Re: String from C to C++

In article <2427530.qIh2yKrBSW@[EMAIL PROTECTED]
>, bart@[EMAIL PROTECTED]
 
says...

[ ... ] 

> operator=() should do two things:
> 1. Clean up the old contents of the object
> 2. create a copy of the contents of the other object and store that in
> the 'this' object.
> 
> The popular idiom to write operator=() is to use the copy-swap idiom:
> In pseudo-code the idiom goes like this:
>   FooBar::operator=(const FooBar& other)
>   {
>     FooBar temp(other) //create a new object that is a copy of 'other'
>     swap(*this, temp) //swap the contents of this and temp
>   } // as temp goes out of scope, let it destroy the old content of
> this.

The point of passing a reference to a const string is to avoid creating 
a copy -- but in this case, a copy is absolutely necessary anyway:

FooBar::operator=(FooBar temp) { 
	swap(*this, temp);
}

-- 
    Later,
    Jerry.

The universe is a figment of its own imagination.