c - Is it necessary to use 'void' in function while passing array to a function?

Question

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Answer 1

we use void before a function when that function returns nothing. So, if your function returns nothing than you can use void. If your function return int then use int before the function name. Basically whatever data type your function returns use that type infront of your function name.

By the way, you are passing character to your disp function not the whole array.