Generating a random bit - lack of randomness in C rand()

Question

I am using rand() to generate either 0 or 1 (rand() % 2). I am seeding it using the current time (srand(time(NULL))).

After mu

Answer 1

rand() is well-known to suck. random() is a bit better (sometimes), but drand48() and its family are much better.

In you need better than that, look into the mersene twister or other PRNG libraries. Or check out /dev/random if that can provide enough data for your needs.