From 417175b2dd027d8e56f77b678e0d26d6aa06cb4e Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Tue, 29 Aug 2017 12:28:59 +1000
Subject: [PATCH] alloc/arena: add descriptive comment for arena

---
 alloc/arena.hpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/alloc/arena.hpp b/alloc/arena.hpp
index a61939bb..16be21dd 100644
--- a/alloc/arena.hpp
+++ b/alloc/arena.hpp
@@ -23,6 +23,8 @@
 #include <utility>
 
 namespace util::alloc {
+    /// wraps a block allocator with an interface suitable for allocating
+    /// individual objects.
     template <class T>
     class arena {
     public: