Issues with seeding a pseudo-random number generator more than once?

Question

I\'ve seen quite a few recommendations for not seeding pseudo-random number generators more than once per execution, but never accompanied by a thorough explanation. Of cour

Answer 1

If your seed is predictable, which it is here since you're just incrementing it, the output from rand() will also be predictable.

It really depends on why you want to generate random numbers, and how "random" is an acceptable random for you. In your example, it may avoid duplicates in rapid succession, and that may be good enough for you. After all, what matters is that it runs.

On almost every platform there is a better way to generate random numbers than rand().