what is the difference between a reference and object of a class?

Hi all!

(1):Can u say what are the differences between a reference and a object?

(2): see the following ex:

class Example
{
......;
......;
};
int main()
{
Example e1;
Example e2=new Example();
.......;
}

2(a):I think e1 is reference to Example and e2 is object to Example... Am i right.... ?
2(b):What is the difference between e1 and e2?

Thanks in advance:
regards:
raghunadhs.v

e1 is assigned memory before the execution of the program. e2 is assigned memory dynamically.

A reference, is when you pass the address of a variable straight into another, instead of the data being copied across (you could say, its like an alias for another variable). You accomplish this using the ampersand (&) operator. For example, this would output the value "6":

C++ Code:

void AddToVariable(int &);
 
int main()
{
    int blah = 5;
    AddToVariable(blah);
    cout << blah;
}
 
void AddToVariable(int &var)
{
    ++var;
}

chem

Thanks chemicalNova!
Your explenation is pretty well, i have come to an understand to distinguish an object and a reference.
thanks alot,
regards:
raghunadhs.

Quote:

---

Originally Posted by chemicalNova

e1 is assigned memory before the execution of the program. e2 is assigned memory dynamically.

A reference, is when you pass the address of a variable straight into another, instead of the data being copied across (you could say, its like an alias for another variable). You accomplish this using the ampersand (&) operator. For example, this would output the value "6":

C++ Code:

void AddToVariable(int &);
 
int main()
{
    int blah = 5;
    AddToVariable(blah);
    cout << blah;
}
 
void AddToVariable(int &var)
{
    ++var;
}

chem

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