Template Constraints

[psychoticRabbit]

On Saturday, 24 February 2018 at 03:43:25 UTC, Jonathan M Davis 
wrote:
> That does not do what the OP requested at all. That tests 
> whether T is one of byte, ubyte, short, ushort, int, uint, 
> long, and ulong, whereas what the OP wants is to test whether T 
> can be cast to int.
>
> - Jonathan M Davis

yeah. I realised that after I had posted.

I posted a more suitable response after that though (I hope), 
with the intention of leading the OP away from an explicit cast, 
towards an implicit cast.