| /* Implementation of the SET_EXPONENT intrinsic |
| Copyright 2003, 2007 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 2 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| 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. |
| |
| You should have received a copy of the GNU General Public |
| License along with libgfortran; see the file COPYING. If not, |
| write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| #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 |