/* Implementation of the SET_EXPONENT intrinsic
   Copyright (C) 2003-2015 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

#if defined (HAVE_GFC_REAL_8) && defined (HAVE_SCALBN) && defined (HAVE_FREXP)

extern GFC_REAL_8 set_exponent_r8 (GFC_REAL_8 s, GFC_INTEGER_4 i);
export_proto(set_exponent_r8);

GFC_REAL_8
set_exponent_r8 (GFC_REAL_8 s, GFC_INTEGER_4 i)
{
  int dummy_exp;
  return MATHFUNC(scalbn) (MATHFUNC(frexp) (s, &dummy_exp), i);
}

#endif