| commit | 1cdf328d808ca01db56c5b5985b99fbf91f92eba | [log] [tgz] |
|---|---|---|
| author | yronglin <yronglin777@gmail.com> | Wed Jul 09 08:54:30 2025 +0800 |
| committer | Copybara-Service <copybara-worker@google.com> | Tue Jul 08 17:56:10 2025 -0700 |
| tree | 09005e0a07c9978279ff8c32a07146729cbf6278 | |
| parent | e79e095e23ff1709631018ba5b1926c4331ddd12 [diff] |
[C23][Parser] Diagnostic for attribute declaration where statement is required (#146224) Fixes: https://github.com/llvm/llvm-project/issues/141659 In C23, something like [[/*possible attributes*/]]; is an attribute declaration, not a statement. So it is not allowed by the syntax in places where a statement is required, specifically as the secondary block of a selection or iteration statement. Therefore, code like the following should give a diagnostic (at least with -std=c23 -pedantic), but Clang currently does not produce one: ```cpp int main(void) { if (1) [[]]; } ``` --------- Signed-off-by: yronglin <yronglin777@gmail.com> Signed-off-by: Wang, Yihan <yronglin777@gmail.com> Co-authored-by: Mariya Podchishchaeva <mariya.podchishchaeva@intel.com> GitOrigin-RevId: 191386fcd3335c5b7194da209d71d16549a2bb2f
Welcome to Clang.
This is a compiler front-end for the C family of languages (C, C++ and Objective-C) which is built as part of the LLVM compiler infrastructure project.
Unlike many other compiler frontends, Clang is useful for a number of things beyond just compiling code: we intend for Clang to be host to a number of different source-level tools. One example of this is the Clang Static Analyzer.
If you're interested in more (including how to build Clang) it is best to read the relevant websites. Here are some pointers:
Information on Clang: http://clang.llvm.org/
Building and using Clang: http://clang.llvm.org/get_started.html
Clang Static Analyzer: http://clang-analyzer.llvm.org/
Information on the LLVM project: http://llvm.org/
If you have questions or comments about Clang, a great place to discuss them is on the Clang forums:
If you find a bug in Clang, please file it in the LLVM bug tracker: