Objects of the stdiostream class can be constructed and destructed.
public:~stdiostream()
This is supported on

Destructs a stdiostream object.
public:stdiostream(FILE*)
This is supported on

Creates a stdiostream object that is attached to the FILE pointed to by the argument.
public:stdiobuf* rdbuf()
This is supported on

Returns a pointer to the stdiobuf object that is attached to the stdiostream object.