2 files changed, 91 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/tests/test-rint.c b/gnulib/tests/test-rint.c
new file mode 100644
index 0000000..0a8a010
--- /dev/null
+++ b/gnulib/tests/test-rint.c
@@ -0,0 +1,91 @@
+/* Test of rint() function.
+   Copyright (C) 2010-2011 Free Software Foundation, Inc.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2010.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (rint, double, (double));
+
+#include <float.h>
+#include <stdio.h>
+
+#include "isnand-nolibm.h"
+#include "minus-zero.h"
+#include "infinity.h"
+#include "nan.h"
+#include "macros.h"
+
+int
+main ()
+{
+  /* Consider the current rounding mode, cf.
+     <http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/float.h.html>  */
+  if (FLT_ROUNDS == 1)
+    {
+      /* The current rounding mode is round-to-nearest
+         (the default in IEEE 754).  */
+
+      /* Zero.  */
+      ASSERT (rint (0.0) == 0.0);
+      ASSERT (rint (minus_zerod) == 0.0);
+      /* Positive numbers.  */
+      ASSERT (rint (0.3) == 0.0);
+      ASSERT (rint (0.5) == 0.0); /* unlike round() */
+      ASSERT (rint (0.7) == 1.0);
+      ASSERT (rint (1.0) == 1.0);
+      ASSERT (rint (1.5) == 2.0);
+      ASSERT (rint (1.999) == 2.0);
+      ASSERT (rint (2.0) == 2.0);
+      ASSERT (rint (2.1) == 2.0);
+      ASSERT (rint (2.5) == 2.0); /* unlike round() */
+      ASSERT (rint (2.7) == 3.0);
+      ASSERT (rint (65535.999) == 65536.0);
+      ASSERT (rint (65536.0) == 65536.0);
+      ASSERT (rint (65536.001) == 65536.0);
+      ASSERT (rint (2.341e31) == 2.341e31);
+      /* Negative numbers.  */
+      ASSERT (rint (-0.3) == 0.0);
+      ASSERT (rint (-0.5) == 0.0); /* unlike round() */
+      ASSERT (rint (-0.7) == -1.0);
+      ASSERT (rint (-1.0) == -1.0);
+      ASSERT (rint (-1.5) == -2.0);
+      ASSERT (rint (-1.999) == -2.0);
+      ASSERT (rint (-2.0) == -2.0);
+      ASSERT (rint (-2.1) == -2.0);
+      ASSERT (rint (-2.5) == -2.0); /* unlike round() */
+      ASSERT (rint (-2.7) == -3.0);
+      ASSERT (rint (-65535.999) == -65536.0);
+      ASSERT (rint (-65536.0) == -65536.0);
+      ASSERT (rint (-65536.001) == -65536.0);
+      ASSERT (rint (-2.341e31) == -2.341e31);
+      /* Infinite numbers.  */
+      ASSERT (rint (Infinityd ()) == Infinityd ());
+      ASSERT (rint (- Infinityd ()) == - Infinityd ());
+      /* NaNs.  */
+      ASSERT (isnand (rint (NaNd ())));
+
+      return 0;
+    }
+  else
+    {
+      fputs ("Skipping test: non-standard rounding mode\n", stderr);
+      return 77;
+    }
+}