Slow performance compared to C++, ideas?

[Peter Alexander]

On Friday, 7 June 2013 at 07:22:18 UTC, Walter Bright wrote:
> A pretty good metric of some feature being used is the 
> frequency it comes up in discussion here and the action it sees 
> in bugzilla.
>
> There are two obvious reasons why a feature would not have much 
> buzz:
>
> 1. it works perfectly
> 2. it isn't being used
>
> Value Range Propagation is a pretty good example of (1). Sadly, 
> I suspect -cov is (2).
>
> I'd be happy to be wrong about that.

Or it just isn't used much compared to other things and works 
well enough when it is.

For what it's worth, there are a few bugs on Bugzilla about -cov, 
so it is being used.