[petsc-users] MatSetValues vs MatSetValuesBlocked

[Jed Brown]

Nidish <nb25 at rice.edu> writes:

> Urgh I must've been blind - flycheck was throwing warnings only if I 
> didn't cast elstiff[][] into const PetscScalar* .

You don't have to cast there either, just pass &elstiff[0][0], for example.