From bfe5a8e96fb58bc2d305eef32dbca751201f7235 Mon Sep 17 00:00:00 2001
From: Duarte Nunes <duarte@scylladb.com>
Date: Fri, 26 Jan 2018 10:54:17 +0000
Subject: [PATCH] utils/managed_vector: Return reference to emplaced element

We are in 2018, after all.

Signed-off-by: Duarte Nunes <duarte@scylladb.com>
Message-Id: <20180126105417.54285-1-duarte@scylladb.com>
---
 utils/managed_vector.hh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/utils/managed_vector.hh b/utils/managed_vector.hh
index 07ba8bc4c5..834e88b8cd 100644
--- a/utils/managed_vector.hh
+++ b/utils/managed_vector.hh
@@ -211,10 +211,11 @@ public:
         emplace_back(std::move(value));
     }
     template<typename... Args>
-    void emplace_back(Args&&... args) {
+    T& emplace_back(Args&&... args) {
         maybe_grow(_size + 1);
-        new (_data + _size) T(std::forward<Args>(args)...);
+        T* elem = new (_data + _size) T(std::forward<Args>(args)...);
         _size++;
+        return *elem;
     }
     void pop_back() {
         _data[_size - 1].~T();