1 files changed, 65 insertions, 0 deletions
diff --git a/mpc/tests/tcos.c b/mpc/tests/tcos.c
new file mode 100644
index 0000000000..66a85bacc2
--- /dev/null
+++ b/mpc/tests/tcos.c
@@ -0,0 +1,65 @@
+/* tcos -- test file for mpc_cos.
+
+Copyright (C) 2008, 2009, 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
+bug20090105 (void)
+{
+  /* this bug appeared on 32-bits machines */
+  mpc_t op, expected, got;
+  mpc_init2 (op, 324);
+  mpc_init2 (expected, 324);
+  mpc_init2 (got, 324);
+
+  mpfr_set_str (mpc_realref(op), "-3.f1813b1487372434fea4414a520f65a343a16d0ec1ffb"
+                "b2b880154db8d63377ce788fc4215c450300@1", 16, GMP_RNDN);
+  mpfr_set_str (mpc_imagref(op), "-2.b7a0c80bcacf1ccbbac614bf53a58b672b1b503161bee"
+                "59a82e46a23570b652f7ba5f01ef766d1c50", 16,GMP_RNDN);
+  mpfr_set_str (mpc_realref(expected), "7.57c5b08a2b11b660d906a354289b0724b9c4b237"
+                "95abe33424e8d9858e534bd5d776ddd18e34b0240", 16, GMP_RNDN);
+  mpfr_set_str (mpc_imagref(expected), "-1.f41a389646d068e0263561cb3c5d1df763945ad"
+                "ed9339f2a98387a3c4f97dbfd8a08b7d0af2f11b46", 16,GMP_RNDN);
+
+  mpc_cos (got, op, MPC_RNDNN);
+  if (mpc_cmp (got, expected) != 0)
+    TEST_FAILED ("mpc_cos", op, got, expected, MPC_RNDNN);
+
+  mpc_clear (got);
+  mpc_clear(expected);
+  mpc_clear (op);
+}
+
+int
+main (void)
+{
+  DECL_FUNC (CC, f, mpc_cos);
+
+  test_start ();
+
+  data_check (f, "cos.dat");
+  tgeneric (f, 2, 512, 7, 7);
+
+  bug20090105 ();
+
+  test_end ();
+
+  return 0;
+}