Calendar example code in C/C++

A simple calendar example code. The easiest way is to use "time" library. It simply uses std::time() and std::localtime() to compute date. Calendar example code is shown below.

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#include <ctime>


#include <iostream>





int main()


{


std::time_t temp = std::time ( 0 );


std::tm *first = std::localtime ( &temp );





first->tm_year = 2008 - 1900;


first->tm_mday = 1;


first->tm_mon = 0;





if ( std::mktime ( first ) != (std::time_t)-1 ) {


char weekday[100];





if ( std::strftime ( weekday, 100, "%A", first ) > 0 )


std::cout<<"The first day of the year is "<< weekday <<'\n';


}


}