What‘s the difference between srand(1) and srand(0)

Question

I just found out the hard way that srand(1) resets the PRNG of C(++) to the state before any call to srand (as defined in the reference). However,

Answer 1

If seed is set to 1, the generator is reinitialized to its initial value and produces the same values as before any call to rand or srand. Taken from the srand reference