From 0f5f660fa31787e283cfb14f52d3f7969c7baaee Mon Sep 17 00:00:00 2001
From: Danny Robson <danny@nerdcruft.net>
Date: Wed, 4 Jul 2018 14:02:29 +1000
Subject: [PATCH] pool: align nodes to pointer boundaries

---
 pool.hpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/pool.hpp b/pool.hpp
index 0b5dc36a..f4dbc4e3 100644
--- a/pool.hpp
+++ b/pool.hpp
@@ -19,6 +19,7 @@
 
 #include "nocopy.hpp"
 #include "debug.hpp"
+#include "cast.hpp"
 
 #include <atomic>
 #include <cstdlib>
@@ -34,7 +35,7 @@ namespace util {
     protected:
         union node;
 
-        union alignas (T) node {
+        union alignas(node*) node {
             std::atomic<node*> next;
             char data[sizeof (T)];
         };
@@ -97,7 +98,7 @@ namespace util {
 
                 if (m_next.compare_exchange_weak (curr, soon)) {
                     ++m_size;
-                    return std::launder (reinterpret_cast<T*> (curr));
+                    return std::launder (util::cast::alignment<T*> (curr));
                 }
             } while (1);
         }
@@ -105,7 +106,7 @@ namespace util {
         void
         deallocate (T *base)
         {
-            auto soon = reinterpret_cast<node*> (base);
+            auto soon = util::cast::alignment<node*> (base);
 
             do {
                 node *curr = m_next;