Get template name

[Dicebot]

On Monday, 29 July 2013 at 23:02:57 UTC, JS wrote:
> __FUNCTION__ does not return anything when used in templates.
>
> For debugging purposes I sometimes use pragma(msg, 
> template_name); (with template_name being the name of the 
> template assigned an enum)

It can be relatively trivial or incredibly difficult, depending 
on exact string output for a given template you want get and set 
of template types supported.