pub fn logprob_of(
f32_logits: &[f32],
target: u32,
k: usize,
) -> (f32, Vec<(u32, f32)>)Expand description
Log-softmax over f32_logits; returns the target token’s logprob and
the top-k alternatives sorted descending by logprob. k=0 returns an
empty top vector (chosen-token logprob only). A target outside the
vocab yields -inf (fail-visible, never panics).