From 979f5cfa883ea254c8d253e5ef51f21c77b30526 Mon Sep 17 00:00:00 2001
From: Constantin Pape <c.pape@gmx.net>
Date: Sun, 17 Feb 2019 18:46:02 +0100
Subject: [PATCH] Fix clang issue

---
 .../nifty/graph/long_range_adjacency/long_range_adjacency.hxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/nifty/graph/long_range_adjacency/long_range_adjacency.hxx b/include/nifty/graph/long_range_adjacency/long_range_adjacency.hxx
index a99c30f7a..d0dca9b3a 100644
--- a/include/nifty/graph/long_range_adjacency/long_range_adjacency.hxx
+++ b/include/nifty/graph/long_range_adjacency/long_range_adjacency.hxx
@@ -64,8 +64,8 @@ public:
         return edgeOffset_[z];
     }
 
-    std::size_t serializationSize() const {
-        std::size_t size = BaseType::serializationSize();
+    uint64_t serializationSize() const {
+        uint64_t size = BaseType::serializationSize();
         size += 2; // increase by 2 for the fields longRange and ignoreLabel
         size += shape_[0] * 2; // increase by slice vector sizes
         return size;