Question

So I have this vector:

  vector<boost::tuple<ppa::Node*, ppa::Node*, ppa::Node*, bool> > wait;

And I want to search if for the ones that have true in them, how can I do that, that’s it.

Any suggestion I have looked into boost::phoenix but not really sure how it works, any ideas.

Thanks.

Answer 1

Since you are just starting off, here is some example code (I don’t what compiler you are using, but you could use auto, range-based for etc. if you have C++11 support):

typedef vector<boost::tuple<ppa::Node*, ppa::Node*, ppa::Node*, bool> >::iterator vec_iter;
for (vec_iter i = wait.begin(); i != wait.end(); ++i)
{
    if (boost::get<3>(*i) == true)
    {
       // This tuple has true in it, so do something
    }
}

C++11 version:

for (auto& i : wait)
{
    if (boost::get<3>(i) == true)
    {
        // Do stuff
    }
}