| ! { dg-do run } |
| ! A basic functional test of derived type extension. |
| ! |
| ! Contributed by Paul Thomas <pault@gcc.gnu.org> |
| ! |
| module persons |
| type :: person |
| character(24) :: name = "" |
| integer :: ss = 1 |
| end type person |
| end module persons |
| |
| module person_education |
| use persons |
| type, extends(person) :: education |
| integer :: attainment = 0 |
| character(24) :: institution = "" |
| end type education |
| end module person_education |
| |
| use person_education |
| type, extends(education) :: service |
| integer :: personnel_number = 0 |
| character(24) :: department = "" |
| end type service |
| |
| type, extends(service) :: person_record |
| type (person_record), pointer :: supervisor => NULL () |
| end type person_record |
| |
| type(person_record), pointer :: recruit, supervisor |
| |
| ! Check that references by ultimate component work |
| |
| allocate (supervisor) |
| supervisor%name = "Joe Honcho" |
| supervisor%ss = 123455 |
| supervisor%attainment = 100 |
| supervisor%institution = "Celestial University" |
| supervisor%personnel_number = 1 |
| supervisor%department = "Directorate" |
| |
| recruit => entry ("John Smith", 123456, 1, "Bog Hill High School", & |
| 99, "Records", supervisor) |
| |
| if (trim (recruit%name) /= "John Smith") STOP 1 |
| if (recruit%name /= recruit%service%name) STOP 2 |
| if (recruit%supervisor%ss /= 123455) STOP 3 |
| if (recruit%supervisor%ss /= supervisor%person%ss) STOP 4 |
| |
| deallocate (supervisor) |
| deallocate (recruit) |
| contains |
| function entry (name, ss, attainment, institution, & |
| personnel_number, department, supervisor) result (new_person) |
| integer :: ss, attainment, personnel_number |
| character (*) :: name, institution, department |
| type (person_record), pointer :: supervisor, new_person |
| |
| allocate (new_person) |
| |
| ! Check mixtures of references |
| new_person%person%name = name |
| new_person%service%education%person%ss = ss |
| new_person%service%attainment = attainment |
| new_person%education%institution = institution |
| new_person%personnel_number = personnel_number |
| new_person%service%department = department |
| new_person%supervisor => supervisor |
| end function |
| end |