Function set_intersect

cp-profiler/src/cpprofiler/analysis/path_comp.cpp:12–26

A wrapper around std::set_intersection; copying is intended

/// A wrapper around std::set_intersection; copying is intended
static vector<Label> set_intersect(vector<Label> v1, vector<Label> v2)
{
    /// set_intersection requires the resulting set to be
    /// at least as large as the smallest of the two sets
    vector<Label> res(std::min(v1.size(), v2.size()));

    std::sort(begin(v1), end(v1));
    std::sort(begin(v2), end(v2));

    auto it = std::set_intersection(begin(v1), end(v1), begin(v2), end(v2),
                                    begin(res));
    res.resize(it - begin(res));

    return res;
}

/// A wrapper around std::set_symemtric_diff; copying is intended
static vector<Label> set_symmetric_diff(vector<Label> v1, vector<Label> v2)