112   PreCheck            precheck = NULL; /* precheck context for version in this file */  in main()  local
224     PetscCall(PreCheckCreate(PETSC_COMM_WORLD, &precheck));  in main()
225     PetscCall(PreCheckSetFromOptions(precheck));  in main()
226     PetscCall(SNESLineSearchSetPreCheck(linesearch, PreCheckFunction, precheck));  in main()
268   PetscCall(PreCheckDestroy(&precheck));  in main()
641 PetscErrorCode PreCheckSetFromOptions(PreCheck precheck)  in PreCheckSetFromOptions()  argument
646   PetscOptionsBegin(precheck->comm, NULL, "PreCheck Options", "none");  in PreCheckSetFromOptions()
647 … search directions necessary to activate step correction", "", precheck->angle, &precheck->angle, …  in PreCheckSetFromOptions()
650   if (flg) PetscCall(PetscViewerASCIIOpen(precheck->comm, "stdout", &precheck->monitor));  in PreCheckSetFromOptions()
660   PreCheck    precheck;  in PreCheckFunction()  local
669   precheck = (PreCheck)ctx;  in PreCheckFunction()
670   if (!precheck->Ylast) PetscCall(VecDuplicate(Y, &precheck->Ylast));  in PreCheckFunction()
671   Ylast = precheck->Ylast;  in PreCheckFunction()
684   angle_radians = precheck->angle * PETSC_PI / 180.;  in PreCheckFunction()
693 …precheck->monitor) PetscCall(PetscViewerASCIIPrintf(precheck->monitor, "Angle %g degrees less than…  in PreCheckFunction()
697 …precheck->monitor) PetscCall(PetscViewerASCIIPrintf(precheck->monitor, "Angle %g degrees exceeds t…  in PreCheckFunction()
702 PetscErrorCode PreCheckDestroy(PreCheck *precheck)  in PreCheckDestroy()  argument
705   if (!*precheck) PetscFunctionReturn(PETSC_SUCCESS);  in PreCheckDestroy()
706   PetscCall(VecDestroy(&(*precheck)->Ylast));  in PreCheckDestroy()
707   PetscCall(PetscViewerDestroy(&(*precheck)->monitor));  in PreCheckDestroy()
708   PetscCall(PetscFree(*precheck));  in PreCheckDestroy()
712 PetscErrorCode PreCheckCreate(MPI_Comm comm, PreCheck *precheck)  in PreCheckCreate()  argument
715   PetscCall(PetscNew(precheck));  in PreCheckCreate()
717   (*precheck)->comm  = comm;  in PreCheckCreate()
718   (*precheck)->angle = 10.; /* only active if angle is less than 10 degrees */  in PreCheckCreate()