2000-08-09 Benjamin Kosnik <bkoz@purist.soma.redhat.com>

2000-08-09  Benjamin Kosnik  <bkoz@purist.soma.redhat.com>

	Preliminary wchar_t implementation, with trivial encodings.
	* docs/configopts.html: Add bits about canonical configure option
	checking.

	* testsuite/27_io/iostream_objects.cc: Replace this file (which
	has newly-declared-illegal mixing of wide/narrow stdstreams) with...
	* testsuite/27_io/narrow_stream_objects.cc: New file.
	* testsuite/27_io/wide_stream_objects.cc: New file.

	* bits/fstream.tcc (underflow): Temporarily hack a solution
	together that writes from the external file to the internal
	buffers. This removes codecvt from the loop, and is incorrect.
	(_M_really_overflow): Same here.

	* testsuite/21_strings/inserters_extractors.cc (test05): Tweaks.

2000-08-08  Benjamin Kosnik  <bkoz@cygnus.com>
	    Ulrich Drepper  <drepper@cygnus.com>

	* config/c_io_libio.h: Tweak.
	* config/c_io_libio_codecvt.c: New file.
	* libio/Makefile.am: Add c_codecvt.c.
	* libio/Makefile.in: Regenerate.
	* libio/genops.c (_IO_unbuffer_write): Don't call _IO_SETBUF if the
	stream is not orientated.

	* acinclude.m4: Add config/c_io_libio_codecvt.c dummy file, until
	encoding gets fleshed out.

	* bits/basic_file.h: Add specialization declarations.
	* config/c_io_libio.cc: Add specializations for pbackfail, uflow.

	* config/c_io_libio.h: Add __c_wfile_type.
	* bits/basic_file.h: Add _M_wfile.

	* config/c_io_libio.cc (__basic_file<char>): Initialize the
	streams without setting the orientation of the underlying FILE to
	either wide or narrow.
	(__basic_file<wchar_t>)): Enable tricky wchar_t io bits.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35584 138bc75d-0d04-0410-961f-82ee72b054a4