Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // type_traits |
| 11 | |
| 12 | // is_standard_layout |
| 13 | |
| 14 | #include <type_traits> |
| 15 | |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 16 | template <class T> |
| 17 | void test_is_standard_layout() |
| 18 | { |
| 19 | static_assert( std::is_standard_layout<T>::value, ""); |
| 20 | static_assert( std::is_standard_layout<const T>::value, ""); |
| 21 | static_assert( std::is_standard_layout<volatile T>::value, ""); |
| 22 | static_assert( std::is_standard_layout<const volatile T>::value, ""); |
| 23 | } |
| 24 | |
| 25 | template <class T> |
| 26 | void test_is_not_standard_layout() |
| 27 | { |
| 28 | static_assert(!std::is_standard_layout<T>::value, ""); |
| 29 | static_assert(!std::is_standard_layout<const T>::value, ""); |
| 30 | static_assert(!std::is_standard_layout<volatile T>::value, ""); |
| 31 | static_assert(!std::is_standard_layout<const volatile T>::value, ""); |
| 32 | } |
| 33 | |
Howard Hinnant | 6063ec1 | 2011-05-13 14:08:16 +0000 | [diff] [blame] | 34 | template <class T1, class T2> |
| 35 | struct pair |
| 36 | { |
| 37 | T1 first; |
| 38 | T2 second; |
| 39 | }; |
| 40 | |
Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 41 | int main() |
| 42 | { |
Marshall Clow | 933afa9 | 2013-07-04 00:10:01 +0000 | [diff] [blame] | 43 | test_is_standard_layout<int> (); |
| 44 | test_is_standard_layout<int[3]> (); |
| 45 | test_is_standard_layout<pair<int, double> > (); |
| 46 | |
| 47 | test_is_not_standard_layout<int&> (); |
Howard Hinnant | c52f43e | 2010-08-22 00:59:46 +0000 | [diff] [blame] | 48 | } |