rsmith added inline comments.
================ Comment at: include/clang/Basic/DiagnosticLexKinds.td:189-190 InGroup<CXXPre1zCompatPedantic>, DefaultIgnore; +def err_cxx1z_string_view_literal : Error< + "string_view literals are a C++1z feature">; def ext_binary_literal : Extension< ---------------- I don't see a need for a custom diagnostic for this. Using our normal "reserved ud-suffix" diagnostic seems fine, and it doesn't make sense to treat this suffix as a hard error but accept all the rest with a warning. ================ Comment at: lib/Lex/LiteralSupport.cpp:1716-1717 +StringLiteralParser::UDSuffixResult +StringLiteralParser::isValidUDSuffix(const LangOptions &LangOpts, + StringRef Suffix) { + if (!LangOpts.CPlusPlus11 || Suffix.empty()) ---------------- Just make this call `NumericLiteralParser::isValidUDSuffix` and then check for the `sv` case. All the numeric suffixes are also valid string literal suffixes for the form `operator""suffix`. https://reviews.llvm.org/D26829 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits