34 lines
818 B
Fortran
34 lines
818 B
Fortran
! { 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
|
|
|