From 5f05b1c4356d7d82ee5531922ed5269aa9b21832 Mon Sep 17 00:00:00 2001
From: qicosmos <qicosmos@163.com>
Date: Mon, 27 May 2024 20:44:59 +0800
Subject: [PATCH] fix

---
 test/test_pb.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/test_pb.cpp b/test/test_pb.cpp
index 1dadf092..58b6c381 100644
--- a/test/test_pb.cpp
+++ b/test/test_pb.cpp
@@ -6,6 +6,8 @@
 #include "iguana/pb_reader.hpp"
 #include "iguana/pb_writer.hpp"
 
+#if defined(__clang__) || defined(_MSC_VER) || \
+    (defined(__GNUC__) && __GNUC__ > 8)
 void print_hex_str(const std::string &str) {
   std::ostringstream oss;
   oss << std::hex << std::setfill('0');
@@ -616,6 +618,7 @@ TEST_CASE("test variant") {
     CHECK(std::get<double>(st2.y) == 3.88);
   }
 }
+#endif
 
 DOCTEST_MSVC_SUPPRESS_WARNING_WITH_PUSH(4007)
 int main(int argc, char **argv) { return doctest::Context(argc, argv).run(); }