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-rw-r--r--absl/strings/str_cat.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/absl/strings/str_cat.h b/absl/strings/str_cat.h
index 00af84ea..5ee26db0 100644
--- a/absl/strings/str_cat.h
+++ b/absl/strings/str_cat.h
@@ -318,7 +318,8 @@ class AlphaNum {
// This overload matches only scoped enums.
template <typename T,
typename = typename std::enable_if<
- std::is_enum<T>{} && !std::is_convertible<T, int>{}>::type>
+ std::is_enum<T>{} && !std::is_convertible<T, int>{} &&
+ !strings_internal::HasAbslStringify<T>::value>::type>
AlphaNum(T e) // NOLINT(runtime/explicit)
: AlphaNum(static_cast<typename std::underlying_type<T>::type>(e)) {}