Can I measure how much memory is used in total, grouped by type?

[drathier]

On Sunday, 11 October 2020 at 20:58:22 UTC, drathier wrote:
> I think I'm using way to much memory for pointers, so I'd like 
> to see how much of my memory usage is taken up by pointers. 
> I've calculated the answer, but I wonder if the 
> compiler/runtime could do it for me, to get a faster and more 
> exact number?

More specifically, can I do this for a single value? E.g. how 
much memory is used by pointer types in this specific variable?