[SOLVED] Declaration of platform dependent types

1

Currently I started to study Kha and saw the file FastFloat.hx which declares 32 floating point number for different platforms:

#if cpp
typedef FastFloat = cpp.Float32;
#elseif hl
typedef FastFloat = hl.F32;
#elseif java
typedef FastFloat = Single;
#else
typedef FastFloat = Float;
#end

I used abstract for this:

abstract Float32(#if hl hl.F32 #elseif cpp cpp.Float32 #else Float #end) from Float to Float {}

So the question is, is there any real difference and does abstract affect performance.

2

There’s no real difference. The underlying type on an abstract is what’s generated wherever the abstract is used.

The performance cost would be is if you’re using a constructor for the abstract? Since then youd be calling a function whenever it’s constructed.

2 Likes