If i have the following methods:
void addfive(int num)
num = num + 5;
and when i use it in the main routine like this:
int a = 15;
What will happen is that 5 will be added to a copy of the (a) variable.
but if the method parameter is a pointer `int* num` instead of the `int num
5` will be added to the (a) variable and no copy is created.
If I used the pointer in my method, will this use less memory that the first method, and will this work in non_void methods?
Is there any particular reason why you don't use a reference (int &num) [assuming C++]?