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[libc++][ABI BREAK] Make std::pair trivially copyable if its members are
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libcxx/test/libcxx/utilities/utility/pairs/pairs.pair/trivially_copyable.compile.pass.cpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| //===----------------------------------------------------------------------===// | ||
| // | ||
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| // See https://llvm.org/LICENSE.txt for license information. | ||
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
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| // UNSUPPORTED: gcc && (c++11 || c++14 || c++17) | ||
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| #include <type_traits> | ||
| #include <utility> | ||
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| struct trivially_copyable { | ||
| int arr[4]; | ||
| }; | ||
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| struct trivially_copyable_no_assignment { | ||
| int arr[4]; | ||
| trivially_copyable_no_assignment& operator=(const trivially_copyable_no_assignment&) = delete; | ||
| }; | ||
| static_assert(std::is_trivially_copyable<trivially_copyable_no_assignment>::value, ""); | ||
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| static_assert(std::is_trivially_copy_constructible<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
| static_assert(std::is_trivially_move_constructible<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copy_assignable<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
| static_assert(!std::is_trivially_move_assignable<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
| static_assert(std::is_trivially_destructible<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
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| struct trivially_copyable_no_construction { | ||
| int arr[4]; | ||
| trivially_copyable_no_construction() = default; | ||
| trivially_copyable_no_construction(const trivially_copyable_no_construction&) = delete; | ||
| trivially_copyable_no_construction& operator=(const trivially_copyable_no_construction&) = default; | ||
| }; | ||
| static_assert(std::is_trivially_copyable<trivially_copyable_no_construction>::value, ""); | ||
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| #ifdef _LIBCPP_ABI_TRIVIALLY_COPYABLE_PAIR | ||
| static_assert(!std::is_trivially_copy_constructible<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(!std::is_trivially_move_constructible<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(std::is_trivially_copy_assignable<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(std::is_trivially_move_assignable<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(std::is_trivially_destructible<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| #else // _LIBCPP_ABI_TRIVIALLY_COPYABLE_PAIR | ||
| static_assert(!std::is_trivially_copy_constructible<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(!std::is_trivially_move_constructible<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copy_assignable<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(!std::is_trivially_move_assignable<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| static_assert(std::is_trivially_destructible<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
| #endif // _LIBCPP_ABI_TRIVIALLY_COPYABLE_PAIR | ||
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| static_assert(!std::is_trivially_copyable<std::pair<int&, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<int, int&> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<int&, int&> >::value, ""); | ||
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| #ifdef _LIBCPP_ABI_TRIVIALLY_COPYABLE_PAIR | ||
| static_assert(std::is_trivially_copyable<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_copyable<std::pair<int, char> >::value, ""); | ||
| static_assert(std::is_trivially_copyable<std::pair<char, int> >::value, ""); | ||
| static_assert(std::is_trivially_copyable<std::pair<std::pair<char, char>, int> >::value, ""); | ||
| static_assert(std::is_trivially_copyable<std::pair<trivially_copyable, int> >::value, ""); | ||
| static_assert(std::is_trivially_copyable<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
| static_assert(std::is_trivially_copyable<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
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| static_assert(std::is_trivially_copy_constructible<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_move_constructible<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_copy_assignable<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_move_assignable<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_destructible<std::pair<int, int> >::value, ""); | ||
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| #else // _LIBCPP_ABI_TRIVIALLY_COPYABLE_PAIR | ||
| static_assert(!std::is_trivially_copyable<std::pair<int, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<int, char> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<char, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<std::pair<char, char>, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<trivially_copyable, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<trivially_copyable_no_assignment, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copyable<std::pair<trivially_copyable_no_construction, int> >::value, ""); | ||
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| static_assert(std::is_trivially_copy_constructible<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_move_constructible<std::pair<int, int> >::value, ""); | ||
| static_assert(!std::is_trivially_copy_assignable<std::pair<int, int> >::value, ""); | ||
| static_assert(!std::is_trivially_move_assignable<std::pair<int, int> >::value, ""); | ||
| static_assert(std::is_trivially_destructible<std::pair<int, int> >::value, ""); | ||
| #endif // _LIBCPP_ABI_TRIVIALLY_COPYABLE_PAIR |