1! { dg-do run }
2! Test the error message when an unformatted file has become
3! corrupted.
4program main
5  implicit none
6  integer(kind=4) :: i1, i2
7  integer :: ios
8  character(len=50) :: msg
9
10  ! Write out a truncated unformatted sequential file by
11  ! using unformatted stream.
12
13  open (10, form="unformatted", access="stream", file="foo_unf_read_corrupted_1.dat", &
14  status="unknown")
15  write (10) 16_4, 1_4
16  close (10, status="keep")
17
18  ! Try to read
19  open (10, file="foo_unf_read_corrupted_1.dat", form="unformatted", access="sequential")
20  i1 = 0
21  i2 = 0
22  read (10, iostat=ios, iomsg=msg) i1, i2
23  if (ios == 0) STOP 1
24  if (i1 /= 1) STOP 2
25  if (msg /= "Unformatted file structure has been corrupted") STOP 3
26  close (10, status="delete")
27end program main
28