Feature Request: Object2DoubleMap.replaceAllDouble(), .computeIfPreset()

[InI4]

Hi,

I am doing some sparse vector calculation and found an immediate boost by switching from HashMap<Key,Double> to Object2DoubleOpenHashMap<Key>. Very nice, thank you for that! I also understand, that covering all the cases with boxing and unboxing kind of multiplies the API and you have to do balanced choices.

Having said that, I feel I missed APIs which would be convenient and helping to avoid more boxing and unboxing, i.e. gain another bit of performance. Given, one could provide an interface ObjectDouble2DoubleBiFunction<K> with a method double eval(K k, double v), it would be so nice to have methods Object2DoubleMap.replaceAllDouble(ObjectDouble2DoubleBiFunction<K> function) and Object2DoubleMap.computeIfPreset(ObjectDouble2DoubleBiFunction<K> function).

As a very simple sample, I currently feel I am kind of abusing mergeDouble() in this way:

   keySet().stream().forEach( k -> mergeDouble(k, 0.0, (v,u) -> 0.5 * v) );

but it would be nicer and should be slightly more performant to have it this way:

   replaceAllDouble( (k,v) -> 0.5 * v );

I didn't check, but I feel above suggested type of interface could have more applications.

Thank you for your attention.