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e739d54f86
Summary: This patch adds std::any by moving/adapting <experimental/any>. This patch also implements the std::any parts of p0032r3 (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0032r3.pdf) and LWG 2509 (http://cplusplus.github.io/LWG/lwg-defects.html#2509). I plan to push it in a day or two if there are no comments. Reviewers: mclow.lists, EricWF Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D22733 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@278310 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
893 B
C++
41 lines
893 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// <any>
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// void swap(any &, any &) noexcept
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// swap(...) just wraps any::swap(...). That function is tested elsewhere.
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#include <any>
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#include <cassert>
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using std::any;
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using std::any_cast;
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int main()
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{
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{ // test noexcept
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any a;
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static_assert(noexcept(swap(a, a)), "swap(any&, any&) must be noexcept");
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}
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{
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any a1(1);
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any a2(2);
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swap(a1, a2);
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assert(any_cast<int>(a1) == 2);
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assert(any_cast<int>(a2) == 1);
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}
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}
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