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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/proc_ptr_comp_pass_7.f90
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+! { dg-do compile }
+!
+! PR 46662: [OOP] gfortran accepts "CALL polymorphic%abstract_type%ppc()"
+!
+! Contributed by Wolfgang Kilian <kilian@hep.physik.uni-siegen.de>
+! cf. http://groups.google.com/group/comp.lang.fortran/browse_thread/thread/a0857fa4a692d518
+
+module types
+ implicit none
+
+ type, abstract :: base_t
+ integer :: i = 0
+ procedure(base_write_i), pointer :: write_procptr
+ contains
+ procedure :: write_i => base_write_i
+ end type base_t
+
+ type, extends (base_t) :: t
+ end type t
+
+contains
+
+ subroutine base_write_i (obj)
+ class (base_t), intent(in) :: obj
+ print *, obj%i
+ end subroutine base_write_i
+
+end module types
+
+
+program main
+ use types
+ implicit none
+
+ type(t) :: obj
+
+ print *, "Direct printing"
+ obj%i = 1
+ print *, obj%i
+
+ print *, "Direct printing via parent"
+ obj%base_t%i = 2
+ print *, obj%base_t%i
+
+ print *, "Printing via TBP"
+ obj%i = 3
+ call obj%write_i
+
+ print *, "Printing via parent TBP"
+ obj%base_t%i = 4
+ call obj%base_t%write_i ! { dg-error "is of ABSTRACT type" }
+
+ print *, "Printing via OBP"
+ obj%i = 5
+ obj%write_procptr => base_write_i
+ call obj%write_procptr
+
+ print *, "Printing via parent OBP"
+ obj%base_t%i = 6
+ obj%base_t%write_procptr => base_write_i
+ call obj%base_t%write_procptr ! { dg-error "is of ABSTRACT type" }
+
+end program main
+
+! { dg-final { cleanup-modules "types" } }