this post was submitted on 16 Oct 2024
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Rust
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That makes complete sense. Ranges implement
fmt::Debug
,..
is a range, in particular the full range (all values)..=
isn't because the upper bound is missing but..=..
ranges from the beginning to the... full range. Which doesn't make sense semantically but you can debug print it so add a couple more nested calls and you get a punch card.I totally didn't need the Rust playground to figure that out.