@@ -74,7 +74,7 @@ std::string GetExprMapKey(const std::string &str) {
   return result;
 }
 
-constexpr std::string_view kPackMarker = "&&...";
+constexpr const char kPackMarker[] = "&&...";
 
 std::string GetTypeMapKey(const std::string &str) {
   auto n = str.find_first_of("<[");
Original file line number	Diff line number	Diff line change
`@@ -74,7 +74,7 @@ std::string GetExprMapKey(const std::string &str) {`
`74`	`74`	`return result;`
`75`	`75`	`}`
`76`	`76`
`77`		`-constexpr std::string_view kPackMarker = "&&...";`
	`77`	`+constexpr const char kPackMarker[] = "&&...";`
`78`	`78`
`79`	`79`	`std::string GetTypeMapKey(const std::string &str) {`
`80`	`80`	`auto n = str.find_first_of("<[");`