Imported gcc-4.4.3

[msp430-gcc.git] / gmp / tests / rand / t-iset.c

diff --git a/gmp/tests/rand/t-iset.c b/gmp/tests/rand/t-iset.c
new file mode 100644 (file)
index 0000000..b1e51e4
--- /dev/null
+++ b/gmp/tests/rand/t-iset.c
@@ -0,0 +1,68 @@
+/* Test gmp_randinit_set.
+
+Copyright 2003 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"
+
+/* expect after a gmp_randinit_set that the new and old generators will
+   produce the same sequence of numbers */
+void
+check_one (const char *name, gmp_randstate_ptr src)
+{
+  gmp_randstate_t dst;
+  mpz_t  sz, dz;
+  int    i;
+
+  gmp_randinit_set (dst, src);
+  mpz_init (sz);
+  mpz_init (dz);
+
+  for (i = 0; i < 20; i++)
+    {
+      mpz_urandomb (sz, src, 123);
+      mpz_urandomb (dz, dst, 123);
+
+      if (mpz_cmp (sz, dz) != 0)
+        {
+          printf     ("gmp_randinit_set didn't duplicate randstate\n");
+          printf     ("  algorithm: %s\n", name);
+          gmp_printf ("  from src:  %#Zx\n", sz);
+          gmp_printf ("  from dst:  %#Zx\n", dz);
+          abort ();
+        }
+    }
+
+  mpz_clear (sz);
+  mpz_clear (dz);
+  gmp_randclear (dst);
+}
+
+int
+main (int argc, char *argv[])
+{
+  tests_start ();
+
+  call_rand_algs (check_one);
+
+  tests_end ();
+  exit (0);
+}