When will you implement cent and ucent?

[user1234]

On Sunday, 27 March 2022 at 16:41:33 UTC, Era Scarecrow wrote:

>  I glanced at the work Walter did. Looks like a simple version 
> of wideint. I thought it would just be the function prototypes. 
> Instead it looks like he minimally implemented it, but it is 
> basically just in the wrong spot, or not set to being called at 
> all (*not too familiar with the internals i'm not sure*).

To be called, the remaining work is that a library type must be 
implemented with operator overloads. Those operators overloads 
will call the core int128 module routines. Also operators 
overloads being templates, we can expect to have a size-efficient 
cg ("pay as you go").

druntime is the right place. For example LDC can patch the 
default implementation and use the LLVM-specific i128 
instructions. The library type will end up using the right thing.

At this point it looks like it still *would* be possible to hook 
cent/ucent operations to the int128 core module even if it's not 
the way that's been chosen as cent/ucent are now deprecated.