Diff. between pointers and references.

Could any one explain me the difference beetween pass by pointer and pass by referenece. Is there any?

diff between

void f(int& r) {

void f(int* p) {

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5 points? Bah....

When you pass like int& r you are passing the address of that variable, not the value.

When you pass like int* p you are passing the value of that variable. That is just like int p.

The time to use int* p is when you have a variable that is the address of another variable (as in it was passed via the int& r) and you need to pass it as the value of that variable, not the address.

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