about summary refs log tree commit diff
path: root/sysdeps/ieee754/dbl-64/wordsize-64/s_round.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/ieee754/dbl-64/wordsize-64/s_round.c')
-rw-r--r--sysdeps/ieee754/dbl-64/wordsize-64/s_round.c66
1 files changed, 0 insertions, 66 deletions
diff --git a/sysdeps/ieee754/dbl-64/wordsize-64/s_round.c b/sysdeps/ieee754/dbl-64/wordsize-64/s_round.c
deleted file mode 100644
index 1c3fc7f50e..0000000000
--- a/sysdeps/ieee754/dbl-64/wordsize-64/s_round.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Round double to integer away from zero.
-   Copyright (C) 1997-2019 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 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
-   <https://www.gnu.org/licenses/>.  */
-
-#define NO_MATH_REDIRECT
-#include <math.h>
-
-#include <math_private.h>
-#include <libm-alias-double.h>
-#include <stdint.h>
-
-
-double
-__round (double x)
-{
-  int64_t i0, j0;
-
-  EXTRACT_WORDS64 (i0, x);
-  j0 = ((i0 >> 52) & 0x7ff) - 0x3ff;
-  if (__glibc_likely (j0 < 52))
-    {
-      if (j0 < 0)
-	{
-	  i0 &= UINT64_C(0x8000000000000000);
-	  if (j0 == -1)
-	    i0 |= UINT64_C(0x3ff0000000000000);
-	}
-      else
-	{
-	  uint64_t i = UINT64_C(0x000fffffffffffff) >> j0;
-	  if ((i0 & i) == 0)
-	    /* X is integral.  */
-	    return x;
-
-	  i0 += UINT64_C(0x0008000000000000) >> j0;
-	  i0 &= ~i;
-	}
-    }
-  else
-    {
-      if (j0 == 0x400)
-	/* Inf or NaN.  */
-	return x + x;
-      else
-	return x;
-    }
-
-  INSERT_WORDS64 (x, i0);
-  return x;
-}
-libm_alias_double (__round, round)