1 files changed, 0 insertions, 91 deletions
diff --git a/StdLib/LibC/Math/e_cosh.c b/StdLib/LibC/Math/e_cosh.c
deleted file mode 100644
index 48ce6817d2..0000000000
--- a/StdLib/LibC/Math/e_cosh.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/* @(#)e_cosh.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.
- * ====================================================
- */
-#include  <LibConfig.h>
-#include  <sys/EfiCdefs.h>
-#if defined(LIBM_SCCS) && !defined(lint)
-__RCSID("$NetBSD: e_cosh.c,v 1.11 2002/05/26 22:01:49 wiz Exp $");
-#endif
-
-#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler specifics. */
-  // C4756: overflow in constant arithmetic
-  #pragma warning ( disable : 4756 )
-#endif
-
-/* __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 is INF or NaN */
-  if(ix>=0x7ff00000) return x*x;
-
-    /* |x| in [0,0.5*ln2], return 1+expm1(|x|)^2/(2*exp(|x|)) */
-  if(ix<0x3fd62e43) {
-      t = expm1(fabs(x));
-      w = one+t;
-      if (ix<0x3c800000) return w;  /* cosh(tiny) = 1 */
-      return one+(t*t)/(w+w);
-  }
-
-    /* |x| in [0.5*ln2,22], return (exp(|x|)+1/exp(|x|)/2; */
-  if (ix < 0x40360000) {
-    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| > overflowthresold, cosh(x) overflow */
-  return huge*huge;
-}