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.
If D had a compiler option switch to collect statistics on
feature usage, maybe you could get something a lot better than a
guess for both 1 and 2.
Such a thing may be useful for other reasons too.
--rt