| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // <experimental/any> |
| |
| // any& operator=(any &&); |
| |
| // Test move assignment. |
| |
| #include <experimental/any> |
| #include <cassert> |
| |
| #include "any_helpers.h" |
| #include "test_macros.h" |
| |
| using std::experimental::any; |
| using std::experimental::any_cast; |
| |
| template <class LHS, class RHS> |
| void test_move_assign() { |
| assert(LHS::count == 0); |
| assert(RHS::count == 0); |
| { |
| LHS const s1(1); |
| any a(s1); |
| RHS const s2(2); |
| any a2(s2); |
| |
| assert(LHS::count == 2); |
| assert(RHS::count == 2); |
| |
| a = std::move(a2); |
| |
| assert(LHS::count == 1); |
| assert(RHS::count == 2); |
| |
| assertContains<RHS>(a, 2); |
| assertEmpty<RHS>(a2); |
| } |
| assert(LHS::count == 0); |
| assert(RHS::count == 0); |
| } |
| |
| template <class LHS> |
| void test_move_assign_empty() { |
| assert(LHS::count == 0); |
| { |
| any a; |
| any a2((LHS(1))); |
| |
| assert(LHS::count == 1); |
| |
| a = std::move(a2); |
| |
| assert(LHS::count == 1); |
| |
| assertContains<LHS>(a, 1); |
| assertEmpty<LHS>(a2); |
| } |
| assert(LHS::count == 0); |
| { |
| any a((LHS(1))); |
| any a2; |
| |
| assert(LHS::count == 1); |
| |
| a = std::move(a2); |
| |
| assert(LHS::count == 0); |
| |
| assertEmpty<LHS>(a); |
| assertEmpty(a2); |
| } |
| assert(LHS::count == 0); |
| } |
| |
| void test_move_assign_noexcept() { |
| any a1; |
| any a2; |
| static_assert( |
| noexcept(a1 = std::move(a2)) |
| , "any & operator=(any &&) must be noexcept" |
| ); |
| } |
| |
| int main() { |
| test_move_assign_noexcept(); |
| test_move_assign<small1, small2>(); |
| test_move_assign<large1, large2>(); |
| test_move_assign<small, large>(); |
| test_move_assign<large, small>(); |
| test_move_assign_empty<small>(); |
| test_move_assign_empty<large>(); |
| } |