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