[boost] [range] A Range Library Proposal implementation

From: shunsuke (pstade.mb_at_[hidden])
Date: 2007-05-18 16:48:42

Hi,

Oven, an implementation of the Range Library Proposal, was uploaded to Vault/Algorithms.
I suppose it is considered as Boost.View2 or range_ex2.

The file:
   http://tinyurl.com/2axp2l

Range Library Proposal:
  http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1871.html

An example "lazy merge sort":

    typedef
        any_range<int const&, boost::forward_traversal_tag>
    range;

    range merge_sort(range rng)
    {
        typedef boost::result_of<op_distance(range&)>::type diff_t;

        diff_t d = distance(rng);

        if (d < 2)
            return rng;
        else {
            return make_merged(
                merge_sort(rng|taken(d/2)),
                merge_sort(rng|dropped(d/2))
            );
        }
    }

The status is highly preliminary, but moderately tested.
Any feedback appreciated.

Regards,

-- 
Shunsuke Sogame