Function copy

src/api/cpp/index.cpp:24–33

}

void copy(array &dst, const array &src, const index &idx0, const index &idx1,
          const index &idx2, const index &idx3) {
    unsigned nd = dst.numdims();

    af_index_t indices[] = {idx0.get(), idx1.get(), idx2.get(), idx3.get()};

    af_array lhs       = dst.get();
    const af_array rhs = src.get();
    AF_THROW(af_assign_gen(&lhs, lhs, nd, indices, rhs));
}

index::index() : impl{} {
    impl.idx.seq = af_span;