Question: Is there any difference between following declarations? 1 : extern int fun(); 2 : int fun(); (1)Both are identical (2)No difference, except extern int fun();

Is there any difference between following declarations?

1 :extern int fun();
2 :int fun();


(1)Both are identical

(2)No difference, except extern int fun(); is probably in another file

(3)int fun(); is override with extern int fun();

(4)None of these

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