re PR fortran/44953 (FAIL: gfortran.dg/char4_iunit_1.f03 * execution test)

re PR fortran/44953 (FAIL: gfortran.dg/char4_iunit_1.f03  *  execution test)

2010-07-19  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/44953
	* io/unix.c (mem_alloc_w4): Return gfc_char4_t instead of char type
	pointer. (mem_write4): Remove cast to gfc_char4_t.
	* io/transfer.c (write_block): Use a gfc_char4_t pointer.
	(memset4): New helper function. (next_record_w): Use new helper
	function rather than sset for internal units.  Don't attempt to pad
	with spaces if it is not needed.
	* io/unix.h: Update prototype for mem_alloc_w4.
	* io/write.c (memset4): Use gfc_char4_t pointer and chracter type.
	Don't use multiply by 4 to compute offset. (memcpy4): Likewise.
	(write_default_char4): Use a gfc_char4_t pointer and update memset4
	and memcpy calls. (write_a): Likewise. (write_l): Likewise.
	(write_boz): Likewise. (write_decimal): Likewise. (write_x): Likewise.
	(write_char): Add support for character(kind=4) internal units that
	was previously missed. (write_integer): Use a gfc_char4_t pointer and
	update memset4 and memcpy calls. (write_character): Likewise.
	(write_separator): Add support for character(kind=4) internal units
	that was previously missed.
	* write_float.def (output_float): Use a gfc_char4_t pointer and
	update memset4 and memcpy calls. (write_infnan): Likewise.
	(output_float_FMT_G_): Likewise.

From-SVN: r162304