--- /dev/null
+/* Test the Mersenne Twister random number generator.
+
+Copyright 2002 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 "gmp.h"
+#include "gmp-impl.h"
+#include "tests.h"
+
+#ifndef TRUE
+#define TRUE (1)
+#endif
+#ifndef FALSE
+#define FALSE (0)
+#endif
+
+/* Test that the sequence without seeding equals the sequence with the
+ default seed. */
+int
+chk_default_seed (void)
+{
+ gmp_randstate_t r1, r2;
+ mpz_t a, b;
+ int i;
+ int ok = TRUE;
+
+ mpz_init2 (a, 19936L);
+ mpz_init2 (b, 19936L);
+
+ gmp_randinit_mt (r1);
+ gmp_randinit_mt (r2);
+ gmp_randseed_ui (r2, 5489L); /* Must match DEFAULT_SEED in randmt.c */
+ for (i = 0; i < 3; i++)
+ {
+ /* Extract one whole buffer per iteration. */
+ mpz_urandomb (a, r1, 19936L);
+ mpz_urandomb (b, r2, 19936L);
+ if (mpz_cmp (a, b) != 0)
+ {
+ ok = FALSE;
+ printf ("Default seed fails in iteration %d\n", i);
+ break;
+ }
+ }
+ gmp_randclear (r1);
+ gmp_randclear (r2);
+
+ mpz_clear (a);
+ mpz_clear (b);
+ return ok;
+}
+
+int
+main (int argc, char *argv[])
+{
+ int ok;
+
+ tests_start ();
+
+ ok = chk_default_seed ();
+
+ tests_end ();
+
+ if (ok)
+ return 0; /* pass */
+ else
+ return 1; /* fail */
+}