Just an example, why D rocks, and C++ s***s...

[mee6]

This just boils down to the standard libraries and what they 
implement. You can write that helper function put it in a util 
file and never have to write it again. D is considerably lacking 
when it comes to robust third party libraries. C++ has so many 
good libraries in comparison. For D you pretty much have to roll 
your own implementation for everything else. There isn't even 
basic @nogc containers, so there's a lot you end up having to 
write yourself. The allocators are experimental, not sure how 
long it's been now. So there isn't a design philosophy to follow, 
you'd be making it from the ground up and that's a lot more work 
than a simple utility function. It feels like it's just left 
unsolved, it feels that way for D a lot.