union.pass.cpp revision f5256e16dfc425c1d466f6308d4026d529ce9e0b
1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// type_traits 11 12// union 13 14#include <type_traits> 15 16template <class T> 17void test_union_imp() 18{ 19 static_assert(!std::is_reference<T>::value, ""); 20 static_assert(!std::is_arithmetic<T>::value, ""); 21 static_assert(!std::is_fundamental<T>::value, ""); 22 static_assert( std::is_object<T>::value, ""); 23 static_assert(!std::is_scalar<T>::value, ""); 24 static_assert( std::is_compound<T>::value, ""); 25 static_assert(!std::is_member_pointer<T>::value, ""); 26} 27 28template <class T> 29void test_union() 30{ 31 test_union_imp<T>(); 32 test_union_imp<const T>(); 33 test_union_imp<volatile T>(); 34 test_union_imp<const volatile T>(); 35} 36 37union Union 38{ 39 int _; 40 double __; 41}; 42 43int main() 44{ 45 test_union<Union>(); 46} 47