| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | // type_traits |
| 10 | |
| 11 | // is_copy_constructible |
| 12 | |
| 13 | #include <type_traits> |
| 14 | #include "test_macros.h" |
| 15 | |
| 16 | template <class T> |
| 17 | void test_is_copy_constructible() |
| 18 | { |
| 19 | static_assert( std::is_copy_constructible<T>::value, ""); |
| 20 | #if TEST_STD_VER > 14 |
| 21 | static_assert( std::is_copy_constructible_v<T>, ""); |
| 22 | #endif |
| 23 | } |
| 24 | |
| 25 | template <class T> |
| 26 | void test_is_not_copy_constructible() |
| 27 | { |
| 28 | static_assert(!std::is_copy_constructible<T>::value, ""); |
| 29 | #if TEST_STD_VER > 14 |
| 30 | static_assert(!std::is_copy_constructible_v<T>, ""); |
| 31 | #endif |
| 32 | } |
| 33 | |
| 34 | class Empty |
| 35 | { |
| 36 | }; |
| 37 | |
| 38 | class NotEmpty |
| 39 | { |
| 40 | public: |
| 41 | virtual ~NotEmpty(); |
| 42 | }; |
| 43 | |
| 44 | union Union {}; |
| 45 | |
| 46 | struct bit_zero |
| 47 | { |
| 48 | int : 0; |
| 49 | }; |
| 50 | |
| 51 | class Abstract |
| 52 | { |
| 53 | public: |
| 54 | virtual ~Abstract() = 0; |
| 55 | }; |
| 56 | |
| 57 | struct A |
| 58 | { |
| 59 | A(const A&); |
| 60 | }; |
| 61 | |
| 62 | class B |
| 63 | { |
| 64 | B(const B&); |
| 65 | }; |
| 66 | |
| 67 | struct C |
| 68 | { |
| 69 | C(C&); // not const |
| 70 | void operator=(C&); // not const |
| 71 | }; |
| 72 | |
| 73 | int main(int, char**) |
| 74 | { |
| 75 | test_is_copy_constructible<A>(); |
| 76 | test_is_copy_constructible<int&>(); |
| 77 | test_is_copy_constructible<Union>(); |
| 78 | test_is_copy_constructible<Empty>(); |
| 79 | test_is_copy_constructible<int>(); |
| 80 | test_is_copy_constructible<double>(); |
| 81 | test_is_copy_constructible<int*>(); |
| 82 | test_is_copy_constructible<const int*>(); |
| 83 | test_is_copy_constructible<NotEmpty>(); |
| 84 | test_is_copy_constructible<bit_zero>(); |
| 85 | |
| 86 | test_is_not_copy_constructible<char[3]>(); |
| 87 | test_is_not_copy_constructible<char[]>(); |
| 88 | test_is_not_copy_constructible<void>(); |
| 89 | test_is_not_copy_constructible<Abstract>(); |
| 90 | test_is_not_copy_constructible<C>(); |
| 91 | #if TEST_STD_VER >= 11 |
| 92 | test_is_not_copy_constructible<B>(); |
| 93 | #endif |
| 94 | |
| 95 | return 0; |
| 96 | } |
| 97 |