1 files changed, 51 insertions, 0 deletions
diff --git a/tests/tswap.c b/tests/tswap.c
new file mode 100644
index 0000000..edb7cb1
--- /dev/null
+++ b/tests/tswap.c
@@ -0,0 +1,51 @@
+/* Test file for mpfr_swap.
+
+Copyright 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+Contributed by the AriC and Caramel projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR 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 3 of the License, or (at your
+option) any later version.
+
+The GNU MPFR 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 MPFR Library; see the file COPYING.LESSER.  If not, see
+http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mpfr-test.h"
+
+int
+main (void)
+{
+  mpfr_t u, v;
+
+  tests_start_mpfr ();
+
+  mpfr_init2 (u, 24);
+  mpfr_init2 (v, 53);
+  mpfr_set_ui (u, 16777215, MPFR_RNDN); /* 2^24 - 1 */
+  mpfr_set_str1 (v, "9007199254740991.0"); /* 2^53 - 1 */
+  mpfr_swap (u, v);
+  mpfr_swap (u, v);
+  if (mpfr_cmp_ui (u, 16777215) || mpfr_cmp_str1 (v, "9007199254740991.0"))
+    {
+      printf ("Error in mpfr_swap\n");
+      exit (1);
+    }
+  mpfr_clear (u);
+  mpfr_clear (v);
+
+  tests_end_mpfr ();
+  return 0;
+}