| /* Implementation of the SET_EXPONENT intrinsic |
| Copyright 2003, 2007, 2009 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" |
| |
| |
| #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 scalbn (frexp (s, &dummy_exp), i); |
| } |
| |
| #endif |