[GNATS 26934] Spurious diagnostic for no default contructor exsits for class "coro_feature_tester"

[jhsedg]

Customer bug ID

cobalt/test/this_coro.test/this_coro.cpp

Description

​cpfe -DTEST_NUMBER=1 --c++20 --gnu_version=120100 -w -tused Test_name.c
​"../libs/cobalt/test/this_coro.cpp", line 69: error: no default constructor
​ exists for class "coro_feature_tester"
​ static void promise_cancellation_base_impl(coro_feature_tester * this_); struct promise_cancellation_base : public BOOST_AUTO_TEST_CASE_FIXTUR
​E { void test_method(); }; static void promise_cancellation_base_invoker() { ::boost::unit_test::unit_test_log.set_checkpoint( ::boost::unit_tes
​t::const_string( "../libs/cobalt/test/this_coro.cpp", sizeof( "../libs/cobalt/test/this_coro.cpp" ) - 1 ), static_caststd::size_t(69), (::boos
​t::wrap_stringstream().ref() << '"' << "promise_cancellation_base" << "" fixture ctor").str() ); promise_cancellation_base t; ::boost::unit_tes
​t::unit_test_log.set_checkpoint( ::boost::unit_test::const_string( "../libs/cobalt/test/this_coro.cpp", sizeof( "../libs/cobalt/test/this_coro.c
​pp" ) - 1 ), static_caststd::size_t(69), (::boost::wrap_stringstream().ref() << '"' << "promise_cancellation_base" << "" fixture setup").str(
​) ); boost::unit_test::setup_conditional(t); ::boost::unit_test::unit_test_log.set_checkpoint( ::boost::unit_test::const_string( "../libs/cobalt
​/test/this_coro.cpp", sizeof( "../libs/cobalt/test/this_coro.cpp" ) - 1 ), static_caststd::size_t(69), (::boost::wrap_stringstream().ref() <<
​'"' << "promise_cancellation_base" << "" test entry").str() ); t.test_method(); ::boost::unit_test::unit_test_log.set_checkpoint( ::boost::unit
​_test::const_string( "../libs/cobalt/test/this_coro.cpp", sizeof( "../libs/cobalt/test/this_coro.cpp" ) - 1 ), static_caststd::size_t(69), (::
​boost::wrap_stringstream().ref() << '"' << "promise_cancellation_base" << "" fixture teardown").str() ); boost::unit_test::teardown_conditional
​(t); ::boost::unit_test::unit_test_log.set_checkpoint( ::boost::unit_test::const_string( "../libs/cobalt/test/this_coro.cpp", sizeof( "../libs/c
​obalt/test/this_coro.cpp" ) - 1 ), static_caststd::size_t(69), (::boost::wrap_stringstream().ref() << '"' << "promise_cancellation_base" << "
​" fixture dtor").str() ); } struct promise_cancellation_base_id {}; static boost::unit_test::ut_detail::auto_test_unit_registrar promise_cancell
​ation_base_registrar691 attribute((unused))( boost::unit_test::make_test_case( &promise_cancellation_base_invoker, "promise_cancellation
​_base", "../libs/cobalt/test/this_coro.cpp", 69 ), boost::unit_test::decorator::collector_t::instance() ); void promise_cancellation_base::test_
​method() { promise_cancellation_base_impl(nullptr); } static void promise_cancellation_base_impl(coro_feature_tester * this_)

Notes

​mjh, 2024-01-12:
​
​Reduced test in gnats/26934a.C.
​
​ellen, 2024-01-08:
​We will try to get a reduced test case.