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- // Copyright (C) 2018 Tobias Loew
- // Use, modification and distribution is subject to the Boost Software
- // License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/config.hpp>
- #include <boost/config/pragma_message.hpp>
- #if defined(BOOST_NO_CXX11_LAMBDAS)
- BOOST_PRAGMA_MESSAGE("Skipping test due to BOOST_NO_CXX11_LAMBDAS")
- int main() {}
- #elif defined(BOOST_NO_CXX11_AUTO_DECLARATIONS)
- BOOST_PRAGMA_MESSAGE("Skipping test due to BOOST_NO_CXX11_AUTO_DECLARATIONS")
- int main() {}
- #else
- #include <boost/typeof/typeof.hpp>
- #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
- namespace detail {
- template<class T> inline T& deref(T& r) {
- return r;
- }
- template<class T>
- struct wrapper {
- typedef T type;
- };
- template<class T> wrapper<T> wrap(T&);
- };
- BOOST_TYPEOF_REGISTER_TEMPLATE(::detail::wrapper, 1)
- void test_typeof_in_lambda() {
- // Visual Studio 2015 (BOOST_MSVC == 1900) had an internal compiler error with Boost 1.65 and 1.66 when using BOOST_SCOPE_EXIT inside a lambda
- // the error was due to a change of include in boost/typeof/typeof.hpp (<boost/typeof/decltype.hpp> instead of <boost/typeof/native.hpp>)
- // This test is an more or less minimal extract from the BOOST_SCOPE_EXIT macro expansions
-
- // worked also with VS 2015 in version 1.65/1.66
- int n;
- typedef BOOST_TYPEOF(::detail::wrap(::detail::deref(n))) n_type_wrapped;
- typedef n_type_wrapped::type n_type;
- int test;
- auto check_property = [&n,&test]() {
- // internal compiler error with VS 2015 in version 1.65/1.66
- // minimal extract from
- //BOOST_SCOPE_EXIT(test) {
- // test = 42;
- //}BOOST_SCOPE_EXIT_END
- // this compiles always (as long as the one before outside the lambda has the same name)
- typedef BOOST_TYPEOF(::detail::wrap(::detail::deref(n))) n_type_wrapped;
- typedef n_type_wrapped::type n_type;
- // this fails with internal compiler error with VS 2015 in version 1.65/1.66
- typedef BOOST_TYPEOF(::detail::wrap(::detail::deref(test))) test_type_wrapped;
- typedef test_type_wrapped::type test_type;
- };
- }
- int main() {
- test_typeof_in_lambda();
- return 0;
- }
- #endif
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