+++ /dev/null
-/* mpn_scan0 -- Scan from a given bit position for the next clear bit.
-
-Copyright (C) 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"
-#include "longlong.h"
-
-/* Design issues:
- 1. What if starting_bit is not within U? Caller's problem?
- 2. Bit index should be 'unsigned'?
-
- Argument constraints:
- 1. U must sooner ot later have a limb with a clear bit.
- */
-
-unsigned long int
-#if __STDC__
-mpn_scan0 (register mp_srcptr up,
- register unsigned long int starting_bit)
-#else
-mpn_scan0 (up, starting_bit)
- register mp_srcptr up;
- register unsigned long int starting_bit;
-#endif
-{
- mp_size_t starting_word;
- mp_limb_t alimb;
- int cnt;
- mp_srcptr p;
-
- /* Start at the word implied by STARTING_BIT. */
- starting_word = starting_bit / BITS_PER_MP_LIMB;
- p = up + starting_word;
- alimb = ~*p++;
-
- /* Mask off any bits before STARTING_BIT in the first limb. */
- alimb &= - (mp_limb_t) 1 << (starting_bit % BITS_PER_MP_LIMB);
-
- while (alimb == 0)
- alimb = ~*p++;
-
- count_leading_zeros (cnt, alimb & -alimb);
- return (p - up) * BITS_PER_MP_LIMB - 1 - cnt;
-}