Modify Function Pointer to Take Additional Parameters

[jmh530 via Digitalmars-d-learn]

On Friday, 19 February 2016 at 22:07:25 UTC, Chris Wright wrote:
>
> If you want to cast function pointers successfully, you have to 
> know the D calling convention.
>
> [snip]

I figured there was an explanation. Definitely "here be dragons" 
territory. I hope I can figure out a better solution, but the 
behavior I'm trying to get is really just a nice to have.