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-rw-r--r--sysdeps/ieee754/dbl-64/e_cosh.c88
1 files changed, 0 insertions, 88 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_cosh.c b/sysdeps/ieee754/dbl-64/e_cosh.c
deleted file mode 100644
index 52a5d5007d..0000000000
--- a/sysdeps/ieee754/dbl-64/e_cosh.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* Optimized by Ulrich Drepper <drepper@gmail.com>, 2011 */
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-/* __ieee754_cosh(x)
- * Method :
- * mathematically cosh(x) if defined to be (exp(x)+exp(-x))/2
- *	1. Replace x by |x| (cosh(x) = cosh(-x)).
- *	2.
- *							[ exp(x) - 1 ]^2
- *	    0        <= x <= ln2/2  :  cosh(x) := 1 + -------------------
- *							   2*exp(x)
- *
- *						  exp(x) +  1/exp(x)
- *	    ln2/2    <= x <= 22     :  cosh(x) := -------------------
- *							  2
- *	    22       <= x <= lnovft :  cosh(x) := exp(x)/2
- *	    lnovft   <= x <= ln2ovft:  cosh(x) := exp(x/2)/2 * exp(x/2)
- *	    ln2ovft  <  x	    :  cosh(x) := huge*huge (overflow)
- *
- * Special cases:
- *	cosh(x) is |x| if x is +INF, -INF, or NaN.
- *	only cosh(0)=1 is exact for finite x.
- */
-
-#include <math.h>
-#include <math_private.h>
-
-static const double one = 1.0, half = 0.5, huge = 1.0e300;
-
-double
-__ieee754_cosh (double x)
-{
-  double t, w;
-  int32_t ix;
-  u_int32_t lx;
-
-  /* High word of |x|. */
-  GET_HIGH_WORD (ix, x);
-  ix &= 0x7fffffff;
-
-  /* |x| in [0,22] */
-  if (ix < 0x40360000)
-    {
-      /* |x| in [0,0.5*ln2], return 1+expm1(|x|)^2/(2*exp(|x|)) */
-      if (ix < 0x3fd62e43)
-	{
-	  if (ix < 0x3c800000)
-	    return one;                                   /* cosh(tiny) = 1 */
-	  t = __expm1 (fabs (x));
-	  w = one + t;
-	  return one + (t * t) / (w + w);
-	}
-
-      /* |x| in [0.5*ln2,22], return (exp(|x|)+1/exp(|x|)/2; */
-      t = __ieee754_exp (fabs (x));
-      return half * t + half / t;
-    }
-
-  /* |x| in [22, log(maxdouble)] return half*exp(|x|) */
-  if (ix < 0x40862e42)
-    return half * __ieee754_exp (fabs (x));
-
-  /* |x| in [log(maxdouble), overflowthresold] */
-  GET_LOW_WORD (lx, x);
-  if (ix < 0x408633ce || ((ix == 0x408633ce) && (lx <= (u_int32_t) 0x8fb9f87d)))
-    {
-      w = __ieee754_exp (half * fabs (x));
-      t = half * w;
-      return t * w;
-    }
-
-  /* x is INF or NaN */
-  if (ix >= 0x7ff00000)
-    return x * x;
-
-  /* |x| > overflowthresold, cosh(x) overflow */
-  return math_narrow_eval (huge * huge);
-}
-strong_alias (__ieee754_cosh, __cosh_finite)