Does a stream flush itself when destroyed?

[MrPickle]

Does a stream flush itself when it is destroyed? If so, is it best just to let the stream flush itself and only flush it when you want it's buffer synchronizing?

[weaknessforcats]

Streams are flushed in the destructor of the stream object.

You can flush a stream yourself,if needed, during runtime.

BTW: a flush applies only to an output stream.