2008-01-03 Thomas Koenig <tkoenig@gcc.gnu.org>

2008-01-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/34565
	* io/io.h:  Adjust protoypes for open_internal(),
	next_array_record() and init_loop_spec().
	* io/list_read.c (next_char):  Use argument "finished"
	of next_array_record to check for end on internal file.
	* io/unit.c:  Calculate the offset for an array
	internal file and supply this informatin to open_internal().
	* io/unix.c (open_internal):  Set the offset for the internal
	file on open.
	* io/transfer.c (init_loop_spec):  Calculate the starting
	record in case of negative strides.  Return size of 0 for
	an empty array.
	(next_array_record):  Use an extra flag to signal that the
	array is finished.
	(next_record_r):  Use the new flag to next_array_record().
	(next_record_w):  Likewise.

2008-01-03  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR libfortran/34565
	* gfortran.dg/internal_readwrite_1.f90:  New test.
	* gfortran.dg/internal_readwrite_2.f90:  New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@131305 138bc75d-0d04-0410-961f-82ee72b054a4