88 lines
2.0 KiB
C++
88 lines
2.0 KiB
C++
// { dg-do run }
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// { dg-options "-std=gnu++17" }
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// Copyright (C) 2015-2017 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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// 24.8, container access [iterator.container]
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#include <iterator>
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#include <vector>
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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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int i[42];
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VERIFY(std::data(i) == i);
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VERIFY(std::size(i) == 42);
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VERIFY(!std::empty(i));
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}
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void
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test02()
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{
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static constexpr int i[42]{};
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constexpr auto d = std::data(i);
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static_assert(d == i);
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constexpr auto s = std::size(i);
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static_assert(s == 42);
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constexpr auto e = std::empty(i);
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static_assert(!e);
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}
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void
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test03()
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{
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std::initializer_list<int> il{1,2,3};
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VERIFY(std::data(il) == il.begin());
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VERIFY(std::size(il) == 3);
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VERIFY(!std::empty(il));
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std::initializer_list<int> il2{};
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VERIFY(std::size(il2) == 0);
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VERIFY(std::empty(il2));
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static constexpr std::initializer_list<int> il3{1,2,3};
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constexpr auto d = std::data(il3);
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static_assert(d == il3.begin());
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constexpr auto s = std::size(il3);
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static_assert(s == 3);
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constexpr auto e = std::empty(il3);
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static_assert(!e);
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}
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void
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test04()
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{
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std::vector<int> v{1,2,3};
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VERIFY(std::data(v) == v.data());
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VERIFY(std::size(v) == v.size());
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VERIFY(!std::empty(v));
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std::vector<int> v2{};
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VERIFY(std::size(v2) == v2.size());
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VERIFY(std::empty(v2));
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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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test02();
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test03();
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test04();
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}
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