From ddb0e7596279fde80245cbbd1b63de8bbf3c287b Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Fri, 2 Nov 2018 14:29:19 +1100
Subject: [PATCH] alloc/arena: add mutating accessor to underlying store

---
 alloc/arena.hpp | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/alloc/arena.hpp b/alloc/arena.hpp
index 02f41f64..16c43044 100644
--- a/alloc/arena.hpp
+++ b/alloc/arena.hpp
@@ -128,11 +128,8 @@ namespace cruft::alloc {
         decltype(auto) reset (Args&&...args)
         { return m_store.reset (std::forward<Args> (args)...); }
 
-        /// Returns a const reference to the inner allocator.
-        ///
-        /// Do not return a non-const reference. If the user wants direct
-        /// access they should directly use a non-owning arena.
         auto const& store (void) const& { return m_store; }
+        auto      & store (void)      & { return m_store; }
 
     private:
         AllocT m_store;