[gcc] GCC 4.5.0=>4.5.1

gcc/gmp/mpf/reldiff.c

-/* mpf_reldiff -- Generate the relative difference of two floats.
-
-Copyright 1996, 2001, 2004, 2005 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"
-
-
-/* The precision we use for d = x-y is based on what mpf_div will want from
-   the dividend.  It calls mpn_tdiv_qr to produce a quotient of rprec+1
-   limbs.  So rprec+1 == dsize - xsize + 1, hence dprec = rprec+xsize.  */
-
-void
-mpf_reldiff (mpf_t rdiff, mpf_srcptr x, mpf_srcptr y)
-{
-  if (UNLIKELY (SIZ(x) == 0))
-    {
-      mpf_set_ui (rdiff, (unsigned long int) (mpf_sgn (y) != 0));
-    }
-  else
-    {
-      mp_size_t dprec;
-      mpf_t d;
-      TMP_DECL;
-
-      TMP_MARK;
-      dprec = PREC(rdiff) + ABSIZ(x);
-      ASSERT (PREC(rdiff)+1 == dprec - ABSIZ(x) + 1);
-
-      PREC(d) = dprec;
-      PTR(d) = TMP_ALLOC_LIMBS (dprec + 1);
-
-      mpf_sub (d, x, y);
-      SIZ(d) = ABSIZ(d);
-      mpf_div (rdiff, d, x);
-
-      TMP_FREE;
-    }
-}