[all-commits] [llvm/llvm-project] 4f50a7: [clang][clang-scan-deps] Add LangOptions::AllowLit...

[Naveen Seth Hanig via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4f50a725fa1921915f29b5d6603d91aef3dbe589
      https://github.com/llvm/llvm-project/commit/4f50a725fa1921915f29b5d6603d91aef3dbe589
  Author: Naveen Seth Hanig <naveen.hanig at outlook.com>
  Date:   2026-03-02 (Mon, 02 Mar 2026)

  Changed paths:
    M clang/include/clang/Basic/LangOptions.def
    M clang/include/clang/Basic/LangStandard.h
    M clang/lib/Basic/LangOptions.cpp
    M clang/lib/Format/Format.cpp
    M clang/lib/Lex/DependencyDirectivesScanner.cpp
    M clang/lib/Lex/Lexer.cpp
    M clang/unittests/Lex/DependencyDirectivesScannerTest.cpp

  Log Message:
  -----------
  [clang][clang-scan-deps] Add LangOptions::AllowLiteralDigitSeparator to fix #88896 (#184235)

Fixes #88896 by following the approach described in
https://github.com/llvm/llvm-project/pull/95798#discussion_r1649496882.
This adds `LangOptions::AllowLiteralDigitSeparator`, following the
pattern used for `RawStringLiterals` in #88265.

It is enabled by default for C++14 and C23, and the Scanner sets it
explicitly to always allow literals with digit separators in directives.

Originally authored by @tsfn (Yifan Fang, <gatsfn at gmail.com>) in
#158420.

Co-authored-by: Yifan Fang <gatsfn at gmail.com>



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