hey! is this the expected behavior? println(Math.s...

# announcements

[ptashcka]

hey! is this the expected behavior?
println(Math.sqrt(-1.0) == Double.NaN) // false
println(Math.sqrt(-1.0).equals(Double.NaN)) // true

[ilya.gorbunov]

Yes, this is an expected behavior, NaN == NaN are compared as IEEE numbers and that results in false, however NaN.equals(NaN) are compared as boxed objects and results in true

[ilya.gorbunov]

Unfortunately, it isn't documented thoroughly yet

[ptashcka]

then I think the bug is with Idea inspections:
http://take.ms/Pfhq5