Help with Coroutines

[zotan]

Hello friends,

How would be the correct translation of this code to C++?

public IEnumerable<int> Sequence(int min, int max) {
		for (int x = min; x <= max; x++) {
			yield return x;
		}
	}

Thank you!

[tpb]

C++ does not have coroutines.
You should just rewrite the code to not use "yield".
If you need help with that, post the entire code.

EDIT: As a simple emulation, you could do this:

#include <iostream>

class Sequence {
    int m_first, m_last, m_inc;
    bool m_done;
public:
    Sequence(int first, int last){
        set(first, last);
    }

    void set(int first, int last) {
        m_first = first;
        m_last = last;
        m_inc = first > last ? -1 : 1;
        m_done = false;
    }

    bool yield(int &ret) {
        if (m_done)
            return false;
        if (m_first == m_last)
            m_done = true;
        ret = m_first;
        m_first += m_inc;
        return true;
    }
};

int main() {
    Sequence seq(10, 20);
    for (int n; seq.yield(n); )
        std::cout << n << ' ';
    std::cout << '\n';

    seq.set(20, 10);
    for (int n; seq.yield(n); )
        std::cout << n << ' ';
    std::cout << '\n';
}

[zotan]

Thanks for the reply tpb!