how to convert from struct tm to long int in C?

Question

this is a simple question ... is there a way to convert a struct tm ct; to a long integer ? here's how my code look like:

struct tm ct;
    scanf("%d", &ct.tm_sec);
    scanf("%d", &ct.tm_min);    
    scanf("%d", &ct.tm_hour);
    scanf("%d", &ct.tm_mday);
    scanf("%d", &ct.tm_mon);
    scanf("%d", &ct.tm_year);

Answer 1

You can use the mktime() function to convert a struct tm into a time_t, which is an integer value.