1 files changed, 68 insertions, 0 deletions
diff --git a/mpc/tests/tadd_si.c b/mpc/tests/tadd_si.c
new file mode 100644
index 0000000000..da12a7a9ec
--- /dev/null
+++ b/mpc/tests/tadd_si.c
@@ -0,0 +1,68 @@
+/* tadd_si -- test file for mpc_add_si.
+
+Copyright (C) 2011, 2012 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 <stdlib.h>
+#include "mpc-tests.h"
+
+static void
+check_ternary_value (void)
+{
+   mpfr_prec_t prec;
+   mpc_t z;
+   const long int s = -1;
+
+   mpc_init2 (z, 2);
+
+   for (prec=2; prec <= 1024; prec++) {
+      mpc_set_prec (z, prec);
+      mpc_set_ui (z, 3ul, MPC_RNDNN);
+      if (mpc_add_si (z, z, s, MPC_RNDDU)) {
+         printf ("Error in mpc_add_si: 3+(-1) should be exact\n");
+         exit (1);
+      }
+      else if (mpc_cmp_si (z, 2l) != 0) {
+         printf ("Error in mpc_add_si: 3+(-1) should be 2\n");
+         exit (1);
+      }
+
+      mpc_mul_2ui (z, z, (unsigned long int) prec, MPC_RNDNN);
+      if (mpc_add_si (z, z, s, MPC_RNDNN) == 0) {
+         printf ("Error in mpc_add_si: 2^(prec+1)-1 cannot be exact\n");
+         exit (1);
+      }
+    }
+
+    mpc_clear (z);
+}
+
+int
+main (void)
+{
+   DECL_FUNC (CCU, f, mpc_add_ui);
+
+   test_start ();
+
+   check_ternary_value ();
+   tgeneric (f, 2, 1024, 11, -2);
+
+   test_end ();
+
+   return 0;
+}