coolbeans.cpp #1

#include <iostream>
#include <vector>

using namespace std;

class Bean
{
private:
    bool m_cool;

public:
    Bean(bool cool) :
        m_cool(cool)
    {
    }

    bool isCool() const
    {
        return m_cool;
    }

    void beCool(bool cool)
    {
        m_cool = cool;
    }
};

void we_cool(vector<Bean> &beans)
{
    for (auto &bean : beans) {
        if (!bean.isCool()) {
            cout << "Not cool." << endl;
            bean.beCool(true);
        }
    }
    cout << "We cool." << endl;
}

int main(int argc, char *argv[])
{
    vector<Bean> beans = {Bean(true), Bean(false)};
    we_cool(beans);
    return 0;
}