2002-04-28  Benjamin Kosnik  <bkoz@redhat.com>

        PR libstdc++/5280
        * config/io/basic_file_stdio.h (__basic_file::sys_getc): Return int.
        (__basic_file::sys_ungetc): Take int.
        * config/io/basic_file_stdio.cc (__basic_file::sys_ungetc): Same.
        * include/bits/fstream.tcc (basic_filebuf::_M_underflow_common):
        Use sys_getc for unbuffered input.
        * testsuite/27_io/narrow_stream_objects.cc (test06): New.

        * src/ios.cc (_M_grow_words): Adjust error checking.
        * testsuite/27_io/ios_base_storage.cc: Same.

From-SVN: r52879