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! { dg-do compile }
!
! PR fortran/31559
! Do not allow assigning to external functions
!
! Contributed by Steve Kargl <sgk@troutmask.apl.washington.edu>
!
module mod
implicit none
contains
integer function bar()
bar = 4
end function bar
subroutine a()
implicit none
real :: fun
external fun
interface
function funget(a)
integer :: a
end function
subroutine sub()
end subroutine sub
end interface
sub = 'a' ! { dg-error "is not a variable" }
fun = 4.4 ! { dg-error "is not a variable" }
funget = 4 ! { dg-error "is not a variable" }
bar = 5 ! { dg-error "is not a variable" }
end subroutine a
end module mod
end
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