Method operator +

kdevplatform/language/util/setrepository.cpp:1010–1029

}

Set Set::operator +(const Set& first) const
{
    if (!first.m_tree)
        return *this;
    else if (!m_tree || !m_repository)
        return first;

    Q_ASSERT(m_repository == first.m_repository);

    QMutexLocker lock(m_repository->m_mutex);

    SetRepositoryAlgorithms alg(m_repository->m_dataRepository, m_repository);

    uint retNode = alg.set_union(m_tree, first.m_tree, m_repository->m_dataRepository.itemFromIndex(
                                     m_tree), m_repository->m_dataRepository.itemFromIndex(first.m_tree));

    ifDebug(alg.check(retNode));

    return Set(retNode, m_repository);
}

Set& Set::operator +=(const Set& first)
{