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authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
treee021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/libm-ieee754/s_round.c
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_round.c')
-rw-r--r--sysdeps/libm-ieee754/s_round.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/sysdeps/libm-ieee754/s_round.c b/sysdeps/libm-ieee754/s_round.c
deleted file mode 100644
index fdb17f8de8..0000000000
--- a/sysdeps/libm-ieee754/s_round.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* Round double to integer away from zero.
-   Copyright (C) 1997 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 Library General Public License as
-   published by the Free Software Foundation; either version 2 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
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#include <math.h>
-
-#include "math_private.h"
-
-
-static const double huge = 1.0e300;
-
-
-double
-__round (double x)
-{
-  int32_t i0, j0;
-  u_int32_t i1;
-
-  EXTRACT_WORDS (i0, i1, x);
-  j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
-  if (j0 < 20)
-    {
-      if (j0 < 0)
-	{
-	  if (huge + x > 0.0)
-	    {
-	      i0 &= 0x80000000;
-	      if (j0 == -1)
-		i0 |= 0x3ff00000;
-	      i1 = 0;
-	    }
-	}
-      else
-	{
-	  u_int32_t i = 0x000fffff >> j0;
-	  if (((i0 & i) | i1) == 0)
-	    /* X is integral.  */
-	    return x;
-	  if (huge + x > 0.0)
-	    {
-	      /* Raise inexact if x != 0.  */
-	      i0 += 0x00080000 >> j0;
-	      i0 &= ~i;
-	      i1 = 0;
-	    }
-	}
-    }
-  else if (j0 > 51)
-    {
-      if (j0 == 0x400)
-	/* Inf or NaN.  */
-	return x + x;
-      else
-	return x;
-    }
-  else
-    {
-      u_int32_t i = 0xffffffff >> (j0 - 20);
-      if ((i1 & i) == 0)
-	/* X is integral.  */
-	return x;
-
-      if (huge + x > 0.0)
-	{
-	  /* Raise inexact if x != 0.  */
-	  u_int32_t j = i1 + (1 << (51 - j0));
-	  if (j < i1)
-	    i0 += 1;
-	  i1 = j;
-	}
-      i1 &= ~i;
-    }
-
-  INSERT_WORDS (x, i0, i1);
-  return x;
-}
-weak_alias (__round, round)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__round, __roundl)
-weak_alias (__round, roundl)
-#endif