[sv-ec] label after endfunction for out-of-scope function definition

Please see below example which endfunction label is correct: f or C::f ???
 
 
class C;
        extern function int f;
endclass
 
function C::f();
        int i;
        return i;
 
 
endfunction : f //this one is ok?
    vs.
endfunction : C::f //or this one is ok?

 
DANiel

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