re PR libstdc++/9371 (Bad exception handling in i/ostream::operator>>/<<(streambuf*))

re PR libstdc++/9371 (Bad exception handling in i/ostream::operator>>/<<(streambuf*))

2003-12-03  Benjamin Kosnik  <bkoz@redhat.com>

	* include/bits/basic_ios.h (basic_ios::setstate): Revert.
	* include/bits/istream.tcc: Only call setstate if __err != goodbit.
	* include/bits/ostream.tcc: Same.
	* testsuite/27_io/basic_ios/exceptions/char/2.cc: New.

2003-12-03  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/9371
	PR libstdc++/9546
	PR libstdc++/10093
	PR libstdc++/10095
	* include/bits/basic_ios.h (basic_ios::setstate): Elide if goodbit.
	(basic_ios::_M_setstate): Consolidate common error handling code.
	* include/bits/basic_ios.tcc: Tweak.
	* include/bits/fstream.tcc: Tweak.
	* include/bits/istream.tcc: Use _M_setstate for common exception
	handling. Move setstate calls after catch.
	(basic_istream::tellg): Check for exceptions thrown by streambuf
	virtual functions.
	(basic_istream::seekg): Same.
	* include/bits/ostream.tcc: Same, but for ostream.
	(basic_ostream::flush): Check for exceptions thrown by streambuf
	virtual functions.
	(basic_istream::tellp): Same.
	(basic_istream::seekp): Same.
	* include/bits/locale_facets.tcc: Tweak.
	* include/bits/streambuf.tcc: Tweak.
	(__copy_streambufs): Propagate exceptions.

From-SVN: r74265