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The home of the ICU project source code.

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Fredrik Roubert 3534d337c6 ICU-20973 Rewrite polymorphic CacheKeyBase equality operators for C++20. The existing polymorphic equality operators that use different types for the `this` and `other` objects are ambiguous with C++20 resolution rules that require equality for reversed arguments. In order to resolve that, while also possibly making the implementation somewhat simpler overall, the implementation classes (LocaleCacheKey and DateFmtBestPatternKey) now get normal (non-polymorphic) equality operators that are trivially non-ambiguous (and as a bonus also don't need any type casts), while the dynamic type checking logic is moved into protected helper functions, which in the end are invoked (without any ambiguity) by friend operators in the base class. This way, all equality testing of cache key objects ends up taking one of these two possible paths: 1. Both sides of the equality operator are of the same implementation type (ie. LocaleCacheKey or DateFmtBestPatternKey): The type specific equality operator is called directly, comparing the relevant attributes of the two objects directly. 2. The two sides of the equality operator are either of different types or of some base class type: The friend equality operators of CacheKeyBase call the virtual helper function to figure out whether the two objects are actually of the same type and if they are and this type is an implementation type then does the necessary type cast to get to 1.		2021-08-26 00:12:04 +02:00
.ci-builds	ICU-20973 Add C++20 build bots to Azure CI: Clang-13, GCC-11, MSVC with std:c++latest	2021-08-17 15:42:27 -07:00
.github	ICU-21569 Fix Java7 breakage in LSTM & add Java7 CI	2021-05-27 16:11:51 -07:00
docs	ICU-21590 Add skeleton syntax for integer-width-trunc	2021-08-25 12:51:51 -05:00
icu4c	ICU-20973 Rewrite polymorphic CacheKeyBase equality operators for C++20.	2021-08-26 00:12:04 +02:00
icu4j	ICU-21590 Add skeleton syntax for integer-width-trunc	2021-08-25 12:51:51 -05:00
tools	ICU-21708 Update ant version in cldr-to-icu tool	2021-08-24 13:46:57 -04:00
vendor/double-conversion	ICU-21508 Rename 'master' to 'main' in docs, maven files, scripts, etc	2021-03-24 18:56:50 +01:00
.bazeliskrc	ICU-21635 Unicode 14 beta	2021-06-21 22:26:15 +00:00
.cpyskip.txt	ICU-21535 Port Cygwin CI build from AppVeyor to Azure Pipelines	2021-04-08 17:04:07 -07:00
.gitattributes	ICU-20717 move small files out of lfs: .dat, .gz, .gif	2020-09-17 11:09:48 -07:00
.gitignore	ICU-21404 Migrate various documents from Google Sites pages to Markdown.	2021-06-11 09:48:19 +02:00
KEYS	ICU-21361 Add public PGP key	2020-11-10 13:50:58 -08:00
README.md	ICU-21244 Fix the Valgrind status badge in the top-level Readme.	2021-08-18 16:23:17 -07:00
WORKSPACE	ICU-21117 Use Bazel to automate generation of Unicode data files	2021-03-24 10:39:38 -07:00

README.md

International Components for Unicode

This is the repository for the International Components for Unicode. The ICU project is under the stewardship of The Unicode Consortium.

Source: https://github.com/unicode-org/icu
Bugs: https://unicode-org.atlassian.net/projects/ICU
API Docs: https://unicode-org.github.io/icu-docs/
User Guide: https://unicode-org.github.io/icu/

🔴🔴🔴 Special Notice About Branch Renaming 🔴🔴🔴

Around March 24-25, 2021 we renamed the master branch to main. You may need to rename your branch in your local git repo and change your normal git command to reflect this change. See also https://github.com/github/renaming

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License

Please see ./icu4c/LICENSE (C and J are under an identical license file.)