================ @@ -2068,7 +2068,8 @@ bool Lexer::LexNumericConstant(Token &Result, const char *CurPtr) { } // If we have a digit separator, continue. - if (C == '\'' && (LangOpts.CPlusPlus14 || LangOpts.C23)) { + if (C == '\'' && + (LangOpts.CPlusPlus14 || LangOpts.C23 || ParsingPreprocessorDirective)) { ---------------- AaronBallman wrote:
There's not a one-to-one mapping of `LangOptions` to frontend of driver options, yes. But I think it's a stretch to argue that the standard mode tracked by `LangOptions` is not exposed via flags. I don't think per-feature `LangOptions` is viable. There's digit separators, hex float support, binary literal support, different literal suffixes, various keywords, etc and that doesn't seem likely to scale well. Also, it makes it seem like we support a la carte language features when we don't -- we intentionally don't want to let users disable standard features (in general; exceptions exist) and so that approach gives the impression contributors need to check both language mode and feature availability which is a maintenance concern. I'm still wondering about the question I asked here: https://github.com/llvm/llvm-project/pull/93753#issuecomment-2173666602 https://github.com/llvm/llvm-project/pull/95798 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits