Pass a template method as an argument

Question

Could some one help me how to implement this code?

I need to pass a function to another function:

std::cout << process_time(Model::method1) <<         


        

Answer 1

This is the closest to your code that compiles:

#include 
#include 

struct Model {
  template 
  double method1(std::vector &v) {
    double t = 0;
    //...
    return t;
  }
};

template 
double process_time(F algorithm) {
    Model model;
    double time = 0;
    bool stop_criteria = false;
    do
    { 
        std::vector arg1;
        // ...
        time += (model.*algorithm)(arg1);
    } while (!stop_criteria);
    return time;
}

int main() {
  std::cout << process_time(&Model::method1) << std::endl;
}