Another idiom I wish were gone from phobos/druntime

[via Digitalmars-d]

On Thursday, 5 February 2015 at 08:25:56 UTC, Jonathan M Davis 
wrote:
> case where in blocks would be of value, though I really don't 
> see much
> difference between checking the assertions in an in block and 
> checking any
> other assertions at compile time that can be checked at compile 
> time -

The difference is that implementation asserts() are part of 
debugging within a module, while contracts may be active in 
release mode so that you know which module failed and which 
subcontractor to call to fix it.