[tests] Renamed total_order.c to ttotal_order.c.

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/trunk@12494 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 121 insertions, 0 deletions

diff --git a/tests/ttotal_order.c b/tests/ttotal_order.c
new file mode 100644
index 000000000..0fa019c22
--- /dev/null
+++ b/tests/ttotal_order.c
@@ -0,0 +1,121 @@
+/* Test file for mpfr_total_order.
+
+Copyright 2018 Free Software Foundation, Inc.
+Contributed by the AriC and Caramba 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 "mpfr-test.h"
+
+int
+main (void)
+{
+  mpfr_t x, y;
+
+  tests_start_mpfr ();
+
+  mpfr_init (x);
+  mpfr_init (y);
+
+  /* If x < y, totalOrder(x, y) is true */
+  mpfr_set_ui (x, 1, MPFR_RNDN);
+  mpfr_set_ui (y, 2, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  /* If x > y, totalOrder(x, y) is false */
+  mpfr_set_ui (x, 2, MPFR_RNDN);
+  mpfr_set_ui (y, 1, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) == 0);
+
+  /* totalOrder(-0, +0) is true */
+  mpfr_set_ui (x, 0, MPFR_RNDN);
+  mpfr_neg (x, x, MPFR_RNDN);
+  mpfr_set_ui (y, 0, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  /* totalOrder(+0, -0) is false */
+  mpfr_set_ui (x, 0, MPFR_RNDN);
+  mpfr_set_ui (y, 0, MPFR_RNDN);
+  mpfr_neg (y, y, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) == 0);
+
+  /* Case x = y */
+  mpfr_set_si (x, -1, MPFR_RNDN);
+  mpfr_set_si (y, -1, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  mpfr_set_si (x, 1, MPFR_RNDN);
+  mpfr_set_si (y, 1, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  /* Case x = -NaN */
+  mpfr_set_nan (x);
+  /* warning: the sign of x is unspecified in mpfr_set_nan */
+  if (!mpfr_signbit (x))
+    mpfr_neg (x, x, MPFR_RNDN);
+  /* now x = -NaN */
+  mpfr_set_si (y, 1, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+  mpfr_set_inf (y, -1);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+  mpfr_set_inf (y, +1);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  /* Case y = +NaN */
+  mpfr_set_nan (y);
+  if (mpfr_signbit (y))
+    mpfr_neg (y, y, MPFR_RNDN);
+  /* now y = +NaN */
+  mpfr_set_si (x, 1, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+  mpfr_set_inf (x, -1);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+  mpfr_set_inf (x, +1);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  /* Both x and y are NaN */
+  mpfr_set_nan (x);
+  if (!mpfr_signbit (x))
+    mpfr_neg (x, x, MPFR_RNDN);
+  /* now x = -NaN */
+  mpfr_set_nan (y);
+  if (mpfr_signbit (y))
+    mpfr_neg (y, y, MPFR_RNDN);
+  /* now y = +NaN */
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+  mpfr_neg (y, y, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+
+  mpfr_set_nan (x);
+  if (mpfr_signbit (x))
+    mpfr_neg (x, x, MPFR_RNDN);
+  /* now x = +NaN */
+  mpfr_set_nan (y);
+  if (mpfr_signbit (y))
+    mpfr_neg (y, y, MPFR_RNDN);
+  /* now y = +NaN */
+  MPFR_ASSERTN(mpfr_total_order (x, y) != 0);
+  mpfr_neg (y, y, MPFR_RNDN);
+  MPFR_ASSERTN(mpfr_total_order (x, y) == 0);
+
+  mpfr_clear (x);
+  mpfr_clear (y);
+
+  tests_end_mpfr ();
+  return 0;
+}