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-rw-r--r--sysdeps/ieee754/dbl-64/e_atanh.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_atanh.c b/sysdeps/ieee754/dbl-64/e_atanh.c
deleted file mode 100644
index a9d19a0472..0000000000
--- a/sysdeps/ieee754/dbl-64/e_atanh.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.
-
-   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/>.  */
-
-
-/* __ieee754_atanh(x)
-   Method :
-      1.Reduced x to positive by atanh(-x) = -atanh(x)
-      2.For x>=0.5
-		    1              2x                          x
-	atanh(x) = --- * log(1 + -------) = 0.5 * log1p(2 * --------)
-		    2             1 - x                      1 - x
-
-	For x<0.5
-	atanh(x) = 0.5*log1p(2x+2x*x/(1-x))
-
-   Special cases:
-	atanh(x) is NaN if |x| > 1 with signal;
-	atanh(NaN) is that NaN with no signal;
-	atanh(+-1) is +-INF with signal.
-
- */
-
-#include <float.h>
-#include <inttypes.h>
-#include <math.h>
-#include <math_private.h>
-
-static const double huge = 1e300;
-
-double
-__ieee754_atanh (double x)
-{
-  double xa = fabs (x);
-  double t;
-  if (isless (xa, 0.5))
-    {
-      if (__glibc_unlikely (xa < 0x1.0p-28))
-	{
-	  math_force_eval (huge + x);
-	  math_check_force_underflow (x);
-	  return x;
-	}
-
-      t = xa + xa;
-      t = 0.5 * __log1p (t + t * xa / (1.0 - xa));
-    }
-  else if (__glibc_likely (isless (xa, 1.0)))
-    t = 0.5 * __log1p ((xa + xa) / (1.0 - xa));
-  else
-    {
-      if (isgreater (xa, 1.0))
-	return (x - x) / (x - x);
-
-      return x / 0.0;
-    }
-
-  return __copysign (t, x);
-}
-strong_alias (__ieee754_atanh, __atanh_finite)