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authordnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4>2004-05-13 06:41:07 +0000
committerdnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4>2004-05-13 06:41:07 +0000
commit4ee9c6840ad3fc92a9034343278a1e476ad6872a (patch)
treea2568888a519c077427b133de9ece5879a8484a5 /libgfortran/generated/nearest_r8.c
parentebb338380ab170c91e64d38038e6b5ce930d69a1 (diff)
downloadgcc-4ee9c6840ad3fc92a9034343278a1e476ad6872a.tar.gz
Merge tree-ssa-20020619-branch into mainline.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@81764 138bc75d-0d04-0410-961f-82ee72b054a4
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+/* Implementation of the NEAREST intrinsic
+ Copyright 2003 Free Software Foundation, Inc.
+ Contributed by Richard Henderson <rth@redhat.com>.
+
+This file is part of the GNU Fortran 95 runtime library (libgfor).
+
+Libgfor is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+Ligbfor 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB. If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+#include <math.h>
+#include <float.h>
+#include "libgfortran.h"
+
+
+GFC_REAL_8
+prefix(nearest_r8) (GFC_REAL_8 s, GFC_REAL_8 dir)
+{
+ dir = copysign (__builtin_inf (), dir);
+ if (FLT_EVAL_METHOD != 0)
+ {
+ /* ??? Work around glibc bug on x86. */
+ volatile GFC_REAL_8 r = nextafter (s, dir);
+ return r;
+ }
+ else
+ return nextafter (s, dir);
+}