operator+

[Daok]

I am making for fun a String class and I want to be able to do something like :

myString a,b,c;
a = "a";
b = "b";
c = a + b;

But I cannot find how to use the + without changing the value of a.

Anyone?

[Zaei]

myString operator + (const myString& lhs, const myString& rhs)
{
    myString ret;
    // do your stuff here...
    return ret;
}

That should get you started =).

Z.

[Daok]

I do not need to return *this to be able to have multiple +?

Example a = b + c + d + e;

[Zaei]

Take a look at my code.

What happens is enssentially this:

in operator +:
  ret = lhs + rhs;
  return ret;
ret = b + c;
ret = ret + d;
ret = ret + e;
a = ret;

You will only return a *this when using an <operator>= type operator, which is where you would apply the changes to the object, and return *this as a reference return value.

Z.

[Daok]

Interesting
Thx you Mister Z.