! Copyright (c) 1990-2018, NVIDIA CORPORATION.  All rights reserved.
!
! Licensed under the Apache License, Version 2.0 (the "License");
! you may not use this file except in compliance with the License.
! You may obtain a copy of the License at
!
!     http://www.apache.org/licenses/LICENSE-2.0
!
! Unless required by applicable law or agreed to in writing, software
! distributed under the License is distributed on an "AS IS" BASIS,
! WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
! See the License for the specific language governing permissions and
! limitations under the License.

! Test with 3 levels of inheritance of submodules
!

MODULE m
  INTEGER :: res                      ! The ancestor module m
  INTERFACE
    MODULE SUBROUTINE sub1(arg1)      ! Module procedure interface body for sub1
      INTEGER, intent(inout) :: arg1
    END SUBROUTINE

    MODULE SUBROUTINE sub2(arg2)      ! Module procedure interface body for sub1
      INTEGER, intent(inout) :: arg2
    END SUBROUTINE
  END INTERFACE
END MODULE

SUBMODULE (m) n                       ! The descendant submodule n
  CONTAINS                            ! Module subprogram part
    MODULE SUBROUTINE sub1(arg1)      ! Definition of sub1 by subroutine subprogram
      INTEGER, intent(inout) :: arg1
      res = arg1 + 1
    END SUBROUTINE sub1
END SUBMODULE

SUBMODULE (m:n) k                     ! The descendant submodule k
  CONTAINS                            ! Module subprogram part
    MODULE SUBROUTINE sub2(arg2)      ! Definition of sub1 by subroutine subprogram
      INTEGER, intent(inout) :: arg2
      res = arg2 + 1
    END SUBROUTINE sub2
END SUBMODULE

program test 
use m
implicit none
  integer :: k, h
  k = 99
  call sub1(k)
  if (res .ne. 100) then 
    print *, "FAIL"
  else
    print *, "PASS"
  end if
  call sub2(k)
  if (res .ne. 100) then
    print *, "FAIL"
  else
    print *, "PASS"
  end if
end program test