38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
// Copyright (C) 2019-2020 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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// { dg-options "-std=gnu++17" }
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// { dg-do run { target c++17 } }
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#include <functional>
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#include <testsuite_hooks.h>
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void
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test01()
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{
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auto h1 = std::hash<std::nullptr_t>{}(nullptr);
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static_assert(std::is_same_v<decltype(h1), std::size_t>);
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auto h2 = std::hash<std::nullptr_t>{}(nullptr);
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VERIFY( h1 == h2 );
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}
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int
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main()
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{
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test01();
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}
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