[gcc] GCC 4.5.0=>4.5.1

gcc/gmp/mpz/set_f.c

-/* mpz_set_f (dest_integer, src_float) -- Assign DEST_INTEGER from SRC_FLOAT.
-
-Copyright 1996, 2001 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 3 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.  If not, see http://www.gnu.org/licenses/.  */
-
-#include "gmp.h"
-#include "gmp-impl.h"
-
-
-void
-mpz_set_f (mpz_ptr w, mpf_srcptr u)
-{
-  mp_ptr    wp, up;
-  mp_size_t size;
-  mp_exp_t  exp;
-
-  /* abs(u)<1 truncates to zero */
-  exp = EXP (u);
-  if (exp <= 0)
-    {
-      SIZ(w) = 0;
-      return;
-    }
-
-  MPZ_REALLOC (w, exp);
-  wp = PTR(w);
-  up = PTR(u);
-
-  size = SIZ (u);
-  SIZ(w) = (size >= 0 ? exp : -exp);
-  size = ABS (size);
-
-  if (exp > size)
-    {
-      /* pad with low zeros to get a total "exp" many limbs */
-      mp_size_t  zeros = exp - size;
-      MPN_ZERO (wp, zeros);
-      wp += zeros;
-    }
-  else
-    {
-      /* exp<=size, trucate to the high "exp" many limbs */
-      up += (size - exp);
-      size = exp;
-    }
-
-  MPN_COPY (wp, up, size);
-}