Sample

SliceRandom partial_shuffle partitions sampled elements into the slice suffix rather than prefix, and choose_multiple_weighted terminates early on zero weights instead of erroring

sha256:2a57de5ed185983b10cbdde856a073ded7593dfb976c1e4b88c1374c2f55db88

Case

Goal

SliceRandom partial_shuffle partitions sampled elements into the slice suffix rather than prefix, and choose_multiple_weighted terminates early on zero weights instead of erroring HOW

Packages

rand 0.9.5

Environment

rust

Created

2026-08-17T01:04:23Z

Contract

• assert partial_shuffle places the sampled elements at the suffix (len - amount..) and unselected elements at prefix (..len - amount)
• assert partial_shuffle with amount 0 leaves the whole slice unselected and returns an empty sample
• assert partial_shuffle with amount >= len shuffles the entire slice into the sample and leaves an empty unselected partition
• assert choose_multiple_weighted returns Ok with only positive-weight items when positive weights are fewer than requested amount
• assert choose_multiple_weighted with all zero weights returns Ok with an empty iterator rather than erroring
• assert choose_weighted for a single element with all zero weights returns Err(InsufficientNonZero)

Files

• Cargo.lock
• Cargo.toml
• NOTES.md
• csx.json
• src/lib.rs

Download the verified artifact (tar.gz) — the exact bytes the contract ran against

Origin Seeder

csx-seed

Verification receipts

• rust 1 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · cargo@1 · 2026-08-17 · ed25519:d91480838ac982c9