Extra Clang Tools 10.0.0 (In-Progress) Release Notes

Written by the LLVM Team


These are in-progress notes for the upcoming Extra Clang Tools 10 release. Release notes for previous releases can be found on the Download Page.


This document contains the release notes for the Extra Clang Tools, part of the Clang release 10.0.0. Here we describe the status of the Extra Clang Tools in some detail, including major improvements from the previous release and new feature work. All LLVM releases may be downloaded from the LLVM releases web site.

For more information about Clang or LLVM, including information about the latest release, please see the Clang Web Site or the LLVM Web Site.

Note that if you are reading this file from a Subversion checkout or the main Clang web page, this document applies to the next release, not the current one. To see the release notes for a specific release, please see the releases page.

What’s New in Extra Clang Tools 10.0.0?

Some of the major new features and improvements to Extra Clang Tools are listed here. Generic improvements to Extra Clang Tools as a whole or to its underlying infrastructure are described first, followed by tool-specific sections.

Improvements to clangd

The improvements are…

Improvements to clang-doc

  • clang-doc now generates documentation in HTML format.

Improvements to clang-query

The improvements are…

Improvements to clang-rename

The improvements are…

Improvements to clang-tidy

New checks

Changes in existing checks

  • Improved bugprone-posix-return check.

    Now also checks if any calls to pthread_* functions expect negative return values.

  • Improved hicpp-signed-bitwise check.

    The check now supports the IgnorePositiveIntegerLiterals option.

  • Improved modernize-avoid-bind check.

    The check now supports supports diagnosing and fixing arbitrary callables instead of only simple free functions. The PermissiveParameterList option has also been added to address situations where the existing fix-it logic would sometimes generate code that no longer compiles.

  • The modernize-use-equals-default fix no longer adds semicolons where they would be redundant.

  • Improved modernize-use-override check.

    The check now supports the AllowOverrideAndFinal option to eliminate conflicts with gcc -Wsuggest-override or gcc -Werror=suggest-override.

  • The modernize-use-using check now converts typedefs containing struct definitions and multiple comma-separated types.

  • Improved readability-magic-numbers check.

    The check now supports the IgnoreBitFieldsWidths option to suppress the warning for numbers used to specify bit field widths.

    The check was updated to eliminate some false positives (such as using class enumeration as non-type template parameters, or the synthetically computed length of a static user string literal.)

  • Improved readability-redundant-member-init check.

    The check now supports the IgnoreBaseInCopyConstructors option to avoid “base class ‘Foo’ should be explicitly initialized in the copy constructor” warnings or errors with gcc -Wextra or gcc -Werror=extra.

  • The readability-redundant-string-init check now supports a StringNames option enabling its application to custom string classes.

Renamed checks

Improvements to include-fixer

The improvements are…

Improvements to clang-include-fixer

The improvements are…

Improvements to modularize

The improvements are…

Improvements to pp-trace

The improvements are…

Clang-tidy visual studio plugin

The clang-tidy-vs plugin has been removed from clang, as it’s no longer maintained. Users should migrate to Clang Power Tools instead.