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libcxx_old/test/std/utilities/any/any.nonmembers/swap.pass.cpp

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1018 B
C++

//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11, c++14
// XFAIL: dylib-has-no-bad_any_cast && !libcpp-no-exceptions
// <any>
// void swap(any &, any &) noexcept
// swap(...) just wraps any::swap(...). That function is tested elsewhere.
#include <any>
#include <cassert>
#include "test_macros.h"
using std::any;
using std::any_cast;
int main(int, char**)
{
{ // test noexcept
any a;
static_assert(noexcept(swap(a, a)), "swap(any&, any&) must be noexcept");
}
{
any a1(1);
any a2(2);
swap(a1, a2);
assert(any_cast<int>(a1) == 2);
assert(any_cast<int>(a2) == 1);
}
return 0;
}