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1 files changed, 82 insertions, 0 deletions

diff --git a/gmp-6.3.0/tests/rand/t-mt.c b/gmp-6.3.0/tests/rand/t-mt.c
new file mode 100644
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+++ b/gmp-6.3.0/tests/rand/t-mt.c
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+/* Test the Mersenne Twister random number generator.
+
+Copyright 2002 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library test suite.
+
+The GNU MP Library test suite is free software; you can redistribute it
+and/or modify it under the terms of the GNU 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 test suite 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 General
+Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
+
+#include <stdio.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 */
+}