for_each flag_set

[Neargye]

Draft to fix #100

[Neargye]

for_each was made by a method, not a free function. I'm not sure what's best.

It is possible to make functions begin()/end(), but to do this will have to create a class reference and iterator like for vector<bool>.

[foonathan]

Sorry for the delay, I'm busy with university stuff at the moment.

I think I prefer a begin()/end() interface with a proxy over the single function with callback. Would you be willing to try something like that out as well?

[Neargye]

Thank you for your feedback.

Yes, I will try to make a solution with begin()/end().
I'll update this PR when I have something to show.