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module class_43_mod
type, abstract :: SomeType
end type SomeType
type, abstract :: Base
contains
procedure(method), deferred :: method
end type Base
abstract interface
subroutine method(self,arr)
import
class(Base), intent(inout) :: self
class(SomeType), intent(inout) :: arr(:)
end subroutine method
end interface
type, extends(Base) :: Extended
class(Base), allocatable :: basic
contains
procedure :: method => implementation
end type Extended
contains
subroutine implementation(self,arr)
class(Extended), intent(inout) :: self
class(SomeType), intent(inout) :: arr(:)
call self%basic%method(arr)
end subroutine implementation
end module class_43_mod
program class_43
use class_43_mod
end program class_43
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