Map: FloatMap?

[Ma rk]

hi,

I was wondering why no FloatMap is available in Haxe. Here's this guy: http://api.haxe.org/Map.html telling us "K" cannot be a Float. I checked it and the doc is right, there's no FloatMap :)
Why is that, lang devs?

Thanks for the answer in advance.

[Bernd Ritter]

You need a fixed value for a key in a map. A Float cannot provide that because of precision. That would be my guess.

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[Juraj Kirchheim]

Use a BalancedTree<Float> (http://api.haxe.org/haxe/ds/BalancedTree.html).

You can probably get a speedup by overriding the compare method to use
float comparison directly.

Best,
Juraj

[Sam MacPherson]

There are use cases I can see for this. For example if you want to use 53 bit integers instead of the regular 32 bits. Provided you arn't doing anything prone to rounding errors, I don't see why you shouldn't be able to use Floats as the key.