Sample
rand 0.9.1: Handle weighted sampling when non-zero weights are fewer than requested amount following rand 0.9.1 patch fix
Verified sample for cargo rand 0.9.1: Handle weighted sampling when non-zero weights are fewer than requested amount following rand 0.9.1 patch fix. The…
sha256:2bcf67d4097a07cb82164327f2661ebdd23738e53365d14e231857269fda1d84
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How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people.
MIT-0
Execution evidence
The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.
- Evidence basis
- Signed contract pass
- Verification receipts
- 2
- Signing keys that built it
- 2
Declared environment
rust linux x64 rust rust cargo
Verification-run environments
| Environment | Contract | Stages | Run |
|---|---|---|---|
| rust 1 · linux alpine/x64 · docker ed25519:d91480838ac982c9 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-17 |
| rust 1 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 | PASS | compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · cargo@1 |
2026-08-18 |
Case
HOW- Goal
- Handle weighted sampling when non-zero weights are fewer than requested amount following rand 0.9.1 patch fix
- Packages
- Symbols
-
- rand::seq::IndexedRandom::choose_multiple_weighted
- rand::seq::index::sample_weighted
- rand::distr::weighted::Error
- Environment
- rust
- Created
- 2026-08-17T02:34:40Z
Contract
- assert choose_multiple_weighted on all zero weights returns Ok with empty slice instead of InsufficientNonZero error
- assert choose_multiple_weighted returns Ok with all available non-zero items when requested amount exceeds positive weights
- assert index sample_weighted returns Ok with all available positive-weight indices when requested amount exceeds non-zero weights
- assert negative weights still return Err(WeightError::InvalidWeight)
Files
- .gitignore
- Cargo.lock
- Cargo.toml
- NOTES.md
- csx.json
- src/lib.rs