[petsc-users] How to pass the Matrices between functions in c++

[Matthew Knepley]

On Mon, Jun 15, 2015 at 4:12 PM, ehsan sadrfaridpour <it.sadr at gmail.com>
wrote:

> Hi,
> Thanks for your great support.
> I am developing my code in c++ and I have created 4 matrices in a function
> and they are work fine.
> In the end of the function I need to delete them to release the memory
> space they occupied.
>
>    - My question:
>
> However, I need to pass these matrices to other functions (or another
> class) and use their contents before I destroy them in the current function.
>
> (I need it because now I have a long function and I want to make it
> smaller. Also I need to make a recursive function that gets matrices as
> input.)
>
> I was thinking of using a pointer to the beginning of each of them, but I
> am not very good at this. Also I am worried about how I destroy them.
>
> Would you please let me know what is the best approach for this?
>

You can just use "Mat A" since the PETSc type is a pointer.

  Thanks,

    Matt


> Best,
> Ehsan
>
>


-- 
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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