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POCreating read-only (public) class members in C++
 

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  1. POCreating read-only (public) class members in C++
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    <p>I'm coming from a background in languages like Actionscript 3 where we have a special way of defining a member variable as both an instance and a method for setting/fetching the value of a protected or private member. Let me give an example:</p> <p>Within a class, we can say something like this:</p> <pre><code>private var _myString:String; public get myString():String { return _myString; } public set myString(newValue:String):void { //Do some super secret member protection n' stuff _myString = newValue; } </code></pre> <p>And then outside of that object I can do the following:</p> <pre><code>trace(myClass.myString); //Output whatever _myString is. (note the lack of (). It's being accessed like property not a method... </code></pre> <p>And even further, I could do something like delete the "public set myString" method, so if someone tried to do this with my class:</p> <pre><code>myClass.myString = "Something"; //Try to assign - again note the lack of () </code></pre> <p>It would throw an error, letting the user know that the property is available as read-only.</p> <p>Now since I'm using C++ and it's infinitely more awesome than Actionscript 3, I'm wondering how I can mimic this type of behavior. I don't want to use a bunch of dirty <code>getVariable()</code> and <code>setVariable()</code> methods. I was hoping through some operator overloading trickery I could make the exact same thing possible here. Note I am a noob, so please address me as such. :)</p> <p><strong>Update</strong> I guess the easiest way to explain this is, I'm trying to essentially have getters and setters but invoke them through assignment rather than with the parentheses ().</p>
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    1. COIn C++, variable() and setVariable() calls are _not_ dirty. Depending upon your data types and internal class data they're actually safer than raw public variables.
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      1. USWill Bickford
 

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