David A. Black wrote:
> Hi --
> 
> On Sun, 7 Mar 2004, Joel VanderWerf wrote:
> 
> 
>>Hal Fulton wrote:
>>
>>>Someone suggested allowing not just rand(Fixnum) and rand(Range)
>>>but in general rand(Enumerable).
>>
>>Would be tricky for general Enumerables...
>>
>>   class Seq
>>     include Enumerable
>>     def each
>>       i = 0
>>       loop do
>>         yield i
>>         i += 1
>>       end
>>     end
>>   end
> 
> 
> I'm not quite following (?) -- I think the original idea was
> something like:
> 
>   module Enumerable
>     def rand
>       to_a[Kernel.rand(size)]
>     end
>   end

Wouldn't size be infinite in this case?

Now, if you wanted a non-uniform random distribution, it would be 
possible. But how do you uniformly choose from an infinite set?