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! { dg-do run }

! Tests the fix for PR42104 in which the call to the procedure pointer

! component caused an ICE because the "always_implicit flag was not used

! to force the passing of a descriptor for the array argument.

!

! Contributed by Martien Hulsen 

!

module poisson_functions_m

  implicit none

contains

  function func ( nr, x )

    integer, intent(in) :: nr

    real, intent(in), dimension(:) :: x

    real :: func

    real :: pi

    pi = 4 * atan(1.)

    select case(nr)

      case(1)

        func = 0

      case(2)

        func = 1

      case(3)

        func = 1 + cos(pi*x(1))*cos(pi*x(2))

      case default

        write(*,'(/a,i0/)') 'Error func: wrong function number: ', nr

        stop

    end select

  end function func

end module poisson_functions_m

module element_defs_m

  implicit none

  abstract interface

    function dummyfunc ( nr, x )

      integer, intent(in) :: nr

      real, intent(in), dimension(:) :: x

      real :: dummyfunc

    end function dummyfunc

  end interface

  type function_p

    procedure(dummyfunc), nopass, pointer :: p => null()

  end type function_p

end module element_defs_m

program t

use poisson_functions_m

use element_defs_m

procedure(dummyfunc), pointer :: p => null()

type(function_p) :: funcp

p => func

funcp%p => func

print *, func(nr=3,x=(/0.1,0.1/))

print *, p(nr=3,x=(/0.1,0.1/))

print *, funcp%p(nr=3,x=(/0.1,0.1/))

end program t

! { dg-final { cleanup-modules "poisson_functions_m element_defs_m" } }