iterator_test.cpp (take3 OK!)

iterator_test.cpp

// g++ -std=c++11 iterator_test.cpp

#include <iostream>
#include <vector>
#include <algorithm>

class my_vector {
public:
    std::vector<int> m_vec;
    my_vector(int len, int value): m_vec(len, value) { ; }
    std::vector<int>::const_iterator begin() const { return m_vec.begin(); }
    std::vector<int>::const_iterator end() const { return m_vec.end(); }
    std::vector<int>::iterator begin() { return m_vec.begin(); }
    std::vector<int>::iterator end() { return m_vec.end(); }
};

int main(void) {
    const my_vector v1(10, 255);
    my_vector v2(10, 0);
    std::transform(v1.begin(), v1.end(), v2.begin(),
                   [](float val) { return val/10; });
    for (int n : v2.m_vec) {
        std::cout << n << ' ';
    }
    return 0;
}