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 * @bug 4101566 4831589
27 * @summary Check for correct implementation of Math.rint(double)
28 */
29
30 import sun.misc.DoubleConsts;
31
32 public class Rint {
33
34 static int testRintCase(double input, double expected) {
35 int failures = 0;
36 double result;
37 failures += Tests.test("Math.rint", input, Math.rint(input), expected);
38 failures += Tests.test("Math.rint", -input, Math.rint(-input), -expected);
39 failures += Tests.test("StrictMath.rint",
40 input, StrictMath.rint(input), expected);
41 failures += Tests.test("StrictMath.rint", -input,
42 StrictMath.rint(-input), -expected);
43 return failures;
44 }
45
46
47 public static void main(String args[]) {
48 int failures = 0;
49 double twoToThe52 = Math.scalb(1.0, 52); // 2^52
50
51 double [][] testCases = {
52 {0.0, 0.0},
53 {Double.MIN_VALUE, 0.0},
54 {Math.nextDown(DoubleConsts.MIN_NORMAL), 0.0},
55 {DoubleConsts.MIN_NORMAL, 0.0},
56
57 {0.2, 0.0},
58
59 {Math.nextDown(0.5), 0.0},
60 { 0.5, 0.0},
61 { Math.nextUp(0.5), 1.0},
62
63 {0.7, 1.0},
64 {Math.nextDown(1.0), 1.0},
65 { 1.0, 1.0},
66 { Math.nextUp(1.0), 1.0},
67
68 {Math.nextDown(1.5), 1.0},
69 { 1.5, 2.0},
70 { Math.nextUp(1.5), 2.0},
71
72 {4.2, 4.0},
73 {4.5, 4.0},
74 {4.7, 5.0},
75
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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 * @bug 4101566 4831589
27 * @summary Check for correct implementation of Math.rint(double)
28 */
29
30 public class Rint {
31
32 static int testRintCase(double input, double expected) {
33 int failures = 0;
34 double result;
35 failures += Tests.test("Math.rint", input, Math.rint(input), expected);
36 failures += Tests.test("Math.rint", -input, Math.rint(-input), -expected);
37 failures += Tests.test("StrictMath.rint",
38 input, StrictMath.rint(input), expected);
39 failures += Tests.test("StrictMath.rint", -input,
40 StrictMath.rint(-input), -expected);
41 return failures;
42 }
43
44
45 public static void main(String args[]) {
46 int failures = 0;
47 double twoToThe52 = Math.scalb(1.0, 52); // 2^52
48
49 double [][] testCases = {
50 {0.0, 0.0},
51 {Double.MIN_VALUE, 0.0},
52 {Math.nextDown(Double.MIN_NORMAL), 0.0},
53 {Double.MIN_NORMAL, 0.0},
54
55 {0.2, 0.0},
56
57 {Math.nextDown(0.5), 0.0},
58 { 0.5, 0.0},
59 { Math.nextUp(0.5), 1.0},
60
61 {0.7, 1.0},
62 {Math.nextDown(1.0), 1.0},
63 { 1.0, 1.0},
64 { Math.nextUp(1.0), 1.0},
65
66 {Math.nextDown(1.5), 1.0},
67 { 1.5, 2.0},
68 { Math.nextUp(1.5), 2.0},
69
70 {4.2, 4.0},
71 {4.5, 4.0},
72 {4.7, 5.0},
73
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