re PR libstdc++/10132 (filebuf destructor throws exceptions)

re PR libstdc++/10132 (filebuf destructor throws exceptions)

2003-04-25  Benjamin Kosnik  <bkoz@redhat.com>

	PR libstdc++/10132
	* include/std/std_fstream.h (basic_filebuf::is_open): Add throw()
	exception specifications.
	(basic_filebuf::close): Same.
	(basic_filebuf::_M_pback_destroy): Same.
	(basic_filebuf::_M_destroy_internal_buffer): Same.
	(basic_filebuf): Remove __res_type typedef.
	* src/fstream.cc: Same.
	* include/bits/fstream.tcc
	(basic_filebuf::_M_convert_to_external): Simplify.
	(basic_filebuf::seekoff): Use has_facet	before use_facet.
	(basic_filebuf::close): Add exception specification of throw().
	* testsuite/27_io/basic_filebuf/cons: New.
	* testsuite/27_io/basic_filebuf/cons/wchar_t: New.
	* testsuite/27_io/basic_filebuf/cons/wchar_t/10132-1.cc: New.
	* testsuite/27_io/basic_filebuf/seekoff/10132-2.cc: New.
	* testsuite/27_io/basic_filebuf/seekpos/10132-3.cc: New.

From-SVN: r66091