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// UNSUPPORTED: c++03, c++11, c++14
10
11// <any>
12
13// void swap(any &, any &) noexcept
14
15// swap(...) just wraps any::swap(...). That function is tested elsewhere.
16
17#include <any>
18#include <cassert>
19
20#include "test_macros.h"
21
22int main(int, char**)
23{
24
25 { // test noexcept
26 std::any a;
27 static_assert(noexcept(swap(x&: a, y&: a)), "swap(any&, any&) must be noexcept");
28 }
29 {
30 std::any a1 = 1;
31 std::any a2 = 2;
32
33 swap(x&: a1, y&: a2);
34
35 assert(std::any_cast<int>(a1) == 2);
36 assert(std::any_cast<int>(a2) == 1);
37 }
38
39 return 0;
40}
41

source code of libcxx/test/std/utilities/any/any.nonmembers/swap.pass.cpp