {
-	      den = (1.0 - absx) * (1.0 + absx);
-	      if (den == -0.0)
-		den = 0.0;
-	    }
-	  else if (absx >= 1.0)
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-	  else if (absx >= 0.75 || absy >= 0.5)
-	    den = -__x2y2m1 (absx, absy);
-	  else
-	    den = (1.0 - absx) * (1.0 + absx) - absy * absy;
-
-	  __real__ res = 0.5 * __ieee754_atan2 (2.0 * __real__ x, den);
-
-	  if (fabs (__imag__ x) == 1.0
-	      && fabs (__real__ x) < DBL_EPSILON * DBL_EPSILON)
-	    __imag__ res = (__copysign (0.5, __imag__ x)
-			    * (M_LN2 - __ieee754_log (fabs (__real__ x))));
-	  else
-	    {
-	      double r2 = 0.0, num, f;
-
-	      if (fabs (__real__ x) >= DBL_EPSILON * DBL_EPSILON)
-		r2 = __real__ x * __real__ x;
-
-	      num = __imag__ x + 1.0;
-	      num = r2 + num * num;
-
-	      den = __imag__ x - 1.0;
-	      den = r2 + den * den;
-
-	      f = num / den;
-	      if (f < 0.5)
-		__imag__ res = 0.25 * __ieee754_log (f);
-	      else
-		{
-		  num = 4.0 * __imag__ x;
-		  __imag__ res = 0.25 * __log1p (num / den);
-		}
-	    }
-	}
-
-      math_check_force_underflow_complex (res);
-    }
-
-  return res;
-}
-weak_alias (__catan, catan)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__catan, __catanl)
-weak_alias (__catan, catanl)
-#endif
-- 
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