Update the in-tree GMP; fixes trac #832

[ghc-hetmet.git] / rts / gmp / mpz / mul_2exp.c

diff --git a/rts/gmp/mpz/mul_2exp.c b/rts/gmp/mpz/mul_2exp.c
deleted file mode 100644 (file)
index abea5fe..0000000
--- a/rts/gmp/mpz/mul_2exp.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* mpz_mul_2exp -- Multiply a bignum by 2**CNT
-
-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"
-
-void
-#if __STDC__
-mpz_mul_2exp (mpz_ptr w, mpz_srcptr u, unsigned long int cnt)
-#else
-mpz_mul_2exp (w, u, cnt)
-     mpz_ptr w;
-     mpz_srcptr u;
-     unsigned long int cnt;
-#endif
-{
-  mp_size_t usize = u->_mp_size;
-  mp_size_t abs_usize = ABS (usize);
-  mp_size_t wsize;
-  mp_size_t limb_cnt;
-  mp_ptr wp;
-  mp_limb_t wlimb;
-
-  if (usize == 0)
-    {
-      w->_mp_size = 0;
-      return;
-    }
-
-  limb_cnt = cnt / BITS_PER_MP_LIMB;
-  wsize = abs_usize + limb_cnt + 1;
-  if (w->_mp_alloc < wsize)
-    _mpz_realloc (w, wsize);
-
-  wp = w->_mp_d;
-  wsize = abs_usize + limb_cnt;
-
-  cnt %= BITS_PER_MP_LIMB;
-  if (cnt != 0)
-    {
-      wlimb = mpn_lshift (wp + limb_cnt, u->_mp_d, abs_usize, cnt);
-      if (wlimb != 0)
-       {
-         wp[wsize] = wlimb;
-         wsize++;
-       }
-    }
-  else
-    {
-      MPN_COPY_DECR (wp + limb_cnt, u->_mp_d, abs_usize);
-    }
-
-  /* Zero all whole limbs at low end.  Do it here and not before calling
-     mpn_lshift, not to lose for U == W.  */
-  MPN_ZERO (wp, limb_cnt);
-
-  w->_mp_size = usize >= 0 ? wsize : -wsize;
-}