1 files changed, 102 insertions, 0 deletions
diff --git a/mpc/tests/tui_div.c b/mpc/tests/tui_div.c
new file mode 100644
index 0000000000..c109189265
--- /dev/null
+++ b/mpc/tests/tui_div.c
@@ -0,0 +1,102 @@
+/* tui_div -- test file for mpc_ui_div.
+
+Copyright (C) 2008, 2011 INRIA
+
+This file is part of GNU MPC.
+
+GNU MPC 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.
+
+GNU MPC 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 this program. If not, see http://www.gnu.org/licenses/ .
+*/
+
+#include "mpc-tests.h"
+
+static void
+special (void)
+{
+  mpc_t a, b;
+
+  mpc_init2 (a, 10);
+  mpc_init2 (b, 10);
+
+  mpc_set_ui_ui (a, 2, 4, MPC_RNDNN);
+  mpc_ui_div (b, 10, a, MPC_RNDNN);
+  if (mpc_cmp_si_si (b, 1, -2) != 0)
+    {
+      printf ("10/(2,4) failed\n");
+      printf ("expected (1,-2)\n");
+      printf ("got      ");
+      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
+      printf ("\n");
+      exit (1);
+    }
+
+  /* 0/(-1-0*I) should give (-0, +0) */
+  mpfr_set_str (mpc_realref(a), "-1", 10, GMP_RNDN);
+  mpfr_set_str (mpc_imagref(a), "-0", 10, GMP_RNDN);
+  mpc_ui_div (b, 0, a, MPC_RNDNN);
+  if ((mpc_cmp_si_si (b, 0, 0) != 0) || (MPFR_SIGN (mpc_realref(b)) > 0)
+      || (MPFR_SIGN (mpc_imagref(b)) < 0))
+    {
+      printf ("0/(-1,-0) failed\n");
+      printf ("expected (-0,+0)\n");
+      printf ("got      ");
+      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
+      printf ("\n");
+      exit (1);
+    }
+
+  mpc_set_ui_ui (a, 1, 0, MPC_RNDNN);
+  mpc_ui_div (b, 1, a, MPC_RNDNN);
+  if (mpc_cmp_si_si (b, 1, 0) != 0)
+    {
+      printf ("1/(1,0) failed\n");
+      printf ("expected (1,0)\n");
+      printf ("got      ");
+      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
+      printf ("\n");
+      exit (1);
+    }
+
+  /* problem reported by Timo Hartmann with mpc-0.7, 21 Oct 2009 */
+  mpc_set_ui_ui (a, 4, 0, MPC_RNDNN);
+  mpc_ui_div (b, 1, a, MPC_RNDNN);
+  if (mpfr_cmp_ui_2exp (mpc_realref(b), 1, -2) != 0 ||
+      mpfr_cmp_ui (mpc_imagref(b), 0) != 0 || mpfr_signbit (mpc_imagref(b)) != 0)
+    {
+      printf ("1/(4,0) failed\n");
+      printf ("expected (1/4,0)\n");
+      printf ("got      ");
+      mpc_out_str (stdout, 10, 0, b, MPC_RNDNN);
+      printf ("\n");
+      exit (1);
+    }
+
+  mpc_clear (a);
+  mpc_clear (b);
+}
+
+int
+main (void)
+{
+  DECL_FUNC (CUC, f, mpc_ui_div);
+
+  test_start ();
+
+  special ();
+
+  tgeneric (f, 2, 1024, 7, 4096);
+
+  test_end ();
+
+  return 0;
+}