Method getParents

Core/Variational/var.cpp:105–116

std::vector<var>& var::getChildren() const { return pimpl->children; }

std::vector<var> var::getParents() const {
    std::vector<var> _parents;
    for (std::weak_ptr<impl> parent : pimpl->parents) {
        //        _parents.emplace_back( parent.lock() );
        auto tmp_data = parent.lock();
        if (nullptr != tmp_data)
        {
            _parents.emplace_back(tmp_data);
        }
    }
    return _parents;
}

long var::getUseCount() const {
    return pimpl.use_count();