Converting time_t to int

Question

I want to convert a given time into epoch(time_t) and vice versa. can anyone tell what is the routine or algorithm for this?

Thanks

Update

Answer 1

You should cast it to a long int instead of int.

long int t = static_cast time(NULL);

An int might not be enough to hold the time, for example, on my platform, time_t is a typedef of __int64.