Update the in-tree GMP; fixes trac #832

[ghc-hetmet.git] / rts / gmp / mpz / tstbit.c

diff --git a/rts/gmp/mpz/tstbit.c b/rts/gmp/mpz/tstbit.c
deleted file mode 100644 (file)
index b0a8b0b..0000000
--- a/rts/gmp/mpz/tstbit.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/* mpz_tstbit -- test a specified bit.  Simulate 2's complement representation.
-
-Copyright (C) 1997 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"
-
-int
-#if __STDC__
-mpz_tstbit (mpz_srcptr d, unsigned long int bit_index)
-#else
-mpz_tstbit (d, bit_index)
-     mpz_srcptr d;
-     unsigned long int bit_index;
-#endif
-{
-  mp_size_t dsize = d->_mp_size;
-  mp_ptr dp = d->_mp_d;
-  mp_size_t limb_index;
-
-  limb_index = bit_index / BITS_PER_MP_LIMB;
-  if (dsize >= 0)
-    {
-      if (limb_index < dsize)
-       return (dp[limb_index] >> (bit_index % BITS_PER_MP_LIMB)) & 1;
-      else
-       /* Testing a bit outside of a positive number.  */
-       return 0;
-    }
-  else
-    {
-      mp_size_t zero_bound;
-
-      dsize = -dsize;
-
-      /* Locate the least significant non-zero limb.  */
-      for (zero_bound = 0; dp[zero_bound] == 0; zero_bound++)
-       ;
-
-      if (limb_index > zero_bound)
-       {
-         if (limb_index < dsize)
-           return (~dp[limb_index] >> (bit_index % BITS_PER_MP_LIMB)) & 1;
-         else
-           /* Testing a bit outside of a negative number.  */
-           return 1;
-       }
-      else if (limb_index == zero_bound)
-       return (-dp[limb_index] >> (bit_index % BITS_PER_MP_LIMB)) & 1;
-      else
-       return 0;
-    }
-}