45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/* Implementation of the SET_EXPONENT intrinsic
|
|
Copyright (C) 2003-2013 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_SCALBNF) && defined (HAVE_FREXPF)
|
|
|
|
extern GFC_REAL_4 set_exponent_r4 (GFC_REAL_4 s, GFC_INTEGER_4 i);
|
|
export_proto(set_exponent_r4);
|
|
|
|
GFC_REAL_4
|
|
set_exponent_r4 (GFC_REAL_4 s, GFC_INTEGER_4 i)
|
|
{
|
|
int dummy_exp;
|
|
return MATHFUNC(scalbn) (MATHFUNC(frexp) (s, &dummy_exp), i);
|
|
}
|
|
|
|
#endif
|