Method operator -

kdevplatform/language/util/setrepository.cpp:1090–1105

}

Set Set::operator -(const Set& rhs) const
{
    if (!m_tree || !rhs.m_tree)
        return *this;

    Q_ASSERT(m_repository);

    QMutexLocker lock(m_repository->m_mutex);

    SetRepositoryAlgorithms alg(m_repository->m_dataRepository, m_repository);

    Set ret(alg.set_subtract(m_tree, rhs.m_tree, m_repository->m_dataRepository.itemFromIndex(
                                 m_tree), m_repository->m_dataRepository.itemFromIndex(rhs.m_tree)), m_repository);
    ifDebug(alg.check(ret.m_tree));
    return ret;
}

Set& Set::operator -=(const Set& rhs)
{