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! { 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") call abort
if (recruit%name /= recruit%service%name) call abort
if (recruit%supervisor%ss /= 123455) call abort
if (recruit%supervisor%ss /= supervisor%person%ss) call abort
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
! { dg-final { cleanup-modules "persons person_education" } }
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