Cheat Engine

[bartek_s2]

I know for a fact there is a NaN value I'm interested in in memory, but cheat engine won't find any.

When using "Rounded (default)" it finds a lot of values that are not NaN, and when using either of the other 2 options, it's not finding any values.

[OldCheatEngineUser]

first how did you know that?
second it make no sense storing values as nan.
third ce cant find snan or qnan values. (also there is dirty bug in ce float searching that cant be trigger easily)

maybe the value is treated as a bit field which is sort of encoding, every couple bits represent something.

search for unknown initial value as 4bytes.

[bartek_s2]

I know there is a nan because it's actually displayed in a gui and it's a java code and I know roughly which field in the code the gui text corresponds to. And I don't think java really has any concept of qnan and snan (and I had to resort to scanning memory directly because of the other issue I posted, I'm not allowed to put a link to it there for some reason).

Anyway, I don't really need it to work anymore.

[ParkourPenguin]

Just search for it manually. double = 8-byte value between 0x7FF0000000000001 and 0xFFFFFFFFFFFFFFFF; float = 4-byte value between 0x7F800001 and 0xFFFFFFFF. This range also includes negative infinity, but if that's really important then make a custom type for it.