diff options
Diffstat (limited to 'test/libcxx/utilities/variant/variant.variant/variant.assign/move.pass.cpp')
| -rw-r--r-- | test/libcxx/utilities/variant/variant.variant/variant.assign/move.pass.cpp | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/test/libcxx/utilities/variant/variant.variant/variant.assign/move.pass.cpp b/test/libcxx/utilities/variant/variant.variant/variant.assign/move.pass.cpp deleted file mode 100644 index fb6907dc5627..000000000000 --- a/test/libcxx/utilities/variant/variant.variant/variant.assign/move.pass.cpp +++ /dev/null @@ -1,197 +0,0 @@ -// -*- C++ -*- -//===----------------------------------------------------------------------===// -// -// 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. -// -//===----------------------------------------------------------------------===// - -// UNSUPPORTED: c++98, c++03, c++11, c++14 - -// The following compilers don't generate constexpr special members correctly. -// XFAIL: clang-3.5, clang-3.6, clang-3.7, clang-3.8 -// XFAIL: apple-clang-6, apple-clang-7, apple-clang-8.0 - -// <variant> - -// template <class ...Types> class variant; - -// variant& operator=(variant&&) noexcept(see below); - -#include <type_traits> -#include <variant> - -#include "test_macros.h" - -struct NTMoveAssign { - constexpr NTMoveAssign(int v) : value(v) {} - NTMoveAssign(const NTMoveAssign &) = default; - NTMoveAssign(NTMoveAssign &&) = default; - NTMoveAssign &operator=(const NTMoveAssign &that) = default; - NTMoveAssign &operator=(NTMoveAssign &&that) { - value = that.value; - that.value = -1; - return *this; - }; - int value; -}; - -static_assert(!std::is_trivially_move_assignable<NTMoveAssign>::value, ""); -static_assert(std::is_move_assignable<NTMoveAssign>::value, ""); - -struct TMoveAssign { - constexpr TMoveAssign(int v) : value(v) {} - TMoveAssign(const TMoveAssign &) = delete; - TMoveAssign(TMoveAssign &&) = default; - TMoveAssign &operator=(const TMoveAssign &) = delete; - TMoveAssign &operator=(TMoveAssign &&) = default; - int value; -}; - -static_assert(std::is_trivially_move_assignable<TMoveAssign>::value, ""); - -struct TMoveAssignNTCopyAssign { - constexpr TMoveAssignNTCopyAssign(int v) : value(v) {} - TMoveAssignNTCopyAssign(const TMoveAssignNTCopyAssign &) = default; - TMoveAssignNTCopyAssign(TMoveAssignNTCopyAssign &&) = default; - TMoveAssignNTCopyAssign &operator=(const TMoveAssignNTCopyAssign &that) { - value = that.value; - return *this; - } - TMoveAssignNTCopyAssign &operator=(TMoveAssignNTCopyAssign &&) = default; - int value; -}; - -static_assert(std::is_trivially_move_assignable_v<TMoveAssignNTCopyAssign>, ""); - -void test_move_assignment_sfinae() { - { - using V = std::variant<int, long>; - static_assert(std::is_trivially_move_assignable<V>::value, ""); - } - { - using V = std::variant<int, NTMoveAssign>; - static_assert(!std::is_trivially_move_assignable<V>::value, ""); - static_assert(std::is_move_assignable<V>::value, ""); - } - { - using V = std::variant<int, TMoveAssign>; - static_assert(std::is_trivially_move_assignable<V>::value, ""); - } - { - using V = std::variant<int, TMoveAssignNTCopyAssign>; - static_assert(std::is_trivially_move_assignable<V>::value, ""); - } -} - -template <typename T> struct Result { size_t index; T value; }; - -void test_move_assignment_same_index() { - { - struct { - constexpr Result<int> operator()() const { - using V = std::variant<int>; - V v(43); - V v2(42); - v = std::move(v2); - return {v.index(), std::get<0>(v)}; - } - } test; - constexpr auto result = test(); - static_assert(result.index == 0, ""); - static_assert(result.value == 42, ""); - } - { - struct { - constexpr Result<long> operator()() const { - using V = std::variant<int, long, unsigned>; - V v(43l); - V v2(42l); - v = std::move(v2); - return {v.index(), std::get<1>(v)}; - } - } test; - constexpr auto result = test(); - static_assert(result.index == 1, ""); - static_assert(result.value == 42l, ""); - } - { - struct { - constexpr Result<int> operator()() const { - using V = std::variant<int, TMoveAssign, unsigned>; - V v(std::in_place_type<TMoveAssign>, 43); - V v2(std::in_place_type<TMoveAssign>, 42); - v = std::move(v2); - return {v.index(), std::get<1>(v).value}; - } - } test; - constexpr auto result = test(); - static_assert(result.index == 1, ""); - static_assert(result.value == 42, ""); - } -} - -void test_move_assignment_different_index() { - { - struct { - constexpr Result<long> operator()() const { - using V = std::variant<int, long, unsigned>; - V v(43); - V v2(42l); - v = std::move(v2); - return {v.index(), std::get<1>(v)}; - } - } test; - constexpr auto result = test(); - static_assert(result.index == 1, ""); - static_assert(result.value == 42l, ""); - } - { - struct { - constexpr Result<long> operator()() const { - using V = std::variant<int, TMoveAssign, unsigned>; - V v(std::in_place_type<unsigned>, 43); - V v2(std::in_place_type<TMoveAssign>, 42); - v = std::move(v2); - return {v.index(), std::get<1>(v).value}; - } - } test; - constexpr auto result = test(); - static_assert(result.index == 1, ""); - static_assert(result.value == 42, ""); - } -} - - -template <size_t NewIdx, class ValueType> -constexpr bool test_constexpr_assign_extension_imp( - std::variant<long, void*, int>&& v, ValueType&& new_value) -{ - std::variant<long, void*, int> v2( - std::forward<ValueType>(new_value)); - const auto cp = v2; - v = std::move(v2); - return v.index() == NewIdx && - std::get<NewIdx>(v) == std::get<NewIdx>(cp); -} - -void test_constexpr_move_assignment_extension() { -#ifdef _LIBCPP_VERSION - using V = std::variant<long, void*, int>; - static_assert(std::is_trivially_copyable<V>::value, ""); - static_assert(std::is_trivially_move_assignable<V>::value, ""); - static_assert(test_constexpr_assign_extension_imp<0>(V(42l), 101l), ""); - static_assert(test_constexpr_assign_extension_imp<0>(V(nullptr), 101l), ""); - static_assert(test_constexpr_assign_extension_imp<1>(V(42l), nullptr), ""); - static_assert(test_constexpr_assign_extension_imp<2>(V(42l), 101), ""); -#endif -} - -int main() { - test_move_assignment_same_index(); - test_move_assignment_different_index(); - test_move_assignment_sfinae(); - test_constexpr_move_assignment_extension(); -} |
