Rant after trying Rust a bit

[Walter Bright via Digitalmars-d]

On 7/23/2015 12:50 PM, H. S. Teoh via Digitalmars-d wrote:
> That assumes the template author is diligent (foolhardy?) enough to
> write unittests that cover all possible instantiations...

No, only each branch of the template code must be instantiated, not every 
possible instantiation. And we have a tool to help with that: -cov

Does anyone believe it is a good practice to ship template code that has never 
been instantiated?