diff -r 5d0244c6fa3e -r 2c2304622981 tests/test_map.cpp
--- a/tests/test_map.cpp	Thu Apr 20 19:13:25 2023 +0200
+++ b/tests/test_map.cpp	Fri Apr 21 18:38:18 2023 +0200
@@ -74,7 +74,7 @@
         auto keyiter = cxMapIteratorKeys(map);
         std::unordered_set<std::string> keys;
         cx_foreach(CxHashKey*, elem, keyiter) {
-            keys.insert(std::string(elem->data.cstr, elem->len));
+            keys.insert(std::string(reinterpret_cast<char const*>(elem->data), elem->len));
         }
         EXPECT_EQ(keyiter.index, map->size);
         ASSERT_EQ(keys.size(), map->size);
@@ -103,7 +103,7 @@
         auto pairiter = cxMapIterator(map);
         std::unordered_map<std::string, std::string> pairs;
         cx_foreach(CxMapEntry*, entry, pairiter) {
-            pairs[std::string(entry->key->data.cstr, entry->key->len)] = std::string((char *) entry->value);
+            pairs[std::string(reinterpret_cast<char const*>(entry->key->data), entry->key->len)] = std::string((char *) entry->value);
         }
         EXPECT_EQ(pairiter.index, map->size);
         ASSERT_EQ(pairs.size(), refmap.size());
@@ -214,7 +214,7 @@
 
     auto iter = cxMapMutIterator(map);
     cx_foreach(CxMapEntry*, entry, iter) {
-        if (entry->key->data.cstr[4] % 2 == 1) cxIteratorFlagRemoval(iter);
+        if (reinterpret_cast<char const*>(entry->key->data)[4] % 2 == 1) cxIteratorFlagRemoval(iter);
     }
     EXPECT_EQ(map->size, 3);
     EXPECT_EQ(iter.index, map->size);
@@ -405,7 +405,7 @@
     {
         auto iter = cxMapMutIteratorKeys(map);
         cx_foreach(CxHashKey*, key, iter) {
-            if (key->data.cstr[4] == '1') cxIteratorFlagRemoval(iter);
+            if (reinterpret_cast<char const*>(key->data)[4] == '1') cxIteratorFlagRemoval(iter);
         }
     }
     {