gcc/testsuite/gfortran.dg/unit_1.f90

   1 ! { dg-do run }
   2 ! PR40638 Run Time Error: Unit number in I/O statement too large
   3       program main
   4       integer(kind=2) ::  lun, anum
   5       integer(kind=1) ::  looney, bin
   6       lun  = 12
   7       anum = 5
   8       looney = 42
   9       bin = 23
  10       open (lun, status='scratch')
  11       write(lun,*) anum
  12       anum = 0
  13       rewind(lun)
  14       read (lun, *) anum
  15       if (anum.ne.5) STOP 1
  16       open (looney, status='scratch')
  17       write(looney,*)bin
  18       bin = 0
  19       rewind (looney)
  20       read (looney,*)bin
  21       if (bin.ne.23) STOP 2
  22       close (lun)
  23       close (looney)
  24       end