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roll_fraction

featherbit::plugins::native::proxy_mirror

Function roll_fraction 

Source 
fn roll_fraction() -> f64
Expand description

Draws a pseudo-random fraction in [0.0, 1.0).

Uses a freshly seeded RandomState hasher (new per-call keys) rather than a rand crate — the same cheap, statistically casual source the fault-injection plugin uses for sampling. Not cryptographic and not a deterministic sequence; good enough for sample_ratio.