gcc/testsuite/gfortran.dg/direct_io_5.f90

   1 ! { dg-do run }
   2 ! PR27757 Problems with direct access I/O
   3 ! This test checks a series of random writes followed by random reads.
   4 ! Contributed by Jerry DeLisle <jvdelisle@gcc.gnu.org>
   5
   6 program testdirect
   7   implicit none
   8   integer, dimension(100) :: a
   9   integer :: i,j,k,ier
  10   real    :: x
  11   data a / 13, 9, 34, 41, 25, 98, 6, 12, 11, 44, 79, 3,&
  12   &    64, 61, 77, 57, 59, 2, 92, 38, 71, 64, 31, 60, 28, 90, 26,&
  13   &    97, 47, 26, 48, 96, 95, 82, 100, 90, 45, 71, 71, 67, 72,&
  14   &    76, 94, 49, 85, 45, 100, 22, 96, 48, 13, 23, 40, 14, 76, 99,&
  15   &    96, 90, 65,  2, 8, 60, 96, 19, 45, 1, 100, 48, 91, 20, 92,&
  16   &    72, 81, 59, 24, 37, 43, 21, 54, 68, 31, 19, 79, 63, 41,&
  17   &    42, 12, 10, 62, 43, 9, 30, 9, 54, 35, 4, 5, 55, 3, 94 /
  18
  19   open(unit=15,file="testdirectio",access="direct",form="unformatted",recl=89)
  20   do i=1,100
  21     k = a(i)
  22     write(unit=15, rec=k) k
  23   enddo
  24   do j=1,100
  25     read(unit=15, rec=a(j), iostat=ier) k
  26     if (ier.ne.0) then
  27       STOP 1
  28     else
  29       if (a(j) /= k) STOP 2
  30     endif
  31   enddo
  32   close(unit=15, status="delete")
  33 end program testdirect