Pointers

Question

myFunc1(UnicodeString * p_ucs)
{
*p_ucs += "Its me here";
}

myFunc2(Unicode &p_ucs)
{
p_ucs += "Im here again";
}

int main()
{
UnicodeString ucs;
ucs = "Hello world";

myFunc1(&ucs);
myFunc2(ucs);

}

These 2 functions (myFunc1 & myFunc2) will "do the same thing" in a sense that the will actually go and alter (by concatenating) the value of p_ucs.

My question is where would one use one over the other (* or &) ???? What exactly does each of these mean (* and &) ???

Answer 1

You can't do arithmetic on references and can't get their memory address. Also you can't reassign a value to a reference that's been assigned.