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

[ehsan sadrfaridpour]

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?

Best,
Ehsan
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