static char help[] = "Tests PCView() before PCSetup() with -pc_type lu.\n\n";

#include <petscmat.h>
#include <petscpc.h>

int main(int argc, char **args)
{
  Mat A;
  PC  pc;

  PetscFunctionBeginUser;
  PetscCall(PetscInitialize(&argc, &args, NULL, help));
  PetscCall(MatCreate(PETSC_COMM_WORLD, &A));
  PetscCall(MatSetSizes(A, 1, 1, 1, 1));
  PetscCall(MatSetFromOptions(A));
  PetscCall(MatSetUp(A));
  PetscCall(MatSetValue(A, 0, 0, 1, INSERT_VALUES));
  PetscCall(MatAssemblyBegin(A, MAT_FINAL_ASSEMBLY));
  PetscCall(MatAssemblyEnd(A, MAT_FINAL_ASSEMBLY));
  PetscCall(MatView(A, PETSC_VIEWER_STDOUT_WORLD));
  PetscCall(PCCreate(PETSC_COMM_WORLD, &pc));
  PetscCall(PCSetOperators(pc, A, A));
  PetscCall(PCSetType(pc, PCLU));
  PetscCall(PCView(pc, PETSC_VIEWER_STDOUT_WORLD));
  PetscCall(PCDestroy(&pc));
  PetscCall(MatDestroy(&A));
  PetscCall(PetscFinalize());
  return 0;
}

/*TEST

   test:

TEST*/