/* Implementation of the SPACING intrinsic
- Copyright 2006 Free Software Foundation, Inc.
+ Copyright 2006, 2007, 2009 Free Software Foundation, Inc.
Contributed by Steven G. Kargl <kargl@gcc.gnu.org>
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.)
+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.
-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. */
+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 "config.h"
-#include <math.h>
#include "libgfortran.h"
-#if defined (HAVE_GFC_REAL_16) && defined (HAVE_FREXPL)
+
+#if defined(GFC_REAL_16_IS_FLOAT128)
+#define MATHFUNC(funcname) funcname ## q
+#else
+#define MATHFUNC(funcname) funcname ## l
+#endif
+
+#if defined (HAVE_GFC_REAL_16) && (defined(GFC_WITH_QUAD_LIB) || defined(HAVE_FREXPL))
extern GFC_REAL_16 spacing_r16 (GFC_REAL_16 s, int p, int emin, GFC_REAL_16 tiny);
export_proto(spacing_r16);
int e;
if (s == 0.)
return tiny;
- frexpl (s, &e);
+ MATHFUNC(frexp) (s, &e);
e = e - p;
e = e > emin ? e : emin;
-#if defined (HAVE_LDEXPL)
- return ldexpl (1., e);
+#if (defined(GFC_WITH_QUAD_LIB) || defined(HAVE_LDEXPL))
+ return MATHFUNC(ldexp) (1., e);
#else
- return scalbnl (1., e);
+ return MATHFUNC(scalbn) (1., e);
#endif
}