From 1f3980986d1ad2b34a03b0fd9df6562a24a80f3a Mon Sep 17 00:00:00 2001
From: joaquintides <joaquin@tid.es>
Date: Tue, 15 Aug 2023 16:48:37 +0200
Subject: [PATCH] avoided sign-compare warnings

---
 test/unordered/serialization_tests.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/unordered/serialization_tests.cpp b/test/unordered/serialization_tests.cpp
index 78380f3f..370ac6dd 100644
--- a/test/unordered/serialization_tests.cpp
+++ b/test/unordered/serialization_tests.cpp
@@ -15,6 +15,7 @@
 #include <boost/config.hpp>
 #include <boost/serialization/nvp.hpp>
 #include <boost/serialization/vector.hpp>
+#include <cstddef>
 
 #ifndef BOOST_NO_CXX11_HDR_RANDOM
 #include <random>
@@ -86,7 +87,7 @@ namespace {
       ia >> boost::serialization::make_nvp("iterators", v2);
       BOOST_TEST_EQ(v.size(), v2.size());
 
-      for (int i=0; i < v.size(); ++i) {
+      for (std::size_t i=0; i < v.size(); ++i) {
         iterator it = v[i];
         iterator it2 = v2[i];
         if (it == c.end()) {