[petsc-dev] Patch providing PCCompositeGetNumPC

[Andrew Cramer]

Hi Dev,


I was recently using PCCompositeGetPC and noticed a lack of a function to provide the number of sub PCs in the composite PC. This is a patch that provides a function PCCompositeGetNumPC(PC,PetscInt *) so you can access the sub-pcs safely.


Thanks for the great work you guys do,

Andrew Cramer
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