flutter convert datetime in day of month

To convert a datetime object to the day of the month in C++, you can use the tm structure from the <ctime> header and the strftime function. Here are the steps to achieve this:

1. Include the necessary header files:

#include <iostream>
#include <ctime>

1. Get the current datetime using the time function and store it in a time_t variable:

time_t now = time(0);

1. Create a tm structure and use the localtime function to convert the current datetime to a local time:

tm* localTime = localtime(&now);

1. Extract the day of the month from the tm structure using the tm_mday member:

int day = localTime->tm_mday;

1. Print the day of the month:

std::cout << "Day of the month: " << day << std::endl;

Here's the complete code:

#include <iostream>
#include <ctime>

int main() {
    time_t now = time(0);
    tm* localTime = localtime(&now);
    int day = localTime->tm_mday;
    std::cout << "Day of the month: " << day << std::endl;
    return 0;
}

This code will output the current day of the month.