Pass by reference

How to force a class to pass by reference like how java does
(using C++)??

Thanks

This article should make it clear. Feel free to ask if still in doubt.

Quote:

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Originally Posted by jpn

This article should make it clear. Feel free to ask if still in doubt.

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Hello jpn,
You didnt get me.

Let me explain...
-->in normal C++

Code:

---

class A
{
  .....
};
void func( A &a )  //Is passed by reference
{
 
}
int main()
{
   A a;
   func( a );
   return 0;
}

---

-->What I want???

Code:

---

class A
{
  .....
};
void func( A a )  //should be forced to pass by reference always. This happens in java 
{
 
}
int main()
{
   A a;
   func( a );
   return 0;
}

---

As far as I know there is no other way around. "A &a" is how you do it in C++.

Quote:

---

Originally Posted by jpn

As far as I know there is no other way around. "A &a" is how you do it in C++.

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That is fine, but I need to make my class smart enough to provide such functionality. Is there some way I can implement my class like that???

Thanks

What do you mean?
You just pass the parameter by reference...

Quote:

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Originally Posted by vermarajeev

I need to make my class smart enough to provide such functionality.

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This is counter intuitive in C++ and might lead to mistakes and confusion, but if you really want it, just implement data sharing class without copy-on-write mechanism (AFAIR it's called a single state class).