! RUN: %S/test_errors.sh %s %t %flang_fc1
! 15.5.1 procedure reference constraints and restrictions

subroutine s01(elem, subr)
  interface
    elemental real function elem(x)
      real, intent(in), value :: x
    end function
    subroutine subr(dummy)
      procedure(sin) :: dummy
    end subroutine
    subroutine badsubr(dummy)
      import :: elem
      !ERROR: A dummy procedure may not be ELEMENTAL
      procedure(elem) :: dummy
    end subroutine
  end interface
  intrinsic :: cos
  call subr(cos) ! not an error
  !ERROR: Non-intrinsic ELEMENTAL procedure 'elem' may not be passed as an actual argument
  call subr(elem) ! C1533
  !ERROR: Actual argument associated with procedure dummy argument 'dummy=' is a null pointer
  call subr(null())
  !ERROR: Actual argument associated with procedure dummy argument 'dummy=' is typeless
  call subr(B"1010")
end subroutine

module m01
  procedure(sin) :: elem01
  interface
    elemental real function elem02(x)
      real, value :: x
    end function
    subroutine callme(f)
      external f
    end subroutine
  end interface
 contains
  elemental real function elem03(x)
    real, value :: x
  end function
  subroutine test
    intrinsic :: cos
    call callme(cos) ! not an error
    !ERROR: Non-intrinsic ELEMENTAL procedure 'elem01' may not be passed as an actual argument
    call callme(elem01) ! C1533
    !ERROR: Non-intrinsic ELEMENTAL procedure 'elem02' may not be passed as an actual argument
    call callme(elem02) ! C1533
    !ERROR: Non-intrinsic ELEMENTAL procedure 'elem03' may not be passed as an actual argument
    call callme(elem03) ! C1533
    !ERROR: Non-intrinsic ELEMENTAL procedure 'elem04' may not be passed as an actual argument
    call callme(elem04) ! C1533
   contains
    elemental real function elem04(x)
      real, value :: x
    end function
  end subroutine
end module

module m02
  type :: t
    integer, pointer :: ptr
  end type
  type(t) :: coarray[*]
 contains
  subroutine callee(x)
    type(t), intent(in) :: x
  end subroutine
  subroutine test
    !ERROR: Coindexed object 'coarray' with POINTER ultimate component '%ptr' cannot be associated with dummy argument 'x='
    call callee(coarray[1]) ! C1537
  end subroutine
end module

program p03
  logical :: l
  call s1(index)
  l = index .eq. 0  ! index is an object entity, not an intrinsic
  call s2(sin)
  !ERROR: Actual argument associated with procedure dummy argument 'p=' is not a procedure
  call s3(cos)
contains
  subroutine s2(x)
    real :: x
  end
  subroutine s3(p)
    procedure(real) :: p
  end
end

program p04
  implicit none
  !ERROR: No explicit type declared for 'index'
  call s1(index)
end