enforce()?

[Walter Bright]

Ali Çehreli wrote:
> bearophile wrote:
>> I have counted about 200 usages of std.contracts.enforce() inside 
>> Phobos. Can you tell me what's the purpose of enforce() in a language 
>> that has built-in Contract Programming?
> 
> I can see two benefits:

The difference is not based on those 3 points, but on what Andrei wrote here. 
Contracts and error checking are completely distinct activities and should not 
be conflated.