为什么我会收到“不存在成员函数"的消息?在VC ++调试器上评估表达式时出错? [英] Why do I get a "member function not present" error when evaluating expressions on the VC++ debugger?

问题描述

我在另一个DLL MyDll.dll 上有一个静态方法 MyClass :: myMethod().在我的代码中，我调用了此方法，它可以编译并正常运行.

I've got a static method, MyClass::myMethod() on another DLL, MyDll.dll. In my code, I call this method, and it compiles and runs fine.

但是当我在直接窗口(或监视窗口)中尝试 MyClass :: myMethod()时，我总是得到:

But when I try MyClass::myMethod() in the immediate window (or the watch window), I always get:

MyClass::myMethod()
CXX0052: Error: member function not present

那是为什么?

更新:我发现当我使用

Update: I've found out that when I use the context operator it works:

{,,MyDLL}MyClass::myMethod()

不过，我不太确定为什么需要这样做，因此我将稍等一下，看看有人是否有很好的解释.

I'm not really sure why it's needed, though, so I'm going to wait a bit to see if someone has a nice explanation.

更新2 :有人要求我提供更多信息.不幸的是，我所描述的几乎是我所拥有的.这是在第三方代码中.驻留在不同DLL上的方法是这样声明的:

Update 2: I was asked to give more information. Unfortunately, what I described is almost all I have. This is in third-party code. The method, which resides on a different DLL, is declared like this:

class MyClass
{
 public:
 // ...
 _declspec(dllimport) static const char *getDirectory(void);
}

，它是这样调用的:

MyClass::getDirectory ()

我没有消息来源.它是在VC ++ 9下以调试模式编译的.

I haven't got the source. It was compiled on Debug mode under VC++9.

推荐答案

好吧，我不确定为什么，但是调试器不够聪明，无法知道该类在另一个DLL中，因此您必须明确地告诉它通过使用上下文运算符:

Well, I'm not sure why, but the debugger isn't smart enough to know that class is in another DLL, so you have to explictly tell it by using the context operator:

{,,MyDLL}MyClass::myMethod()

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