c++ - function pointer point to a member function

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July 07, 2022 | Admin |

c++ - function pointer point to a member function

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I am working on an optimization algorithm, in my algorithm, I need to use a function pointer to pass the function into the optimizer

the class definition:

In the declaration of member function run(), I did as:

And I had the compiler errer:

How can I refer a member function in another member function? Thank you very much!

When taking the address of a method pointer, you need to include the name of the class. So in this case, the appropriate syntax would be:

At the same time, a non-static method pointer is not interchangeable with a regular function pointer. So you would need to declare the third argument of amoeba as:

And then you would need to call the function as this->*funk(...). If you need to bundle the identity of the object with a pointer, then you might consider making the third argument a std::function<float(float*, int)> (and then using a lambda or std::bind). However in your case that might not be necessary.

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