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Ava Chow 91e0beede2
Merge bitcoin/bitcoin#30160: util: add BitSet 
47f705b33f tests: add fuzz tests for BitSet (Pieter Wuille)
59a6df6bd5 util: add BitSet (Pieter Wuille)

Pull request description:

  Extracted from #30126.

  This introduces the `BitSet` data structure, inspired by `std::bitset`, but with a few features that cannot be implemented on top without efficiency loss:
  * Finding the first set bit (`First`)
  * Finding the last set bit (`Last`)
  * Iterating over all set bits (`begin` and `end`).

  And a few other operators/member functions that help readability for #30126:
  * `operator-` for set subtraction
  * `Overlaps()` for testing whether intersection is non-empty
  * `IsSupersetOf()` for testing (non-strict) supersetness
  * `IsSubsetOf()` for testing (non-strict) subsetness
  * `Fill()` to construct a set with all numbers from 0 to n-1, inclusive
  * `Singleton()` to construct a set with one specific element.

  Everything is tested through a simulation-based fuzz test that compares the behavior with normal `std::bitset` equivalent operations.

ACKs for top commit:
  instagibbs:
    ACK 47f705b33f
  achow101:
    ACK 47f705b33f
  cbergqvist:
    re-ACK 47f705b33f
  theStack:
    Code-review ACK 47f705b33f

Tree-SHA512: e451bf4b801f193239ee434b6b614f5a2ac7bb49c70af5aba24c2ac0c54acbef4672556800e4ac799ae835632bdba716209c5ca8c37433a6883dab4eb7cd67c1
2024-06-11 17:28:51 -04:00
.github ci: Use relative paths in win64-native CI job consistently 2024-06-07 10:47:36 +01:00
.tx qt: Bump Transifex slug for 27.x 2024-02-07 09:24:32 +00:00
build-aux/m4 build: no-longer allow GCC-10 in C++20 check 2024-06-05 10:47:52 +01:00
build_msvc Merge bitcoin/bitcoin#29494: build: Assume HAVE_CONFIG_H, Add IWYU pragma keep to bitcoin-config.h includes 2024-05-07 14:14:03 -04:00
ci ci: update deps for macOS cross build 2024-06-10 13:15:23 +01:00
contrib refactor: rename (macho) ld64 to lld 2024-06-10 13:20:54 +01:00
depends refactor: rename (macho) ld64 to lld 2024-06-10 13:20:54 +01:00
doc Merge bitcoin/bitcoin#30257: build: Remove --enable-gprof 2024-06-10 12:01:19 +01:00
share contrib: rpcauth.py - Add new option (-j/--json) to output text in json format 2024-04-25 08:32:28 -05:00
src Merge bitcoin/bitcoin#30160: util: add BitSet 2024-06-11 17:28:51 -04:00
test Merge bitcoin/bitcoin#30160: util: add BitSet 2024-06-11 17:28:51 -04:00
.cirrus.yml ci: Skip git install if it is already installed 2024-02-16 16:06:45 +01:00
.editorconfig ci: Drop AppVeyor CI integration 2021-09-07 06:12:53 +03:00
.gitattributes Separate protocol versioning from clientversion 2014-10-29 00:24:40 -04:00
.gitignore Merge bitcoin/bitcoin#29733: build, macos: Drop unused osx_volname target 2024-04-02 14:57:22 +01:00
.python-version Bump .python-version from 3.9.17 to 3.9.18 2023-10-24 18:51:24 +02:00
.style.yapf Update .style.yapf 2023-06-01 23:35:10 +05:30
autogen.sh build: make sure we can overwrite config.{guess,sub} 2023-06-13 14:58:43 +02:00
configure.ac Merge bitcoin/bitcoin#30257: build: Remove --enable-gprof 2024-06-10 12:01:19 +01:00
CONTRIBUTING.md doc: Correct pull request prefix for scripts and tools 2024-05-22 09:59:58 +02:00
COPYING doc: upgrade Bitcoin Core license to 2024 2024-01-10 16:29:01 -06:00
INSTALL.md doc: Added hyperlink for doc/build 2021-09-09 19:53:12 +05:30
Makefile.am Merge bitcoin/bitcoin#29739: build: swap cctools otool for llvm-objdump 2024-05-11 18:34:42 +08:00
README.md doc: Explain Bitcoin Core in README.md 2022-05-10 07:49:09 +02:00
SECURITY.md Update security.md contact for achow101 2023-12-14 18:14:54 -05:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

For an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/.

What is Bitcoin Core?

Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built.

Further information about Bitcoin Core is available in the doc folder.

License

Bitcoin Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.

Development Process

The master branch is regularly built (see doc/build-*.md for instructions) and tested, but it is not guaranteed to be completely stable. Tags are created regularly from release branches to indicate new official, stable release versions of Bitcoin Core.

The https://github.com/bitcoin-core/gui repository is used exclusively for the development of the GUI. Its master branch is identical in all monotree repositories. Release branches and tags do not exist, so please do not fork that repository unless it is for development reasons.

The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.

Testing

Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.

Automated Testing

Developers are strongly encouraged to write unit tests for new code, and to submit new unit tests for old code. Unit tests can be compiled and run (assuming they weren't disabled in configure) with: make check. Further details on running and extending unit tests can be found in /src/test/README.md.

There are also regression and integration tests, written in Python. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.

Manual Quality Assurance (QA) Testing

Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.

Translations

Changes to translations as well as new translations can be submitted to Bitcoin Core's Transifex page.

Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.

Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.