Homework help, guys!

[John Colvin]

On Thursday, 1 August 2013 at 23:48:33 UTC, Timon Gehr wrote:
> On 08/02/2013 01:34 AM, hunt wrote:
>> Hello, guys. It is weird to ask about my homework here, but I 
>> haven't
>> gotten a proper answer yet. It's about D feature...maybe..
>>
>> http://dpaste.dzfl.pl/905d6ad7
>>
>> Question is that "Investigate how D allows you to defend your 
>> definition
>> of Map so that it may be used only with a type of key that is
>> comparable, and place this defense in your solution."
>>
>> Please leave your comments here. Thank you so much.
>>
>>
>>
>
> This should get you started:
>
> http://dlang.org/concepts.html
> http://dlang.org/traits.html#compiles

Also, say hello to the most esoteric expression I can think of: 
D's "is" expression

http://dlang.org/expression.html#IsExpression