Method init_from_given_tensor

dnn/src/common/elemwise_helper.cpp:7–22

template <int arity>
void ElemwiseOpParamN<arity>::init_from_given_tensor() {
    megdnn_assert(!size && max_ndim == -1);
    max_ndim = 0;
    for (int i = 0; i < arity; ++i) {
        TensorLayout& layout = param[i].layout;
        layout = layout.collapse_contiguous();
        auto cur = layout.total_nr_elems();
        if (!i) {
            size = cur;
        } else {
            megdnn_assert(size == cur);
        }
        max_ndim = std::max<int>(max_ndim, layout.ndim);
    }
    megdnn_assert(size > 0 && max_ndim > 0);
}

template <int arity>
void ElemwiseOpParamN<arity>::assert_initialized() const {