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-rw-r--r--stdlib/rshift.c88
1 files changed, 0 insertions, 88 deletions
diff --git a/stdlib/rshift.c b/stdlib/rshift.c
deleted file mode 100644
index 9d0a9c4..0000000
--- a/stdlib/rshift.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* mpn_rshift -- Shift right a low-level natural-number integer.
-
-Copyright (C) 1991, 1993, 1994, 1996 Free Software Foundation, Inc.
-
-This file is part of the GNU MP Library.
-
-The GNU MP 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 MP 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 MP 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 <gmp.h>
-#include "gmp-impl.h"
-
-/* Shift U (pointed to by UP and USIZE limbs long) CNT bits to the right
- and store the USIZE least significant limbs of the result at WP.
- The bits shifted out to the right are returned.
-
- Argument constraints:
- 1. 0 < CNT < BITS_PER_MP_LIMB
- 2. If the result is to be written over the input, WP must be <= UP.
-*/
-
-mp_limb_t
-#if __STDC__
-mpn_rshift (register mp_ptr wp,
- register mp_srcptr up, mp_size_t usize,
- register unsigned int cnt)
-#else
-mpn_rshift (wp, up, usize, cnt)
- register mp_ptr wp;
- register mp_srcptr up;
- mp_size_t usize;
- register unsigned int cnt;
-#endif
-{
- register mp_limb_t high_limb, low_limb;
- register unsigned sh_1, sh_2;
- register mp_size_t i;
- mp_limb_t retval;
-
-#ifdef DEBUG
- if (usize == 0 || cnt == 0)
- abort ();
-#endif
-
- sh_1 = cnt;
-
-#if 0
- if (sh_1 == 0)
- {
- if (wp != up)
- {
- /* Copy from low end to high end, to allow specified input/output
- overlapping. */
- for (i = 0; i < usize; i++)
- wp[i] = up[i];
- }
- return usize;
- }
-#endif
-
- wp -= 1;
- sh_2 = BITS_PER_MP_LIMB - sh_1;
- high_limb = up[0];
- retval = high_limb << sh_2;
- low_limb = high_limb;
-
- for (i = 1; i < usize; i++)
- {
- high_limb = up[i];
- wp[i] = (low_limb >> sh_1) | (high_limb << sh_2);
- low_limb = high_limb;
- }
- wp[i] = low_limb >> sh_1;
-
- return retval;
-}