reroll if Rand::rand gives a zero seed
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Currently there's a chance a seed of all zeros could be produced by the other RNG. A zero seed will never produce anything but zero because of the way the RNG works and <http://xoroshiro.di.unimi.it/xoroshiro128plus.c> notes that "The state must be seeded so that it is not everywhere zero."
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Currently there's a chance a seed of all zeros could be produced by the other RNG. A zero seed will never produce anything but zero because of the way the RNG works.
"The state must be seeded so that it is not everywhere zero."
--http://xoroshiro.di.unimi.it/xoroshiro128plus.c