Add a test for uuid overalignment

test/CMakeLists.txt

@@ -19,6 +19,7 @@ boost_test(TYPE run SOURCES test_uuid_2.cpp)
 boost_test(TYPE run SOURCES test_uuid_3.cpp)
 
 boost_test(TYPE run SOURCES test_alignment.cpp)
+boost_test(TYPE run SOURCES test_alignment_2.cpp)
 boost_test(TYPE run SOURCES test_attribute_packed.cpp)
 boost_test(TYPE run SOURCES test_pragma_pack.cpp)
 boost_test(TYPE run SOURCES test_data.cpp)

test/Jamfile.v2

@@ -62,6 +62,7 @@ run test_uuid_3.cpp ;
 # test type properties
 
 run test_alignment.cpp ;
+run test_alignment_2.cpp ;
 run test_attribute_packed.cpp ;
 run test_pragma_pack.cpp ;
 run test_data.cpp ;

test/test_alignment_2.cpp

@@ -0,0 +1,22 @@
+// Copyright 2024 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/uuid/uuid.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <cstddef>
+
+using namespace boost::uuids;
+
+int main()
+{
+    BOOST_TEST_LE( alignof(uuid), alignof(std::max_align_t) );
+
+#if defined(__STDCPP_DEFAULT_NEW_ALIGNMENT__)
+
+    BOOST_TEST_LE( alignof(uuid), __STDCPP_DEFAULT_NEW_ALIGNMENT__ );
+
+#endif
+
+    return boost::report_errors();
+}