Passing arguments is a standard method used in all programming languages.Explain the difference when you use these two (2) methods: passing an argument by value and passing data by reference.Provide an example of each type.
Passing by value actually passes a copy of an argument. Passing by reference actually passes the address of an argument.
So the differences is: 1) when passing by value an argument always remains unchanged, when by reference can be changed; 2) if an argument is class or structure, then for passing by value a copy constructor is necessary (direct or indirect); 3) If an argument is large (structure) then passing by value requires more memory.
Jun 8th, 2015
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