gcc/testsuite/gfortran.dg/read_eof_1.f90

   1 ! { dg-do run { target fd_truncate } }
   2 ! PR25697 Check that reading from a file that is at end-of-file does not
   3 ! segfault or give error.  Test case derived from example in PR from Dale Ranta.
   4 ! Contributed by Jerry DeLisle  <jvdelisle@gcc.gnu.org>
   5        integer data(9)
   6        do i = 1,9
   7          data(i)=-3
   8        enddo
   9        open(unit=11,status='scratch',form='unformatted')
  10        write(11)data
  11        read(11,end=        1000 )data
  12        STOP 1
  13  1000  continue
  14        backspace 11
  15        backspace 11
  16        write(11)data
  17        rewind 11
  18        data = 0
  19        read(11,end=        1001 )data
  20  1001  continue
  21        read(11,end=        1002 )data
  22        STOP 1
  23  1002  continue
  24        if (.not. all(data == -3)) STOP 2
  25        close(11)
  26        end
  27