Kotlin
Convert equality check with 'NaN' to 'isNaN' call
Warning
New
Last modified: 03 December 2024 Reports an equality check with Float.NaN
or Double.NaN
that should be replaced with an isNaN()
check.
According to IEEE 754, equality check against NaN always returns false
, even for NaN == NaN
. Therefore, such a check is likely to be a mistake.
The quick-fix replaces comparison with isNaN()
check that uses a different comparison technique and handles NaN
values correctly.
Example:
fun check(value: Double): Boolean {
return Double.NaN == value
}
After the fix is applied:
fun check(value: Double): Boolean {
return value.isNaN()
}
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
ConvertNaNEquality
Inspection Details | |
---|---|
By default bundled with: | |
Can be installed with plugin: | Kotlin, 243.23126-IJ |
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