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Wladimir J. van der Laan b8740d6737
Merge #18468: Span improvements 
26acc8dd9b Add sanity check asserts to span when -DDEBUG (Pieter Wuille)
2676aeadfa Simplify usage of Span in several places (Pieter Wuille)
ab303a16d1 Add Span constructors for arrays and vectors (Pieter Wuille)
bb3d38fc06 Make pointer-based Span construction safer (Pieter Wuille)
1f790a1147 Make Span size type unsigned (Pieter Wuille)

Pull request description:

  This improves our Span class by making it closer to the C++20 `std::span` one:
  * ~~Support conversion between compatible Spans (e.g. `Span<char>` to `Span<const char>`).~~ (done in #18591)
  * Make the size type `std::size_t` rather than `std::ptrdiff_t` (the C++20 one underwent the same change).
  * Support construction of Spans directly from arrays, `std::string`s, `std::array`s, `std::vector`s, `prevector`s, ... (for all but arrays, this only works for const containers to prevent surprises).

  And then make use of those improvements in various call sites.

  I realize the template magic used looks scary, but it's only needed to make overload resultion make the right choices. Note that the operations done on values are all extremely simple: no casts, explicit conversions, or warning-silencing constructions. That should hopefully make it simpler to review.

ACKs for top commit:
  laanwj:
    Code review ACK 26acc8dd9b
  promag:
    Code review ACK 26acc8dd9b.

Tree-SHA512: 5a5bd346a140edf782b5b3b3f04d9160c7b9e9def35159814a07780ab1dd352545b88d3cc491e0f80d161f829c49ebfb952fddc9180f1a56f1257aa51f38788a
2020-06-18 14:12:21 +02:00
.github doc: Explain that anyone can work on good first issues, move text to CONTRIBUTING.md 2020-05-28 11:59:20 -04:00
.tx tx: Bump transifex slug to 020x 2020-03-16 10:52:55 +01:00
build-aux/m4 Merge #18297: build: Use pkg-config in BITCOIN_QT_CONFIGURE for all hosts including Windows 2020-06-13 15:41:39 +08:00
build_msvc Update MSVC build config for libsecp256k1 2020-06-09 13:41:38 -07:00
ci tests: run test-security-check.py in CI 2020-06-16 19:52:30 +08:00
contrib Merge #19287: contrib: Fix SyntaxWarning in Python base58 implementation 2020-06-17 17:05:15 +08:00
depends Merge #18297: build: Use pkg-config in BITCOIN_QT_CONFIGURE for all hosts including Windows 2020-06-13 15:41:39 +08:00
doc doc: release note for db log category removal 2020-06-07 17:59:55 +02:00
share Merge #18616: refactor: Cleanup clientversion.cpp 2020-05-13 20:14:51 +02:00
src Merge #18468: Span improvements 2020-06-18 14:12:21 +02:00
test Merge #19304: test: Check that message sends successfully when header is split across two buffers 2020-06-18 07:39:37 -04:00
.appveyor.yml Merge #18640: appveyor: Remove clcache 2020-04-15 16:19:52 -04:00
.cirrus.yml cirrus: Remove no longer needed install step 2020-05-30 08:32:29 -04:00
.fuzzbuzz.yml ci: Add fuzzbuzz integration 2020-04-14 16:38:26 +00:00
.gitattributes
.gitignore Squashed 'src/secp256k1/' changes from b19c000063..2ed54da18a 2020-06-09 13:39:09 -07:00
.python-version .python-version: Specify full version 3.5.6 2019-03-02 12:06:26 -05:00
.style.yapf test: .style.yapf: Set column_limit=160 2019-03-04 18:28:13 -05:00
.travis.yml ci: Move travis workarounds to .travis.yml 2020-06-14 11:33:25 -04:00
autogen.sh scripted-diff: Bump copyright of files changed in 2019 2019-12-30 10:42:20 +13:00
configure.ac build: don't warn when doxygen isn't found 2020-06-17 18:27:00 +08:00
CONTRIBUTING.md doc: Explain that anyone can work on good first issues, move text to CONTRIBUTING.md 2020-05-28 11:59:20 -04:00
COPYING doc: Update license year range to 2020 2019-12-26 23:11:21 +01:00
INSTALL.md Update INSTALL landing redirection notice for build instructions. 2016-10-06 12:27:23 +13:00
libbitcoinconsensus.pc.in build: remove libcrypto as internal dependency in libbitcoinconsensus.pc 2019-11-19 15:03:44 +01:00
Makefile.am tests: run test-security-check.py in CI 2020-06-16 19:52:30 +08:00
README.md Squashed 'src/secp256k1/' changes from b19c000063..2ed54da18a 2020-06-09 13:39:09 -07:00
SECURITY.md Squashed 'src/secp256k1/' changes from b19c000063..2ed54da18a 2020-06-09 13:39:09 -07:00

README.md

Bitcoin Core integration/staging tree

https://bitcoincore.org

What is Bitcoin?

Bitcoin is an experimental digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Bitcoin Core is the name of open source software which enables the use of this currency.

For more information, as well as an immediately usable, binary version of the Bitcoin Core software, see https://bitcoincore.org/en/download/, or read the original whitepaper.

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 is not guaranteed to be completely stable. Tags are created regularly to indicate new official, stable release versions of Bitcoin Core.

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, that are run automatically on the build server. These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py

The Travis CI system makes 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.

Translators should also subscribe to the mailing list.