1 files changed, 10 insertions, 0 deletions

diff --git a/src/common/alignment.h b/src/common/alignment.h
index 88d5d3a65..cdd4833f8 100644
--- a/src/common/alignment.h
+++ b/src/common/alignment.h
@@ -51,7 +51,17 @@ public:
     using reference = T&;
     using const_reference = const T&;
 
+    using propagate_on_container_copy_assignment = std::true_type;
+    using propagate_on_container_move_assignment = std::true_type;
+    using propagate_on_container_swap = std::true_type;
+    using is_always_equal = std::true_type;
+
 public:
+    constexpr AlignmentAllocator() noexcept = default;
+
+    template <typename T2>
+    constexpr AlignmentAllocator(const AlignmentAllocator<T2, Align>&) noexcept {}
+
     pointer address(reference r) noexcept {
         return std::addressof(r);
     }