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! { dg-do run }

! Modified program from http://groups.google.com/group/\

! comp.lang.fortran/browse_frm/thread/423e4392dc965ab7#

!

module myoperator

   contains

      function dadd(arg1,arg2)

         integer ::dadd(2)

         integer, intent(in) :: arg1(2), arg2(2)

         dadd(1)=arg1(1)+arg2(1)

         dadd(2)=arg1(2)+arg2(2)

      end function dadd

end module myoperator

program test_interface

   use myoperator

   implicit none

   interface operator (.myadd.)

      module procedure dadd

   end interface

   integer input1(2), input2(2), mysum(2)

   input1 = (/0,1/)

   input2 = (/3,3/)

   mysum = input1 .myadd. input2

   if (mysum(1) /= 3 .and. mysum(2) /= 4) call abort

   call test_sub(input1, input2)

end program test_interface

subroutine test_sub(input1, input2)

   use myoperator

   implicit none

   interface operator (.myadd.)

      module procedure dadd

   end interface

   integer, intent(in) :: input1(2), input2(2)

   integer mysum(2)

   mysum = input1 .myadd. input2

   if (mysum(1) /= 3 .and. mysum(2) /= 4) call abort

end subroutine test_sub

! { dg-final { cleanup-modules "myoperator" } }