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Declarations and Initializations - General Questions :: Discussion

4.	Is there any difference between following declarations?
	A.	No difference, except extern int fun(); is probably in another file
	B.	int fun(); is overrided with extern int fun();
	C.	Both are identical
	D.	None of above

	Answer: Option A


	Explanation:
	extern int fun(); declaration in C is to indicate the existence of a global function and it is defined externally to the current module or in another file. int fun(); declaration in C is to indicate the existence of a function inside the current module or in the same file.



	Tutorial Link:

Published by:Michael Daani

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