From: gotoken@... (GOTO Kentaro)
Date: 2000-02-15T14:17:50+09:00
Subject: [ruby-talk:01366] Re: nice sample for functional stuff

In message "[ruby-talk:01365] Re: nice sample for functional stuff"
    on 00/02/14, Dave Thomas <Dave@thomases.com> writes:

>     module Enumerable
>
>       # inject(n) { |n, i| ...}
>       def inject(n)
>         each { |i| n = yield(n, i) }
>         return n
>       end
>
>       def sum
>         inject(0) {|n, i| n += i }
>       end
>     end

That is not bad though, I was interested in how I can sum up the
non-numerical elements.  The solution above uses an assumption such
that the result is 0 if enum.size == 0 but [ruby-talk:01364] doesn't.

# And, I wanted simply to use `callcc' then ;-)

Thanks, 

-- gotoken