Inspectopedia Help

Comparison to 'Double.NaN' or 'Float.NaN'

Reports any comparisons to Double.NaN or Float.NaN. Such comparisons are never meaningful, as NaN is not equal to anything, including itself. Use the Double.isNaN() or Float.isNaN() methods instead.


if (x == Double.NaN) {...}

After the quick-fix is applied:

if (Double.isNaN(x)) {...}

Inspection Details

Available in:

IntelliJ IDEA 2023.3, Qodana for JVM 2023.3


Java, 233.SNAPSHOT

Last modified: 13 July 2023