xtensor_3_N_7.hpp

template <class R, class U, size_t... I>
constexpr initializer_shape(U t, std::index_sequence<I...>)
{
    using size_type = typename R::value_type;
    return R{size_type(initializer_shape_impl<I>::value(t))...};
}

template <class R, class T>
constexpr R shape(T t)
{
    return initializer_shape<R>(t, std::make_index_sequence<
        initializer_dimension<decltype(t)>::value>());
}