phobos: What type to use instead of File when doing I/O on streams?

[J.Frank via Digitalmars-d-learn]

My question is now:
How can I make this work without using deprecated stuff?


import std.cstream;

void foo(InputStream in_stream, OutputStream out_stream)
{
//	in_stream.seek(3); // compile error - good :)

	char[] line;
	while ((line = in_stream.readLine()) !is null)
		out_stream.writeLine(line);
}

void main(string[] args)
{
	foo(din, dout);
}