Another idiom I wish were gone from phobos/druntime

[via Digitalmars-d]

On Thursday, 5 February 2015 at 09:09:32 UTC, Ola Fosheim Grøstad 
wrote:
> IF and ONLY IF the precondition holds, then the postcondition 
> holds.

Duh, that was wrong... It is only IF, not IFF...