rymiel added a comment. > The operator `""` and the identifier that follows should be two separate > tokens regardless if the identifier starts with an underscore.
So, after some investigation, it turns out the clang lexer only combines an underscore-less UDL to a single `string_literal` token if it's a valid standard library UDL (in the given standard library version) https://github.com/llvm/llvm-project/blob/6f46ff3765dcdc178b9cf52ebd8c03437806798a/clang/lib/Lex/Lexer.cpp#L1960-L1975 https://github.com/llvm/llvm-project/blob/3f18f7c0072b642f5fe88d2fb7bb8ccf69a6c6f5/clang/lib/Lex/LiteralSupport.cpp#L1180-L1185 Which means only single-token `string_literal`s should be considered Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D134853/new/ https://reviews.llvm.org/D134853 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
