cxx/test/utilities/meta/meta.unary/meta.unary.comp/union.pass.cpp

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//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // type_traits // union #include <type_traits> template <class T> void test_union_imp() { static_assert(!std::is_reference<T>::value, ""); static_assert(!std::is_arithmetic<T>::value, ""); static_assert(!std::is_fundamental<T>::value, ""); static_assert( std::is_object<T>::value, ""); static_assert(!std::is_scalar<T>::value, ""); static_assert( std::is_compound<T>::value, ""); static_assert(!std::is_member_pointer<T>::value, ""); } template <class T> void test_union() { test_union_imp<T>(); test_union_imp<const T>(); test_union_imp<volatile T>(); test_union_imp<const volatile T>(); } union Union { int _; double __; }; int main() { test_union<Union>(); }