CR-LF (the DOS convenction for text files) as record separators don't work well for formatted input, either:
$ cat dosfile-2.f program main write (12,'(2A)') ' 1',achar(13) write (12,'(2A)') ' 2',achar(13) rewind(12) read(12,'(I4)') n1 print *,n1 read(12,'(I5)') n2 print *,n2 end $ gfortran dosfile-2.f $ ./a.out 1 At line 7 of file dosfile-2.f Fortran runtime error: Bad value during integer read $ gfortran -v ; gfortran -dumpmachine Using built-in specs. Configured with: ../gcc/configure --prefix=/home/ig25 --enable-languages=c,f95 Thread model: posix gcc version 4.0.0 20050127 (experimental) i686-pc-linux-gnu $ od -c fort.12 0000000 1 \r \n 2 \r \n 0000014 -- Summary: DOS files don't work for formatted input if line length is exceeded Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libfortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: Thomas dot Koenig at online dot de CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19679