jagged_vector_buffer constructor with vecmem::vector ?

[beomki-yeo]

@krasznaa Is it possible to replace std::vector arguments with vecmem::vector arguments?

// Current constructor
jagged_vector_buffer(const std::vector<std::size_t>& sizes,
           const std::vector<std::size_t>& capacities,
           memory_resource& resource,
           memory_resource* host_access_resource = nullptr);

// What I want to have
jagged_vector_buffer(const vecmem::vector<std::size_t>& sizes,
           const vecmem::vector<std::size_t>& capacities,
           memory_resource& resource,
           memory_resource* host_access_resource = nullptr);

What I am trying to do is estimating capacities (in vecmem::vector format) from counting kernel, and put the capacities into the jagged_vector_buffer objects.

[krasznaa]

🤔 I'd like to couple this with the larger cleanup, which I outlined in #95.

Unfortunately the simple solution that I first thought of (providing an optional vecmem::copy object to the vecmem::data::jagged_vector_buffer constructor), does not work. So I'll have to think about this a bit more... 😦

[beomki-yeo]

Okay I see. :p