overflow
int socketstreambuf::overflow(int c)
int builtinbuf::overflow(int ch) { return _IO_OVERFLOW (this, ch); }
int edit_streambuf::overflow(int ch)
int filebuf::overflow(int c)
int indirectbuf::overflow(int c /* = EOF */)
int stdiobuf::overflow(int c /* = EOF*/)
int streambuf::overflow(int /* = EOF */)
int strstreambuf::overflow(int c /* = EOF */)