7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @library /test/lib
27 * @run main MultiplicationTests
28 * @bug 5100935
29 * @summary Tests for multiplication methods (use -Dseed=X to set PRNG seed)
30 * @key randomness
31 */
32
33 import java.math.BigInteger;
34 import jdk.test.lib.RandomFactory;
35
36 public class MultiplicationTests {
37 private MultiplicationTests(){}
38
39 // Number of random products to test.
40 private static final int COUNT = 1 << 16;
41
42 // Initialize shared random number generator
43 private static java.util.Random rnd = RandomFactory.getRandom();
44
45 // Calculate high 64 bits of 128 product using BigInteger.
46 private static long multiplyHighBigInt(long x, long y) {
|
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @library /test/lib
27 * @build jdk.test.lib.RandomFactory
28 * @run main MultiplicationTests
29 * @bug 5100935
30 * @summary Tests for multiplication methods (use -Dseed=X to set PRNG seed)
31 * @key randomness
32 */
33
34 import java.math.BigInteger;
35 import jdk.test.lib.RandomFactory;
36
37 public class MultiplicationTests {
38 private MultiplicationTests(){}
39
40 // Number of random products to test.
41 private static final int COUNT = 1 << 16;
42
43 // Initialize shared random number generator
44 private static java.util.Random rnd = RandomFactory.getRandom();
45
46 // Calculate high 64 bits of 128 product using BigInteger.
47 private static long multiplyHighBigInt(long x, long y) {
|