Function validity

Core/Utilities/Tools/Fidelity.cpp:18–29

static bool validity(const QStat &state)
{
    size_t size = state.size();
    QPANDA_RETURN(size < 1 || (size & (size - 1)), false);
    double sum = 0;
    for_each(state.begin(), state.end(), [&](const qcomplex_t &item) {
        sum += std::norm(item);
    });
    QPANDA_RETURN(abs(sum - 1) > kEpsion, false);

    return true;
}

static bool validity(const qmatrix_t &m)
{