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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
65 lines
1.2 KiB
C++
65 lines
1.2 KiB
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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// any::has_value() noexcept
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#include <any>
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#include <cassert>
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#include "any_helpers.h"
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int main()
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{
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using std::any;
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// noexcept test
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{
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any a;
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static_assert(noexcept(a.has_value()), "any::has_value() must be noexcept");
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}
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// empty
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{
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any a;
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assert(!a.has_value());
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a.reset();
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assert(!a.has_value());
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a = 42;
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assert(a.has_value());
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}
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// small object
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{
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small const s(1);
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any a(s);
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assert(a.has_value());
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a.reset();
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assert(!a.has_value());
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a = s;
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assert(a.has_value());
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}
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// large object
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{
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large const l(1);
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any a(l);
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assert(a.has_value());
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a.reset();
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assert(!a.has_value());
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a = l;
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assert(a.has_value());
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}
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}
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