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rand* 0.9.0-alpha.0

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@dhardy dhardy released this 18 Feb 17:53
· 41 commits to master since this release
7ff0fc9

This is a pre-release. To depend on this version, use rand = "=0.9.0-alpha.0" to prevent automatic updates (which can be expected to include breaking changes).

Generators

  • Change SmallRng::seed_from_u64 implementation (#1203)
  • Replace SeedableRng impl for SmallRng with inherent methods, excluding fn from_seed (#1368)

Sequences

  • Simpler and faster implementation of Floyd's F2 (#1277). This
    changes some outputs from rand::seq::index::sample and
    rand::seq::SliceRandom::choose_multiple.
  • New, faster algorithms for IteratorRandom::choose and choose_stable (#1268)
  • New, faster algorithms for SliceRandom::shuffle and partial_shuffle (#1272)
  • Re-introduce Rng::gen_iter (#1305)
  • Split trait SliceRandom into IndexedRandom, IndexedMutRandom, SliceRandom (#1382)

Distributions

  • {Uniform, UniformSampler}::{new, new_inclusive} return a Result (instead of potentially panicking) (#1229)
  • Uniform implements TryFrom instead of From for ranges (#1229)
  • Uniform now uses Canon's method (single sampling) / Lemire's method (distribution sampling) for faster sampling (breaks value stability; #1287)
  • Relax Sized bound on Distribution<T> for &D (#1278)
  • Explicit impl of sample_single_inclusive (+~20% perf) (#1289)
  • Impl DistString for Slice<char> and Uniform<char> (#1315)
  • Let Standard support all NonZero* types (#1332)
  • Add trait Weight, allowing WeightedIndex to trap overflow (#1353)
  • Rename WeightedError to WeightError, revising variants (#1382)

SIMD

  • Switch to std::simd, expand SIMD & docs (#1239)
  • Optimise SIMD widening multipy (#1247)

Other

  • Bump MSRV to 1.60.0 (#1207, #1246, #1269, #1341)
  • Improve thread_rng related docs (#1257)
  • Add Cargo.lock.msrv file (#1275)
  • Docs: enable experimental --generate-link-to-definition feature (#1327)
  • Use zerocopy to replace some unsafe code (#1349)
  • Support std feature without getrandom or rand_chacha (#1354)