58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// { dg-options "-std=gnu++17" }
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// { dg-do run }
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// Copyright (C) 2016-2017 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <any>
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#include <testsuite_hooks.h>
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#include <vector>
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#include <tuple>
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struct combined {
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std::vector<int> v;
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std::tuple<int, int> t;
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template<class... Args>
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combined(std::initializer_list<int> il, Args&&... args)
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: v(il), t(std::forward<Args>(args)...)
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{
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}
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};
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int main()
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{
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const int i = 42;
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auto o = std::make_any<int>(i);
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int& i2 = std::any_cast<int&>(o);
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VERIFY( i2 == 42 );
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VERIFY( &i2 != &i );
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auto o2 = std::make_any<std::tuple<int, int>>(1, 2);
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std::tuple<int, int>& t = std::any_cast<std::tuple<int, int>&>(o2);
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VERIFY( std::get<0>(t) == 1 && std::get<1>(t) == 2);
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auto o3 = std::make_any<std::vector<int>>({42, 666});
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std::vector<int>& v = std::any_cast<std::vector<int>&>(o3);
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VERIFY(v[0] == 42 && v[1] == 666);
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auto o4 = std::make_any<combined>({42, 666});
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combined& c = std::any_cast<combined&>(o4);
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VERIFY(c.v[0] == 42 && c.v[1] == 666
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&& std::get<0>(c.t) == 0 && std::get<1>(c.t) == 0 );
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auto o5 = std::make_any<combined>({1, 2}, 3, 4);
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combined& c2 = std::any_cast<combined&>(o5);
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VERIFY(c2.v[0] == 1 && c2.v[1] == 2
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&& std::get<0>(c2.t) == 3 && std::get<1>(c2.t) == 4 );
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}
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