[MATH-479] FastMath.signum(-0.0) does not agree with Math.signum(-0.0) ; no tests for signum

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.2, 3.0
• Fix Version/s: 2.2, 3.0
• Assignee: Unassigned
• Reporter: Sebb
• Created: 14/Jan/11 22:46
• Updated: 23/Mar/11 20:33
• Resolved: 19/Jan/11 19:06

Description

There are no unit tests for FastMath.signum(double) as yet.

Here is one that should work, but fails:

@Test
public void testSignum() {
    Assert.assertTrue(Double.valueOf(FastMath.signum(+0.0)).equals(Double.valueOf(Math.signum(+0.0)))); // OK
    Assert.assertTrue(Double.valueOf(FastMath.signum(-0.0)).equals(Double.valueOf(Math.signum(-0.0)))); // FAILS
}