Hi,

I am currently using Eigen to solve large sparse equation systems. Internally, our tool uses std::vector<...> to represent (dynamically sized) vectors (like the right-hand side and the solution vector of the equation system) since we also want to be able to use other solvers as backends. To not further delve into details: right now, I have to copy the input vectors (right-hand side and initial guess) into Eigen's format which consumes quite some time (I need to call things in Eigen a lot of times) and memory. Is there any way to avoid this copy? In particular, wouldn't it be a cool thing to be able to move the vector contents inside Eigen's vectors and back or am I using Eigen horribly wrong and should be using it differently?

Thank you for your help,
Chris

Nevermind, I'm apparently too stupid to use the search correctly. If I'm not mistaken, the problem was solved here:

viewtopic.php?f=74&t=94839&p=331694&hilit=std%3A%3Avector#p331694

Sorry for my post,
Chris