1: #include <../src/mat/impls/aij/mpi/mpiaij.h>

  3: PetscErrorCode MatGetDiagonalBlock_MPIAIJ(Mat A, Mat *a)
  4: {
  5:   PetscFunctionBegin;
  6:   *a = ((Mat_MPIAIJ *)A->data)->A;
  7:   PetscFunctionReturn(PETSC_SUCCESS);
  8: }