74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// Copyright (C) 2020-2025 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-do run { target c++20 } }
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#include <algorithm>
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#include <vector>
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#include <testsuite_hooks.h>
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#include <testsuite_iterators.h>
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using __gnu_test::test_container;
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using __gnu_test::test_range;
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using __gnu_test::input_iterator_wrapper;
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using __gnu_test::output_iterator_wrapper;
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namespace ranges = std::ranges;
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void
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test01()
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{
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int x[] = {1,2,3,4,5};
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for (int i = 0; i <= 5; i++)
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for (int j = 0; j <= 5; j++)
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{
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int z[10];
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test_range<int, input_iterator_wrapper> rx(x, x+i), ry(x, x+j);
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test_range<int, output_iterator_wrapper> rz(z, z+i+j);
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auto [in1,in2,out] = ranges::merge(rx, ry, rz.begin());
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VERIFY( in1 == rx.end() );
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VERIFY( in2 == ry.end() );
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VERIFY( out == rz.end() );
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std::vector<int> v(x, x+i);
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v.insert(v.end(), x, x+j);
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ranges::sort(v);
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VERIFY( ranges::equal(v.begin(), v.end(), z, z+i+j) );
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}
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}
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constexpr bool
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test02()
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{
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int x[] = {-1,-3,-5};
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int y[] = {2,4,6};
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int z[6];
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ranges::merge(x, x+3, y, y+3, z,
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ranges::greater{}, {}, [] (int a) { return -a; });
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const int w[6] = {-1, 2, -3, 4, -5, 6};
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return ranges::equal(w, z);
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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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static_assert(test02());
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}
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