Solution for Exercise 21-1

ex2101

#include <stdio.h>
#include <time.h>

int main()
{
    time_t tictoc;

    time(&tictoc);
    printf("The time is now %lu\n",tictoc);
    return(0);
}

Output

The time is now 1589835271

Notes

* The value output is valid for when the program runs.

* Because the time_t value is measured in seconds, it's possible to run the program twice quickly to see the same value output. Otherwise, the value output is different as time marches on.

Exercise ex2102 →