[J3] Overriding type-bound procedure used in generic

Reuben D. Budiardja reubendb at ornl.gov
Mon May 5 16:46:49 UTC 2025


Hi all,

I'd like some help with this.

Consider the code below.

1. What should the output be?

Two compilers I tried give:
Init G
Init F

while two other compilers give:
Init F
Init F

2. Should it matter if the access spec of the type-bound statement 
"Init_T" is changed to "public"? My understanding is that it should not 
(from 19.5.4 24-007), but in my test if I do that all four compilers 
then agree in the output:
Init_G
Init_F


Thanks,
Reuben

-----------------------------------

module F_M
   implicit none
   private

   type, public :: F_T
   contains
     procedure, private, pass :: &
       Init_T
     generic, public :: &
       Init => Init_T
   end type F_T
contains
   subroutine Init_T ( FS )
     class ( F_T ), intent ( inout ) :: &
       FS
     print*, 'Init F'
   end subroutine Init_T

end module F_M


module G_M
   use F_M
   implicit none
   private

   type, public, extends ( F_T ) :: G_T
   contains
     procedure, private, pass :: &
       Init_T
   end type G_T
contains
   subroutine Init_T ( FS )
     class ( G_T ), intent ( inout ) :: &
       FS
     print*, 'Init G'
   end subroutine Init_T

end module G_M


program Test

   use G_M
   implicit none
   type ( G_T ), allocatable :: &
     G

   allocate ( G )
   call G % Init (  )
   call G % F_T % Init ( )

end program Test




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