1 files changed, 0 insertions, 98 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_tanh.c b/sysdeps/ieee754/dbl-64/s_tanh.c
deleted file mode 100644
index 344a2f0330..0000000000
--- a/sysdeps/ieee754/dbl-64/s_tanh.c
+++ /dev/null
@@ -1,98 +0,0 @@
-/* @(#)s_tanh.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: s_tanh.c,v 1.7 1995/05/10 20:48:22 jtc Exp $";
-#endif
-
-/* Tanh(x)
- * Return the Hyperbolic Tangent of x
- *
- * Method :
- *				       x    -x
- *				      e  - e
- *	0. tanh(x) is defined to be -----------
- *				       x    -x
- *				      e  + e
- *	1. reduce x to non-negative by tanh(-x) = -tanh(x).
- *	2.  0      <= x <= 2**-55 : tanh(x) := x*(one+x)
- *					        -t
- *	    2**-55 <  x <=  1     : tanh(x) := -----; t = expm1(-2x)
- *					       t + 2
- *						     2
- *	    1      <= x <=  22.0  : tanh(x) := 1-  ----- ; t=expm1(2x)
- *						   t + 2
- *	    22.0   <  x <= INF    : tanh(x) := 1.
- *
- * Special cases:
- *	tanh(NaN) is NaN;
- *	only tanh(0)=0 is exact for finite argument.
- */
-
-#include <float.h>
-#include <math.h>
-#include <math_private.h>
-
-static const double one = 1.0, two = 2.0, tiny = 1.0e-300;
-
-double
-__tanh (double x)
-{
-  double t, z;
-  int32_t jx, ix, lx;
-
-  /* High word of |x|. */
-  EXTRACT_WORDS (jx, lx, x);
-  ix = jx & 0x7fffffff;
-
-  /* x is INF or NaN */
-  if (ix >= 0x7ff00000)
-    {
-      if (jx >= 0)
-	return one / x + one;               /* tanh(+-inf)=+-1 */
-      else
-	return one / x - one;               /* tanh(NaN) = NaN */
-    }
-
-  /* |x| < 22 */
-  if (ix < 0x40360000)                  /* |x|<22 */
-    {
-      if ((ix | lx) == 0)
-	return x;                       /* x == +-0 */
-      if (ix < 0x3c800000)              /* |x|<2**-55 */
-	{
-	  math_check_force_underflow (x);
-	  return x * (one + x);           /* tanh(small) = small */
-	}
-      if (ix >= 0x3ff00000)             /* |x|>=1  */
-	{
-	  t = __expm1 (two * fabs (x));
-	  z = one - two / (t + two);
-	}
-      else
-	{
-	  t = __expm1 (-two * fabs (x));
-	  z = -t / (t + two);
-	}
-      /* |x| > 22, return +-1 */
-    }
-  else
-    {
-      z = one - tiny;                   /* raised inexact flag */
-    }
-  return (jx >= 0) ? z : -z;
-}
-weak_alias (__tanh, tanh)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__tanh, __tanhl)
-weak_alias (__tanh, tanhl)
-#endif