Question

boost pdate is immutable, so how can I use it in a loop? I need to make comparison with last-dealt-with date:

    date last(neg_infin);
    for (int i = 0; i < tasks.size(); i++) {
            if (tasks[i]->getTime().date() > last) {
                cout << ":::" << tasks[i]->getTime().date() << ":::" << endl;
            }
            cout << "[" << i << "]" << '\t';
            tasks[i]->print();
            // i need to change the last date here
            cout << endl;
        }

ie. if the date part of current time is later than the previous, print the date, otherwise print only the time

Answer 1

Why do you need an explicit last element? Wont this work as well?

if (i == 0 || tasks[i]->getTime().date() > tasks[i-1]->getTime.date()) {