如何在C++中从std::chrono::year_month_day中获取工作日数

bool isWeekday(const std::chrono::year_month_day& date) {
    auto weekday = std::chrono::weekday(date);
    return weekday != std::chrono::Saturday && weekday != std::chrono::Sunday;
}

int countWorkdays(const std::chrono::year_month_day& start, const std::chrono::year_month_day& end) {
    int workdayCount = 0;
    auto currentDate = start;
    while (currentDate <= end) {
        if (isWeekday(currentDate)) {
            workdayCount++;
        }
        currentDate += std::chrono::days(1);
    }
    return workdayCount;
}

#include <iostream>
#include <chrono>

int main() {
    std::chrono::year_month_day start{std::chrono::year{2022}, std::chrono::month{1}, std::chrono::day{1}};
    std::chrono::year_month_day end{std::chrono::year{2022}, std::chrono::month{12}, std::chrono::day{31}};
    
    int workdayCount = countWorkdays(start, end);
    
    std::cout << "工作日数：" << workdayCount << std::endl;
    
    return 0;
}

工作日数：261