2013/2/3 Joel de Guzman <djowel@gmail.com>
On 2/3/13 9:59 PM, TONGARI wrote:
Just uploaded to:
https://github.com/jamboree/**Boost.FusionEx<https://github.com/jamboree/Boost.FusionEx>
There are: + mapping + left_mapping + full_mapping
Simple tests contained. Comments/improvements are welcome :^)
By looking at the sample code, it seems I misunderstood your original post by a long shot.
How did you understand it then? There's a bit different than what I originally wrote. The first thought was to map-assign the data: mapping(dst, src) And now it's more general: result = mapping(a, b, binary_op_on_data) returns a view which is also associative FWIW, "mapping/left_mapping/full_mapping" are analog to "inner join/left join/full join" in relational DB. Could you please provide some rough text about
these algorithms/views by presenting some real world use cases and how these are solved by your additions?
I intend to do it for mapping between different pixel formats. e.g. gil::rgba8_pixel_t dst; gil::bgra8_pixel_t src; eval(left_mapping(view(dst), src, alpha_blend));
Thanks for your patience!
Thanks