[gcc] GCC 4.5.0=>4.5.1

gcc/mpfr/sgn.c

-/* mpfr_sgn -- Sign of a floating point number.
-
-Copyright 2003, 2004, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
-Contributed by the Arenaire and Cacao projects, INRIA.
-
-This file is part of the GNU MPFR Library.
-
-The GNU MPFR 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 MPFR 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 MPFR Library; see the file COPYING.LIB.  If not, write to
-the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-MA 02110-1301, USA. */
-
-#include "mpfr-impl.h"
-
-int
-(mpfr_sgn) (mpfr_srcptr a)
-{
-  if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (a)))
-    {
-      if (MPFR_LIKELY (MPFR_IS_ZERO (a)))
-        return 0;
-      if (MPFR_UNLIKELY (MPFR_IS_NAN (a)))
-        {
-          MPFR_SET_ERANGE ();
-          return 0;
-        }
-      /* Remains infinity, handled by the return below. */
-    }
-  return MPFR_INT_SIGN (a);
-}