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 * @summary Verify behaviour of Unsafe.get/putDouble
27 * @library /test/lib
28 * @modules java.base/jdk.internal.misc
29 * java.management
30 * @run main GetPutDouble
31 */
32
33 import java.lang.reflect.Field;
34 import jdk.test.lib.unsafe.UnsafeHelper;
35 import jdk.internal.misc.Unsafe;
36 import static jdk.test.lib.Asserts.*;
37
38 public class GetPutDouble {
39 public static void main(String args[]) throws Exception {
40 Unsafe unsafe = UnsafeHelper.getUnsafe();
41 Test t = new Test();
42 Field field = Test.class.getField("d");
43
44 long offset = unsafe.objectFieldOffset(field);
45 assertEquals(-1.0, unsafe.getDouble(t, offset));
46 unsafe.putDouble(t, offset, 0.0);
47 assertEquals(0.0, unsafe.getDouble(t, offset));
48
49 long address = unsafe.allocateMemory(8);
50 unsafe.putDouble(address, 1.0);
51 assertEquals(1.0, unsafe.getDouble(address));
52 unsafe.freeMemory(address);
53
54 double arrayDouble[] = { -1.0, 0.0, 1.0, 2.0 };
55 int scale = unsafe.arrayIndexScale(arrayDouble.getClass());
56 offset = unsafe.arrayBaseOffset(arrayDouble.getClass());
57 for (int i = 0; i < arrayDouble.length; i++) {
58 assertEquals(unsafe.getDouble(arrayDouble, offset), arrayDouble[i]);
59 offset += scale;
60 }
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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 * @summary Verify behaviour of Unsafe.get/putDouble
27 * @library /test/lib
28 * @modules java.base/jdk.internal.misc
29 * java.management
30 * @run main GetPutDouble
31 */
32
33 import java.lang.reflect.Field;
34 import jdk.internal.misc.Unsafe;
35 import static jdk.test.lib.Asserts.*;
36
37 public class GetPutDouble {
38 public static void main(String args[]) throws Exception {
39 Unsafe unsafe = Unsafe.getUnsafe();
40 Test t = new Test();
41 Field field = Test.class.getField("d");
42
43 long offset = unsafe.objectFieldOffset(field);
44 assertEquals(-1.0, unsafe.getDouble(t, offset));
45 unsafe.putDouble(t, offset, 0.0);
46 assertEquals(0.0, unsafe.getDouble(t, offset));
47
48 long address = unsafe.allocateMemory(8);
49 unsafe.putDouble(address, 1.0);
50 assertEquals(1.0, unsafe.getDouble(address));
51 unsafe.freeMemory(address);
52
53 double arrayDouble[] = { -1.0, 0.0, 1.0, 2.0 };
54 int scale = unsafe.arrayIndexScale(arrayDouble.getClass());
55 offset = unsafe.arrayBaseOffset(arrayDouble.getClass());
56 for (int i = 0; i < arrayDouble.length; i++) {
57 assertEquals(unsafe.getDouble(arrayDouble, offset), arrayDouble[i]);
58 offset += scale;
59 }
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