Imported gcc-4.4.3

[msp430-gcc.git] / gmp / tests / mpz / dive_ui.c

diff --git a/gmp/tests/mpz/dive_ui.c b/gmp/tests/mpz/dive_ui.c
new file mode 100644 (file)
index 0000000..e240229
--- /dev/null
+++ b/gmp/tests/mpz/dive_ui.c
@@ -0,0 +1,85 @@
+/* Test mpz_divexact_ui.
+
+Copyright 1996, 2001 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP 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 MP 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 MP Library.  If not, see http://www.gnu.org/licenses/.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "gmp.h"
+#include "gmp-impl.h"
+#include "tests.h"
+
+
+void
+check_random (int argc, char *argv[])
+{
+  gmp_randstate_ptr rands = RANDS;
+  int    reps = 500000;
+  mpz_t  a, q, got;
+  int    i, qneg;
+  unsigned long  d;
+
+  if (argc == 2)
+    reps = atoi (argv[1]);
+
+  mpz_init (a);
+  mpz_init (q);
+  mpz_init (got);
+
+  for (i = 0; i < reps; i++)
+    {
+      d = (unsigned long) urandom();
+      mpz_erandomb (q, rands, 512);
+      mpz_mul_ui (a, q, d);
+
+      for (qneg = 0; qneg <= 1; qneg++)
+        {
+          mpz_divexact_ui (got, a, d);
+          MPZ_CHECK_FORMAT (got);
+          if (mpz_cmp (got, q) != 0)
+            {
+              printf    ("mpz_divexact_ui wrong\n");
+              mpz_trace ("    a", a);
+              printf    ("    d=%lu\n", d);
+              mpz_trace ("    q", q);
+              mpz_trace ("  got", got);
+              abort ();
+            }
+
+          mpz_neg (q, q);
+          mpz_neg (a, a);
+        }
+
+    }
+
+  mpz_clear (a);
+  mpz_clear (q);
+  mpz_clear (got);
+}
+
+
+int
+main (int argc, char **argv)
+{
+  tests_start ();
+
+  check_random (argc, argv);
+
+  tests_end ();
+  exit (0);
+}