Functions: Difference between revisions

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This example is on functions.  With Functions you  need to state the return type of the function.  Either int or void.  Int is value used for returning something to a call, mainly used for returning integers such as the add function in the following program.  Void is used for functions that dont return a value or you dont want to return a value.  You must use int or void in every function you make.  Take a look at the following program:
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#include <stdio.h>
#include <stdio.h>