operator std::basic_ostream<CharT>& () { return null_stream(); }
inline static null_stream exec(int lineloglevel,const char* file,const char* function, int line, bool do_start = true) { return null_stream(); }
inline null_stream operator<<(const char* a) { return null_stream(); }
inline null_stream operator<<(std::ostream& (*f)(std::ostream&)) { return null_stream(); }
inline null_stream operator<<(T t) { return null_stream(); }