Eric Fiselier 7175a07921 [libcxx] Add <experimental/any> v2.
Summary:
This patch adds the second revision of <experimental/any>. 
I've been working from the LFTS draft found at this link. https://rawgit.com/cplusplus/fundamentals-ts/v1/fundamentals-ts.html#any



Reviewers: danalbert, jroelofs, K-ballo, mclow.lists

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D6762

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@243728 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-31 02:24:58 +00:00

41 lines
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//===----------------------------------------------------------------------===//
//
// 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>
// void swap(any &, any &) noexcept
// swap(...) just wraps any::swap(...). That function is tested elsewhere.
#include <experimental/any>
#include <cassert>
using std::experimental::any;
using std::experimental::any_cast;
int main()
{
{ // 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);
}
}