Testing for object property supporting "<" comparison

[Paul Backus]

On Tuesday, 11 May 2021 at 19:42:34 UTC, Chris Piker wrote:
> My problem is that I don't know how to specify that properties 
> must be comparable via "<".  I took a look at the Traits 
> module, but there are more things that are comparable then 
> Arithmetic or Floating point types.  Also, since the compiler 
> will catch objects that don't have these properties, maybe an 
> enum check is not worth implementing.

std.traits.isOrderingComparable

https://phobos.dpldocs.info/std.traits.isOrderingComparable.html