1! { dg-do run { target fd_truncate } }
2! { dg-options "-fmax-subrecord-length=16" }
3! Test Intel record markers with 16-byte subrecord sizes.
4! PR 32770:  Use explicit kinds for all integers and constants,
5! to avoid problems with -fdefault-integer-8 and -fdefault-real-8
6program main
7  implicit none
8  integer(kind=4), dimension(20) :: n
9  integer(kind=4), dimension(30) :: m
10  integer(kind=4) :: i
11  real(kind=4) :: r
12  integer(kind=4) :: k
13  ! Maximum subrecord length is 16 here, or the test will fail.
14  open (10, file="f10.dat", &
15       form="unformatted", access="sequential")
16  n = (/ (i**2, i=1, 20) /)
17  write (10) n
18  close (10)
19  ! Read back the file, including record markers.
20  open (10, file="f10.dat", form="unformatted", access="stream")
21  read (10) m
22  if (any(m .ne. (/ -16, 1, 4, 9, 16, 16, -16, 25, 36, 49, 64, &
23       -16, -16, 81, 100, 121, 144, -16, -16, 169, 196, 225, &
24       256, -16, 16, 289, 324, 361, 400, -16 /))) call abort
25  close (10)
26  open (10, file="f10.dat", form="unformatted", &
27       access="sequential")
28  m = 42
29  read (10) m(1:5)
30  if (any(m(1:5) .ne. (/ 1, 4, 9, 16, 25 /))) call abort
31  if (any(m(6:30) .ne. 42)) call abort
32  backspace 10
33  n = 0
34  read (10) n(1:5)
35  if (any(n(1:5) .ne. (/ 1, 4, 9, 16, 25 /))) call abort
36  if (any(n(6:20) .ne. 0)) call abort
37  ! Append to the end of the file
38  write (10) 3.14_4
39  ! Test multiple backspace statements
40  backspace 10
41  backspace 10
42  read (10) k
43  if (k .ne. 1) call abort
44  read (10) r
45  if (abs(r-3.14_4) .gt. 1e-7) call abort
46  close (10, status="delete")
47end program main
48