Question

Basically what I am trying to achieve is to create a local (and private) instance of the class deltaKinematics in the class geneticAlgorithm

In the geneticAlgorithm.h file I have:

class DeltaKinematics; //class is defined in separate linked files

class GeneticAlgorithm {
  //private  
    DeltaKinematics deltaRobot;

public:

    GeneticAlgorithm(); //constructor

};

This is all fine, but when I go to declare the GeneticAlgorithm constructor, I can’t work out how to construct the instance of DeltaKinematics

This is the geneticAlgorithm.cpp constructor:

GeneticAlgorithm::GeneticAlgorithm(){ //The error given on this line is "constructor for 'GeneticAlgorithm' must explicitly initialize the member 'deltaRobot' which does not have a default constructor"

    DeltaKinematics deltaRobot(100); //this clearly isn't doing the trick

    cout << "Genetic Algorithmic search class initiated \n";
}

How do I go about initializing that local instance?

Answer 1

Member initializer list:

GeneticAlgorithm::GeneticAlgorithm() : deltaRobot(100) {
}