Update cpp codes, fixes #2

[kevinresol]

This fixes cpp builds.

updates: the code works fine for both neko and windows cpp

[PDeveloper]

https://github.com/HaxeFoundation/hxcpp/issues/125

This just got resolved, which was behind the neko/hxcpp differences when I started to fix functionality for this. You should go through another check to see which way the functionality got fixed (which of the 2 behaviours is now the default one), and then it should hopefully work both on neko and hxcpp.