1: static char help[] = "Illustrates creating an options database.\n\n";

  3: #include <petscsys.h>
  4: #include <petscviewer.h>
  5: int main(int argc, char **argv)
  6: {
  7:   PetscOptions options;

  9:   PetscFunctionBeginUser;
 10:   PetscCall(PetscInitialize(&argc, &argv, NULL, help));
 11:   PetscCall(PetscOptionsCreate(&options));
 12:   PetscCall(PetscOptionsInsert(options, &argc, &argv, "optionsfile"));
 13:   PetscCall(PetscOptionsInsertString(options, "-option1 value1 -option2 -option3 value3"));
 14:   PetscCall(PetscOptionsView(options, PETSC_VIEWER_STDOUT_WORLD));
 15:   PetscCall(PetscOptionsDestroy(&options));
 16:   PetscCall(PetscFinalize());
 17:   return 0;
 18: }

 20: /*TEST

 22:    test:
 23:      localrunfiles: optionsfile

 25: TEST*/