1 files changed, 10 insertions, 0 deletions
diff --git a/absl/strings/internal/str_join_internal.h b/absl/strings/internal/str_join_internal.h
index 440d47ff..3e730c7a 100644
--- a/absl/strings/internal/str_join_internal.h
+++ b/absl/strings/internal/str_join_internal.h
@@ -33,6 +33,7 @@
 
 #include <cstdint>
 #include <cstring>
+#include <initializer_list>
 #include <iterator>
 #include <limits>
 #include <memory>
@@ -321,6 +322,15 @@ std::string JoinRange(const Range& range, absl::string_view separator) {
   return JoinRange(begin(range), end(range), separator);
 }
 
+template <typename Tuple, std::size_t... I>
+std::string JoinTuple(const Tuple& value, absl::string_view separator,
+                      std::index_sequence<I...>) {
+  return JoinRange(
+      std::initializer_list<absl::string_view>{
+          static_cast<const AlphaNum&>(std::get<I>(value)).Piece()...},
+      separator);
+}
+
 }  // namespace strings_internal
 ABSL_NAMESPACE_END
 }  // namespace absl