gcc/testsuite/gfortran.dg/auto_char_len_3.f90

   1 ! { dg-do run }
   2 ! Test the fix for PR26257, in which the implicit reference to
   3 ! chararray in the main program call of chararray2string would
   4 ! cause a segfault in gfc_build_addr_expr.
   5 !
   6 ! Based on the reduced testcase in the PR.
   7 module chtest
   8 contains
   9   function chararray2string(chararray) result(text)
  10     character(len=1), dimension(:) :: chararray    ! input
  11     character(len=size(chararray, 1)) :: text      ! output
  12     do i = 1,size(chararray,1)
  13       text(i:i) = chararray (i)
  14     end do
  15   end function chararray2string
  16 end module chtest
  17 program TestStringTools
  18   use chtest
  19   character(len=52)               :: txt
  20   character(len=1), dimension(52) :: chararr = &
  21         (/(char(i+64),char(i+96), i = 1,26)/)
  22   txt = chararray2string(chararr)
  23   if (txt .ne. "AaBbCcDdEeFfGgHhIiJjKkLlMmNnOoPpQqRrSsTtUuVvWwXxYyZz") &
  24         STOP 1
  25 end program TestStringTools