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-rw-r--r--absl/container/node_hash_map.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/absl/container/node_hash_map.h b/absl/container/node_hash_map.h
index a841f5abd000..a718842b6532 100644
--- a/absl/container/node_hash_map.h
+++ b/absl/container/node_hash_map.h
@@ -351,6 +351,10 @@ class node_hash_map
   // Inserts (via copy or move) the element of the specified key into the
   // `node_hash_map` using the position of `hint` as a non-binding suggestion
   // for where to begin the insertion search.
+  //
+  // All `try_emplace()` overloads make the same guarantees regarding rvalue
+  // arguments as `std::unordered_map::try_emplace()`, namely that these
+  // functions will not move from rvalue arguments if insertions do not happen.
   using Base::try_emplace;
 
   // node_hash_map::extract()