From a85d958e4a773ace6983f5bcd53d915d7c48f9b6 Mon Sep 17 00:00:00 2001
From: Jacob Lifshay <programmerjake@gmail.com>
Date: Tue, 19 Sep 2017 22:03:23 -0700
Subject: [PATCH] fix wrong mask in alignment calculation

---
 src/util/memory.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/memory.h b/src/util/memory.h
index 45127e2..67479cb 100644
--- a/src/util/memory.h
+++ b/src/util/memory.h
@@ -66,7 +66,7 @@ struct Aligned_memory_allocator_base<Alignment, true>
         Base_pointer base = new unsigned char[size];
         auto alignment_start = reinterpret_cast<std::uintptr_t>(base + sizeof(Base_pointer));
         auto retval =
-            reinterpret_cast<unsigned char *>((alignment_start + Alignment - 1) & (Alignment - 1));
+            reinterpret_cast<unsigned char *>((alignment_start + Alignment - 1) & ~(Alignment - 1));
         auto base_location = reinterpret_cast<Base_pointer *>(retval) - 1;
         *base_location = base;
         return retval;
-- 
2.30.2