From 3d56b970529c000a7bfa6b2df68c7d9e7260fb68 Mon Sep 17 00:00:00 2001
From: Sebastian Messmer <messmer@fb.com>
Date: Wed, 5 Apr 2017 21:02:03 +0100
Subject: [PATCH] Make unique_ref constructor explicit

---
 src/cpp-utils/pointer/unique_ref.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cpp-utils/pointer/unique_ref.h b/src/cpp-utils/pointer/unique_ref.h
index 7e3a4f40..d219ecdd 100644
--- a/src/cpp-utils/pointer/unique_ref.h
+++ b/src/cpp-utils/pointer/unique_ref.h
@@ -98,7 +98,7 @@ public:
     }
 
 private:
-    unique_ref(std::unique_ptr<T, D> target) noexcept: _target(std::move(target)) {}
+    explicit unique_ref(std::unique_ptr<T, D> target) noexcept: _target(std::move(target)) {}
     template<class U, class... Args> friend unique_ref<U> make_unique_ref(Args&&... args);
     template<class T2, class D2> friend boost::optional<unique_ref<T2, D2>> nullcheck(std::unique_ptr<T2, D2> ptr) noexcept;
     template<class T2, class D2> friend class unique_ref;