成员的完整列表，这些成员属于 elc::defs::stream_n::text_istream_t< char_T >,包括所有继承而来的类成员

char_type typedef	elc::defs::stream_n::text_stream_t< char_T >
close()=0	elc::defs::stream_n::base_stream_t	pure virtual
data_type typedef	elc::defs::stream_n::text_stream_t< char_T >
flush()=0	elc::defs::stream_n::base_stream_t	pure virtual
get()	elc::defs::stream_n::text_istream_t< char_T >	inlinevirtual
is_end()=0	elc::defs::stream_n::base_not_unreadable_istream_t	pure virtual
operator bool()	elc::defs::stream_n::base_not_unreadable_istream_t	inlineexplicitvirtual
peek()	elc::defs::stream_n::text_istream_t< char_T >	inlinevirtual
read(char_T *buf, size_t size)=0	elc::defs::stream_n::text_not_unreadable_istream_t< char_T >	pure virtual
seek(seek_type, int_t)=0	elc::defs::stream_n::base_stream_t	pure virtual
seek_to(int_t)=0	elc::defs::stream_n::base_stream_t	pure virtual
sync()=0	elc::defs::stream_n::base_stream_t	pure virtual
tell()	elc::defs::stream_n::base_stream_t	inlinevirtual
unread(const char_T *buf, size_t size)=0	elc::defs::stream_n::text_istream_t< char_T >	pure virtual
waitting_for_data()=0	elc::defs::stream_n::base_not_unreadable_istream_t	pure virtual
~base_stream_t()=default	elc::defs::stream_n::base_stream_t	virtual