gcc/testsuite/gfortran.dg/generic_14.f90

   1 ! { dg-do compile }
   2 !
   3 ! Check whether MODULE PROCEDUREs are properly treated
   4 ! They need to be contained in a procedure, i.e. an
   5 ! interface in another procedure is invalid; they may, however,
   6 ! come from a use-associated procedure.
   7 ! (The PROCEDURE statement allows also for non-module procedures
   8 !  if there is an explicit interface.)
   9 !
  10 ! PR fortran/33228
  11 !
  12 module inclmod
  13   implicit none
  14   interface
  15     subroutine wrong1(a)
  16       integer :: a
  17     end subroutine wrong1
  18   end interface
  19   interface gen_incl
  20     module procedure ok1
  21   end interface gen_incl
  22   external wrong2
  23   external wrong3
  24   real wrong3
  25 contains
  26   subroutine ok1(f)
  27     character :: f
  28   end subroutine ok1
  29 end module inclmod
  30
  31 module a
  32   use inclmod
  33   implicit none
  34   interface gen
  35     subroutine ok1_a(a,b)
  36       integer :: a,b
  37     end subroutine ok1_a
  38     module procedure ok1, ok2_a
  39   end interface gen
  40 contains
  41   subroutine ok2_a(a,b,c)
  42      integer :: a,b,c
  43   end subroutine ok2_a
  44 end module a
  45
  46 module b
  47   use inclmod
  48   interface gen_wrong_0
  49     module procedure gen_incl  ! { dg-error "Cannot change attributes" }
  50   end interface gen_wrong_0
  51 end module b
  52
  53 module c
  54   use inclmod
  55   interface gen_wrong_1
  56     module procedure wrong1  ! { dg-error "is not a module procedure" }
  57   end interface gen_wrong_1
  58 end module c
  59
  60 module d
  61   use inclmod
  62   interface gen_wrong_2
  63     module procedure wrong2  ! { dg-error "Cannot change attributes" }
  64   end interface gen_wrong_2
  65 end module d
  66
  67 module e
  68   use inclmod
  69   interface gen_wrong_3
  70     module procedure wrong3  ! { dg-error "Cannot change attributes" }
  71   end interface gen_wrong_3
  72 end module e
  73
  74 module f
  75   implicit none
  76   interface
  77     subroutine wrong_a(a)
  78       integer :: a
  79     end subroutine wrong_a
  80   end interface
  81   interface gen_wrong_4
  82     module procedure wrong_a  ! { dg-error "is not a module procedure" }
  83   end interface gen_wrong_4
  84 end module f
  85
  86 module g
  87   implicit none
  88   external wrong_b            ! { dg-error "has no explicit interface" }
  89   interface gen_wrong_5
  90     module procedure wrong_b  ! wrong, see above
  91   end interface gen_wrong_5
  92 end module g
  93
  94 module h
  95   implicit none
  96   external wrong_c            ! { dg-error "has no explicit interface" }
  97   real wrong_c
  98   interface gen_wrong_6
  99     module procedure wrong_c  ! wrong, see above
 100   end interface gen_wrong_6
 101 end module h
 102
 103 end
 104
 105 ! { dg-final { cleanup-modules "a inclmod" } }