Porting Java code to D that uses << and >>> operators

[Basile B. via Digitalmars-d-learn]

On Monday, 1 May 2017 at 15:45:00 UTC, bachmeier wrote:
> I'm porting a small piece of Java code into D, but I've run 
> into this:
>
> int y1 = ((x12 & MASK12) << 22) + (x12 >>> 9) + ((x13 & MASK13) 
> << 7) + (x13 >>> 24);
>
> I have a basic understanding of those operators in both 
> languages, but I can't find a sufficiently detailed explanation 
> to tell me how to translate the Java into D and know that it's 
> guaranteed to give the same result. Can someone tell me the 
> correct D code to use?

It's the same code in D. It extracts consecutive bits in x12 and 
x13 (and maskxx), put them at the beginning (right shift) and add 
them.