| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // type_traits |
| |
| // is_trivially_copyable |
| |
| // These compilers have not implemented Core 2094 which makes volatile |
| // qualified types trivially copyable. |
| // XFAIL: clang-3, clang-4, apple-clang-6, apple-clang-7, apple-clang-8, apple-clang-9.0, gcc |
| |
| #include <type_traits> |
| #include <cassert> |
| #include "test_macros.h" |
| |
| template <class T> |
| void test_is_trivially_copyable() |
| { |
| static_assert( std::is_trivially_copyable<T>::value, ""); |
| static_assert( std::is_trivially_copyable<const T>::value, ""); |
| static_assert( std::is_trivially_copyable<volatile T>::value, ""); |
| static_assert( std::is_trivially_copyable<const volatile T>::value, ""); |
| #if TEST_STD_VER > 14 |
| static_assert( std::is_trivially_copyable_v<T>, ""); |
| static_assert( std::is_trivially_copyable_v<const T>, ""); |
| static_assert( std::is_trivially_copyable_v<volatile T>, ""); |
| static_assert( std::is_trivially_copyable_v<const volatile T>, ""); |
| #endif |
| } |
| |
| template <class T> |
| void test_is_not_trivially_copyable() |
| { |
| static_assert(!std::is_trivially_copyable<T>::value, ""); |
| static_assert(!std::is_trivially_copyable<const T>::value, ""); |
| static_assert(!std::is_trivially_copyable<volatile T>::value, ""); |
| static_assert(!std::is_trivially_copyable<const volatile T>::value, ""); |
| #if TEST_STD_VER > 14 |
| static_assert(!std::is_trivially_copyable_v<T>, ""); |
| static_assert(!std::is_trivially_copyable_v<const T>, ""); |
| static_assert(!std::is_trivially_copyable_v<volatile T>, ""); |
| static_assert(!std::is_trivially_copyable_v<const volatile T>, ""); |
| #endif |
| } |
| |
| struct A |
| { |
| int i_; |
| }; |
| |
| struct B |
| { |
| int i_; |
| ~B() {assert(i_ == 0);} |
| }; |
| |
| class C |
| { |
| public: |
| C(); |
| }; |
| |
| int main() |
| { |
| test_is_trivially_copyable<int> (); |
| test_is_trivially_copyable<const int> (); |
| test_is_trivially_copyable<A> (); |
| test_is_trivially_copyable<const A> (); |
| test_is_trivially_copyable<C> (); |
| |
| test_is_not_trivially_copyable<int&> (); |
| test_is_not_trivially_copyable<const A&> (); |
| test_is_not_trivially_copyable<B> (); |
| } |