grab from glibc

1 files changed, 43 insertions, 0 deletions

diff --git a/test/math/test-fpucw.c b/test/math/test-fpucw.c
new file mode 100644
index 000000000..6d638c66c
--- /dev/null
+++ b/test/math/test-fpucw.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 2000.
+
+   The GNU C Library 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.
+
+   The GNU C Library 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 the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <fpu_control.h>
+#include <stdio.h>
+
+int
+main (void)
+{
+#ifdef _FPU_GETCW
+/* Some architectures don't have _FPU_GETCW (e.g. Linux/Alpha).  */
+  fpu_control_t cw;
+
+  _FPU_GETCW (cw);
+
+  cw &= ~_FPU_RESERVED;
+
+  if (cw != (_FPU_DEFAULT & ~_FPU_RESERVED))
+    printf ("control word is 0x%lx but should be 0x%lx.\n",
+	    (long int) cw, (long int) (_FPU_DEFAULT & ~_FPU_RESERVED));
+
+  return cw != (_FPU_DEFAULT & ~_FPU_RESERVED);
+
+#else
+  return 0;
+#endif
+}