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POCan I use method pointers in c++ alike delegates in c#?
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copied!<p>I would like to make a class' (let's call it X for convenience) method be able to use a pointer to its own methods in cases where I would be able to extract code that differs only by the method called.</p> <p>for example, having a few blocks like:</p> <pre><code>a(); b(); c(); MehtodCall(someResultOfabc); d(); e(); </code></pre> <p>I would like to extract a method that would just use different methods passed as a pointer:</p> <p>so I would like something alike:</p> <pre><code>void X::ExtractedMethod( void(X::*MethodCallPointer)(TypeOfABCResult) ){ a(); b(); c(); this->*MethodCallPointer(someResultOfabc); d(); e(); } </code></pre> <p>and use this very function in such manner:</p> <pre><code>void X::DoSomethingA(){ ExtractedMethod(&X::ADoer); } void X::DoSomethingB(){ ExtractedMethod(&X::BDoer); } </code></pre> <p>and os on...</p> <p>Unfortunately I am stuck here, because I get a compile error, that the method pointer doesn't evaluate to a method call which takes one argument.</p> <p>I start to wander if the reason would be that X is yet an incomplete type in this declaration ?</p> <p>I would be happy if someone would help me by telling how to do this, or why isn't that possible.</p> <p>What I really, really DON'T want is to get some workarounds, like using std::function in the signature and a lambda, or using a pointer to a static methods that takes X* and invoke specific methods that I need, nor making switch statements and a flag, nor instead of that switch statement use an interface, implement the strategy patern and use static instances of strategies as a parameter ;) those aren't all workaround for this case, but I stil don't want to read about other workarounds. The sole thing that interests me is "is that possible, and how to do it" in this very way.</p>

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