array/struct as arg in c++

Let's say you have something like:
int tmp=5;
f(tmp);
and it can be written shorter as:
f(5);
This works but what if the argument is an array or a struct?
Something like
f({1,2,3});
doesn't work. Is there an easier way than using a temporary variable?

Never mind, I am pants-on-head retarded. One second after creating this thread I realized I can use the typecast operator.