Subversion Repositories openrisc

/* Implementation of the NEAREST intrinsic

   Copyright 2003, 2007, 2009, 2010 Free Software Foundation, Inc.

   Contributed by Richard Henderson <rth@redhat.com>.

This file is part of the GNU Fortran 95 runtime library (libgfortran).

Libgfortran is free software; you can redistribute it and/or

modify it under the terms of the GNU General Public

License as published by the Free Software Foundation; either

version 3 of the License, or (at your option) any later version.

Libgfortran 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 General Public License for more details.

Under Section 7 of GPL version 3, you are granted additional

permissions described in the GCC Runtime Library Exception, version

3.1, as published by the Free Software Foundation.

You should have received a copy of the GNU General Public License and

a copy of the GCC Runtime Library Exception along with this program;

see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

<http://www.gnu.org/licenses/>.  */

#include "libgfortran.h"

#define MATHFUNC(funcname) funcname ## f

#if defined (HAVE_GFC_REAL_4) && defined (HAVE_COPYSIGNF) && defined (HAVE_NEXTAFTERF)

extern GFC_REAL_4 nearest_r4 (GFC_REAL_4 s, GFC_REAL_4 dir);

export_proto(nearest_r4);

GFC_REAL_4

nearest_r4 (GFC_REAL_4 s, GFC_REAL_4 dir)

{

  dir = MATHFUNC(copysign) (MATHFUNC(__builtin_inf) (), dir);

  if (FLT_EVAL_METHOD != 0)

    {

      /* ??? Work around glibc bug on x86.  */

      volatile GFC_REAL_4 r = MATHFUNC(nextafter) (s, dir);

      return r;

    }

  else

    return MATHFUNC(nextafter) (s, dir);

}

#endif