What is the difference between a void function and a non$-$void function in C$++?$

A void function returns a value, while a non$-$void function does not

A void function does not return a value, while a non$-$void function does.

A void function cannot have any arguments, while a non$-$void function can

A void function can only be called from withing the same file, while a non$-$void function can be called from any file.