2002-02-07  Benjamin Kosnik  <bkoz@redhat.com>

	libstdc++/5286
	libstdc++/3860
	* include/std/std_fstream.h (filebuf::__file_type): Change to
	__basic_file<char>.
	(filebuf::_M_convert_to_external): Declare.
	* include/bits/fstream.tcc (filebuf::_M_convert_to_external): Define
	codecvt bits for wide streams.
	(filebuf::_M_really_overflow): Use it.
	(filebuf::underflow): Use codecvt.
	* config/locale/codecvt_specializations_ieee_1003.1-200x.h:
	(codecvt<__enc_traits>::do_out): Deal with partial.
	(codecvt<__enc_traits>::do_encoding): Return something useful.
	* src/codecvt.cc (codecvt<wchar_t>::do_encoding): Return sizeof
	wchar_t.
	* testsuite/22_locale/codecvt_members_unicode_char.cc (test01):
	Change expected encoding output.
	(test02): Same.
	* testsuite/22_locale/codecvt_members_wchar_t_char.cc (test01): Same.
	(test02): Same.

From-SVN: r49601