Update bitvec requirement from 0.17 to 0.18

[dependabot-preview[bot]]

Updates the requirements on bitvec to permit the latest version.

Changelog

Sourced from bitvec's changelog.

0.18.1

This fixes [Issue #69] and adds [Pull Request #68].

0.18.0

This release was implemented as a total discard and rewrite of the crate. The rewrite is largely a copy of what was discarded, but the crate has been rebuilt from nothing in order to provide more confidence that all parts of it were reached. As such, this release has a lot of changes.

This release raises the MSRV to 1.44.0, as [Rust PR #69373] stabilizes the integer constructors from_{b,l,n}e_bytes and removes the need to reïmplement them internally.

Added

• The CI test harness now covers targets beyond x86_64-unknown-linux-gnu, thanks to GitHub user [@Alexhuszagh]. bitvec guarantees support for all targets listed in the CI matrix through at least the next major relase. If your target is not in this list, please file an issue for inclusion.

• BitStore is implemented on the AtomicUN corresponding to each uN that implements BitStore, as well as on Cell<uN>.

Bit Arrays in Value Position

The BitArray<O, V> type begins support for emulating the C++ std::bitset<N> type, parameterized over the length in bits. This has been requested in the past, such as in GitHub [issue #32], and is still (as of writing) not able to be correctly implemented. Instead, BitArray is parameterized by a scalar or array type that is large enough to hold the number of bits that the user wants.

The bitarr! macro constructs either values of BitArray<O, V> with the same syntax as the other three macros, or constructs BitArary<O, V> typenames suitable for a number of bits in a given order/store array. Invoked as bitarr!(for BITS, in ORDER, STORE), it produces a typename that can be used to correctly type locations that cannot use inference from a value assigned into them, such as struct fields, static bindings, and const values.

Until type-level integers stabilize, this is the closest solution to the std::bitset<N> behavior that bitvec can provide.

Changed

• The implementation of the BitStore trait is refactored to fully separate the concepts of memory storage and access. This is not a breaking change to the user API, as BitStore is an opaque trait that can only be used in marker position.

Commits

• See full diff in compare view

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[codecov[bot]]

Codecov Report

Merging #198 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #198   +/-   ##
=======================================
  Coverage   60.78%   60.78%           
=======================================
  Files          40       40           
  Lines        2637     2637           
=======================================
  Hits         1603     1603           
  Misses       1034     1034           

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[sunjay]

cc @myrrlyn in case you have some time to work on this at some point. Looks like examples/bits.rs is the only source file that needs to be updated. :)

[dependabot-preview[bot]]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.