It appears that Math.rint() is not working correctly inside the web
browser. I ran the following test in hosted mode and in "web" mode:
StringBuffer sb = new StringBuffer();
sb.append("4200 * 1.0825 = ").append(4200 * 1.0825).append('\n');
sb.append("4200 * 0.0825 = ").append(4200 * 0.0825).append('\n');
sb.append("Math.rint(4200 * 1.0825) = ").append(Math.rint(4200 *
1.0825)).append('\n');
sb.append("Math.rint(4200 * 0.0825) = ").append(Math.rint(4200 *
0.0825)).append('\n');
sb.append("(long)Math.rint(4200 * 1.0825) =
").append((long)Math.rint(4200 * 1.0825)).append('\n');
sb.append("(long)Math.rint(4200 * 0.0825) =
").append((long)Math.rint(4200 * 0.0825)).append('\n');
testResults = sb.toString();
In hosted mode (using the Java libraries) I get the correct output:
4200 * 1.0825 = 4546.5
4200 * 0.0825 = 346.5
Math.rint(4200 * 1.0825) = 4546.0
Math.rint(4200 * 0.0825) = 346.0
(long)Math.rint(4200 * 1.0825) = 4546
(long)Math.rint(4200 * 0.0825) = 346
In firefox, IE7, and Google Chrome Math.rint() incorrectly rounds up
as follows:
4200 * 1.0825 = 4546.5
4200 * 0.0825 = 346.5
Math.rint(4200 * 1.0825) = 4547
Math.rint(4200 * 0.0825) = 347
(long)Math.rint(4200 * 1.0825) = 4547
(long)Math.rint(4200 * 0.0825) = 347
Does anyone have a correct implementation of Math.rint() for GWT
somewhere that I can use?
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