void main() @safe

{

    import std.stdio: File, writeln;

    auto hosts = File("/etc/hosts");

    {

        auto hosts_copy = hosts;

        hosts_copy.tupleof[0].refs = 1; /* uh-oh */

    }

    auto self = File(__FILE__);

    writeln(hosts.rawRead(new char[1000]));

        /* Reads from __FILE__ instead of /etc/hosts. */

}