[MATH-1222] Use Double.isNaN(double) instead of x != x in FastMath

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0
• Labels: github
• Assignee: Unassigned
• Reporter: Benedikt Ritter
• Created: 05/May/15 15:42
• Updated: 09/May/15 20:17
• Resolved: 09/May/15 20:17

Description

As discussed in http://markmail.org/thread/f6juilawhswblnve we should use Double.isNaN(double) for checking whether a double is NaN in FastMath instead of using the odd looking x != x comparison.