1 files changed, 45 insertions, 0 deletions

diff --git a/src/regress/lib/libc/ieeefp/round/round.c b/src/regress/lib/libc/ieeefp/round/round.c
new file mode 100644
index 0000000000..807941ea56
--- /dev/null
+++ b/src/regress/lib/libc/ieeefp/round/round.c
@@ -0,0 +1,45 @@
+/*      $OpenBSD: round.c,v 1.3 2003/07/31 21:48:03 deraadt Exp $       */
+/*      $NetBSD: round.c,v 1.1 1995/04/26 00:27:28 jtc Exp $    */
+
+/*
+ * Written by J.T. Conklin, Apr 18, 1995
+ * Public domain.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include <ieeefp.h>
+#include <float.h>
+
+int
+main(int argc, char *argv[])
+{
+        /*
+         * This test would be better if it actually performed some
+         * calculations to verify the selected rounding mode.  But
+         * this is probably acceptable since the fp{get,set}round
+         * functions usually just get or set the processors fpu
+         * control word.
+         */
+
+        assert(fpgetround() == FP_RN);
+        assert(FLT_ROUNDS == 1);
+
+        assert(fpsetround(FP_RP) == FP_RN);
+        assert(fpgetround() == FP_RP);
+        assert(FLT_ROUNDS == 2);
+
+        assert(fpsetround(FP_RM) == FP_RP);
+        assert(fpgetround() == FP_RM);
+        assert(FLT_ROUNDS == 3);
+
+        assert(fpsetround(FP_RZ) == FP_RM);
+        assert(fpgetround() == FP_RZ);
+        assert(FLT_ROUNDS == 0);
+
+        assert(fpsetround(FP_RN) == FP_RZ);
+        assert(fpgetround() == FP_RN);
+        assert(FLT_ROUNDS == 1);
+
+        exit(0);
+}