Imported gcc-4.4.3

[msp430-gcc.git] / libdecnumber / decExcept.c

diff --git a/libdecnumber/decExcept.c b/libdecnumber/decExcept.c
new file mode 100644 (file)
index 0000000..99c20db
--- /dev/null
+++ b/libdecnumber/decExcept.c
@@ -0,0 +1,54 @@
+/* Temporary library support for decimal floating point.
+   Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   GCC 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, or (at your option)
+   any later version.
+
+   GCC 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 <fenv.h>
+#include "dconfig.h"
+#include "decContext.h"
+#include "decExcept.h"
+
+/* Internal, non-documented functions for testing libgcc functions.
+   This support is not sufficient for real use.  */
+
+static int __dfp_except_flags = 0;
+
+/* Clear the dummy exception flags.  */
+void
+__dfp_clear_except (void)
+{
+  __dfp_except_flags = 0;
+}
+
+/* Return the dummy exception flags corresponding to the mask.  */
+int
+__dfp_test_except (int mask)
+{
+  return __dfp_except_flags & mask;
+}
+
+/* Set dummy exception flags.  */
+void
+__dfp_raise_except (int flags)
+{
+  __dfp_except_flags |= flags;
+}