Passing an object's' method into a method of another object?

[JamesHelp]

Hi,

I'm wondering if its possible to do something in C++ which I'll show with the example below:

#include <iostream>
#include <string>
#include <vector>
using namespace std;



class student
{
public:
	int getAge() const;
	double getHeight() const;
	string getName() const;
};


int student::getAge() const
{
	return 38;
}

double student::getHeight() const
{
	return 5.6;
}

string student::getName() const
{
	return "James";
}

class Data
{
public:
	student getData(student object) const;
};

student Data::getData(student object) const
{
	return object;
}


int main()
{
	student james;

	Data school;

	cout << school(james.getName());

	cout << "\n" << school(james.getAge());

	cout << "\n" << school(james.getHeight());
	

}

I know this wont compile, but is it possible to do something like this? The idea is say I wanted to create a data base of students. Each student object has certain data in it like in this case an age, name and height. Then in the Data class I want to have a method that would return (or use) whichever function called from the student class that was passed to it

[seeplus]

I'm not sure what you really want, but consider:

#include <iostream>
#include <string>
using namespace std;

class student
{
public:
	student(int a, double h, string n) : age(a), height(h), name(n) {}

	int getAge() const { return age; }
	double getHeight() const { return height;}
	string getName() const { return name; }

	int age;
	double height;
	string name;
};

template<typename T>
class Data
{
public:
	T getData() const { return object; }

	Data(const T& t) : object(t) {}

	T object;
};


int main()
{
	student james {38, 5.6, "James"};
	student mat {42, 6.1, "Mathew"};

	Data<student> schoolj {james};

	cout << "\n" << schoolj.getData().getName();
	cout << "\n" << schoolj.getData().getAge();
	cout << "\n" << schoolj.getData().getHeight();

	Data<student> schoolm {mat};

	cout << "\n" << schoolm.getData().getName();
	cout << "\n" << schoolm.getData().getAge();
	cout << "\n" << schoolm.getData().getHeight();
}

If you explained what you were really trying to achieve, rather than how to do something we don't know why - we probably will be able to provide better info.

[salem c]

I would ditch the Data class and go with something like

vector<student> school;

[ne555]

> cout << school(james.getName());
¿what's that supposed to print?
¿what benefit does the `school' wrapper give you?


here's an example on how to pass a member function pointer https://stackoverflow.com/a/37500299