C++: std::cout and Serial Port relation

Hi,

I'm using the Keil uVision IDE with the MCBSTM32E develoment board trying to program in C++.

To send data to a stream just use 'std::cout << "some text";'.

But how do I associate or connect or make the USART1 in the uC on the development board act as the standard stream input/output?

Thanks in advance,