cent and ucent?

[Daniel Murphy]

> gcc does on 64-bit systems. long long is 128-bit on 64-bit Linux. I don't 
> know about llvm, but it's supposed to be gcc-compatible, so I assume that 
> it's the same.
>
> - Jonathan M Davis

>
> Can't speak for GCC, but LLVM allows arbitrary-size integers. SDC maps 
> cent/ucent to i128.
>
> - Alex

That's good news.  I can't find any information about int128_t in 32 bit 
gcc, but if the support is already there then it's just the dmd backend that 
need to be upgraded.