1: !
  2: !   Example of getting an enum value from the options database in Fortran

  4: #include "petsc/finclude/petsc.h"
  5:       use petsc
  6:       implicit none

  8:       PetscErrorCode                            :: ierr
  9:       Character(len=99) list1(6)
 10:       PetscEnum                                 :: opt=-1
 11:       PetscBool                                 :: set=PETSC_FALSE

 13:       Call PetscInitialize(PETSC_NULL_CHARACTER,ierr)
 14:       if (ierr .ne. 0) then
 15:         print*,'Unable to initialize PETSc'
 16:         stop
 17:       endif
 18:       list1(1) = 'a123'
 19:       list1(2) = 'b456'
 20:       list1(3) = 'c789'
 21:       list1(4) = 'list1'
 22:       list1(5) = 'prefix_'
 23:       list1(6) = ''

 25:       write(*,20) list1(1)
 26: 20    format(A99)
 27:       call PetscOptionsGetEnum(PETSC_NULL_OPTIONS,'joe_','-jeff',list1,opt,set,ierr);CHKERRA(ierr)
 28:       write(*,*) 'opt is ', opt
 29:       write(*,*) 'set is ', set

 31:       Call PetscFinalize(ierr)
 32:       end

 34: !
 35: !/*TEST
 36: !
 37: !   build:
 38: !      requires: defined(PETSC_USING_F2003) defined(PETSC_USING_F90FREEFORM)
 39: !
 40: !   test:
 41: !      args: -joe_jeff b456
 42: !
 43: !TEST*/