Subversion Repositories openrisc

! { dg-do run }

!

! PR fortran/43551

!

! Writes a 672000 byte file with buffering. The writing failed because

! of a missing lseek.

implicit none

integer, parameter :: size = 2800 ! << needs to be large enough

real(8) :: vec1(size,30), dummy(size)

integer i

CALL RANDOM_NUMBER(vec1)

open(99, file='test.dat', form='unformatted', access='direct', recl=size*8)

do i = 1, 10

  write(99,rec=i) vec1(:,i)

  write(99,rec=i+10) vec1(:,i+10)

  write(99,rec=i+20) vec1(:,i+20) ! << rec = 30 was written to rec = 21

end do

do i = 1, 10

  read(99,rec=i) dummy

  if (any (dummy /= vec1(:,i))) call abort()

  read(99,rec=i+10) dummy

  if (any (dummy /= vec1(:,i+10))) call abort()

  read(99,rec=i+20) dummy

  if (any (dummy /= vec1(:,i+20))) call abort() ! << aborted here for rec = 21

end do

close(99, status='delete')

end