src/third_party/libc++/trunk/test/utilities/meta/meta.unary/meta.unary.prop/is_trivially_destructible.pass.cpp

   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_destructible
  13
  14 #include <type_traits>
  15
  16 template <class T>
  17 void test_is_trivially_destructible()
  18 {
  19     static_assert( std::is_trivially_destructible<T>::value, "");
  20     static_assert( std::is_trivially_destructible<const T>::value, "");
  21     static_assert( std::is_trivially_destructible<volatile T>::value, "");
  22     static_assert( std::is_trivially_destructible<const volatile T>::value, "");
  23 }
  24
  25 template <class T>
  26 void test_has_not_trivial_destructor()
  27 {
  28     static_assert(!std::is_trivially_destructible<T>::value, "");
  29     static_assert(!std::is_trivially_destructible<const T>::value, "");
  30     static_assert(!std::is_trivially_destructible<volatile T>::value, "");
  31     static_assert(!std::is_trivially_destructible<const volatile T>::value, "");
  32 }
  33
  34 class Empty
  35 {
  36 };
  37
  38 class NotEmpty
  39 {
  40     virtual ~NotEmpty();
  41 };
  42
  43 union Union {};
  44
  45 struct bit_zero
  46 {
  47     int :  0;
  48 };
  49
  50 class Abstract
  51 {
  52     virtual void foo() = 0;
  53 };
  54
  55 class AbstractDestructor
  56 {
  57     virtual ~AbstractDestructor() = 0;
  58 };
  59
  60 struct A
  61 {
  62     ~A();
  63 };
  64
  65 int main()
  66 {
  67     test_has_not_trivial_destructor<void>();
  68     test_has_not_trivial_destructor<A>();
  69     test_has_not_trivial_destructor<AbstractDestructor>();
  70     test_has_not_trivial_destructor<NotEmpty>();
  71
  72     test_is_trivially_destructible<Abstract>();
  73     test_is_trivially_destructible<int&>();
  74     test_is_trivially_destructible<Union>();
  75     test_is_trivially_destructible<Empty>();
  76     test_is_trivially_destructible<int>();
  77     test_is_trivially_destructible<double>();
  78     test_is_trivially_destructible<int*>();
  79     test_is_trivially_destructible<const int*>();
  80     test_is_trivially_destructible<char[3]>();
  81     test_is_trivially_destructible<char[3]>();
  82     test_is_trivially_destructible<bit_zero>();
  83 }