Is the Visitor Pattern the fastest way to accomplish method parameter type identification (effectively single dispatch on a parameter, not a member's class) in C++? I might know the exact method(s) I want to invoke on elements of not-yet-know subtype, so invariably making an additional virtual method call like Is the Visitor Pattern the fastest way to accom
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在c++中，访问者模式是区分参数类型的最快方式吗?
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