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! { dg-do run }

! Test the fix for PR26257, in which the implicit reference to

! chararray in the main program call of chararray2string would

! cause a segfault in gfc_build_addr_expr.

!

! Based on the reduced testcase in the PR.

module chtest

contains

  function chararray2string(chararray) result(text)

    character(len=1), dimension(:) :: chararray    ! input

    character(len=size(chararray, 1)) :: text      ! output

    do i = 1,size(chararray,1)

      text(i:i) = chararray (i)

    end do

  end function chararray2string

end module chtest

program TestStringTools

  use chtest

  character(len=52)               :: txt

  character(len=1), dimension(52) :: chararr = &

        (/(char(i+64),char(i+96), i = 1,26)/)

  txt = chararray2string(chararr)

  if (txt .ne. "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz") &

        call abort ()

end program TestStringTools

! { dg-final { cleanup-modules "chtest" } }