1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // type_traits 11 12 // is_trivially_copyable 13 14 #include <type_traits> 15 #include <cassert> 16 17 template <class T> 18 void test_is_trivially_copyable() 19 { 20 static_assert( std::is_trivially_copyable<T>::value, ""); 21 static_assert( std::is_trivially_copyable<const T>::value, ""); 22 static_assert(!std::is_trivially_copyable<volatile T>::value, ""); 23 static_assert(!std::is_trivially_copyable<const volatile T>::value, ""); 24 } 25 26 template <class T> 27 void test_is_not_trivially_copyable() 28 { 29 static_assert(!std::is_trivially_copyable<T>::value, ""); 30 static_assert(!std::is_trivially_copyable<const T>::value, ""); 31 static_assert(!std::is_trivially_copyable<volatile T>::value, ""); 32 static_assert(!std::is_trivially_copyable<const volatile T>::value, ""); 33 } 34 35 struct A 36 { 37 int i_; 38 }; 39 40 struct B 41 { 42 int i_; 43 ~B() {assert(i_ == 0);} 44 }; 45 46 class C 47 { 48 public: 49 C(); 50 }; 51 52 int main() 53 { 54 test_is_trivially_copyable<int> (); 55 test_is_trivially_copyable<const int> (); 56 test_is_trivially_copyable<A> (); 57 test_is_trivially_copyable<const A> (); 58 test_is_trivially_copyable<C> (); 59 60 test_is_not_trivially_copyable<int&> (); 61 test_is_not_trivially_copyable<const A&> (); 62 test_is_not_trivially_copyable<B> (); 63 } 64
