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! { dg-do run }
!
! PR fortran/51972
! Also tests fixes for PR52102
!
! Check whether DT assignment with polymorphic components works.
!
subroutine test1 ()
type t
integer :: x
end type t
type t2
class(t), allocatable :: a
end type t2
type(t2) :: one, two
one = two
if (allocated (one%a)) STOP 1
allocate (two%a)
two%a%x = 7890
one = two
if (one%a%x /= 7890) STOP 2
deallocate (two%a)
one = two
if (allocated (one%a)) STOP 3
end subroutine test1
subroutine test2 ()
type t
integer, allocatable :: x(:)
end type t
type t2
class(t), allocatable :: a
end type t2
type(t2) :: one, two
one = two
if (allocated (one%a)) STOP 4
allocate (two%a)
one = two
if (.not.allocated (one%a)) STOP 5
if (allocated (one%a%x)) STOP 6
allocate (two%a%x(2))
two%a%x(:) = 7890
one = two
if (any (one%a%x /= 7890)) STOP 7
deallocate (two%a)
one = two
if (allocated (one%a)) STOP 8
end subroutine test2
subroutine test3 ()
type t
integer :: x
end type t
type t2
class(t), allocatable :: a(:)
end type t2
type(t2) :: one, two
! Test allocate with array source - PR52102
allocate (two%a(2), source = [t(4), t(6)])
if (allocated (one%a)) STOP 9
one = two
if (.not.allocated (one%a)) STOP 10
if ((one%a(1)%x /= 4)) STOP 11
if ((one%a(2)%x /= 6)) STOP 12
deallocate (two%a)
one = two
if (allocated (one%a)) STOP 13
! Test allocate with no source followed by assignments.
allocate (two%a(2))
two%a(1)%x = 5
two%a(2)%x = 7
if (allocated (one%a)) STOP 14
one = two
if (.not.allocated (one%a)) STOP 15
if ((one%a(1)%x /= 5)) STOP 16
if ((one%a(2)%x /= 7)) STOP 17
deallocate (two%a)
one = two
if (allocated (one%a)) STOP 18
end subroutine test3
subroutine test4 ()
type t
integer, allocatable :: x(:)
end type t
type t2
class(t), allocatable :: a(:)
end type t2
type(t2) :: one, two
if (allocated (one%a)) STOP 19
if (allocated (two%a)) STOP 20
allocate (two%a(2))
if (allocated (two%a(1)%x)) STOP 21
if (allocated (two%a(2)%x)) STOP 22
allocate (two%a(1)%x(3), source=[1,2,3])
allocate (two%a(2)%x(5), source=[5,6,7,8,9])
one = two
if (.not. allocated (one%a)) STOP 23
if (.not. allocated (one%a(1)%x)) STOP 24
if (.not. allocated (one%a(2)%x)) STOP 25
if (size(one%a) /= 2) STOP 26
if (size(one%a(1)%x) /= 3) STOP 27
if (size(one%a(2)%x) /= 5) STOP 28
if (any (one%a(1)%x /= [1,2,3])) STOP 29
if (any (one%a(2)%x /= [5,6,7,8,9])) STOP 30
deallocate (two%a(1)%x)
one = two
if (.not. allocated (one%a)) STOP 31
if (allocated (one%a(1)%x)) STOP 32
if (.not. allocated (one%a(2)%x)) STOP 33
if (size(one%a) /= 2) STOP 34
if (size(one%a(2)%x) /= 5) STOP 35
if (any (one%a(2)%x /= [5,6,7,8,9])) STOP 36
deallocate (two%a)
one = two
if (allocated (one%a)) STOP 37
if (allocated (two%a)) STOP 38
end subroutine test4
call test1 ()
call test2 ()
call test3 ()
call test4 ()
end
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