Function getScalar

src/backend/oneapi/copy.cpp:220–235

template<typename T>
T getScalar(const Array<T> &in) {
    T retVal{};

    auto in_get = in.get();
    getQueue()
        .submit([&](sycl::handler &h) {
            auto acc_in =
                in_get->template get_access<sycl::access::mode::read>(
                    h, sycl::range{1},
                    sycl::id{static_cast<uintl>(in.getOffset())});
            h.copy(acc_in, &retVal);
        })
        .wait();

    return retVal;
}

#define INSTANTIATE_GETSCALAR(T) template T getScalar(const Array<T> &in);