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- // Copyright (C) 2020-2022 Free Software Foundation, Inc.
- //
- // This file is part of the GNU ISO C++ Library. This library is free
- // software; you can redistribute it and/or modify it under the
- // terms of the GNU General Public License as published by the
- // Free Software Foundation; either version 3, or (at your option)
- // any later version.
- // This library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- // You should have received a copy of the GNU General Public License along
- // with this library; see the file COPYING3. If not see
- // <http://www.gnu.org/licenses/>.
- // { dg-options "-std=gnu++2a" }
- // { dg-do run { target c++2a } }
- #include <algorithm>
- #include <vector>
- #include <testsuite_hooks.h>
- #include <testsuite_iterators.h>
- using __gnu_test::test_container;
- using __gnu_test::test_range;
- using __gnu_test::input_iterator_wrapper;
- using __gnu_test::input_iterator_wrapper_nocopy;
- using __gnu_test::output_iterator_wrapper;
- using __gnu_test::forward_iterator_wrapper;
- namespace ranges = std::ranges;
- struct X
- {
- int i;
- int moved = 0;
- constexpr X() : i(0) { }
- constexpr X(int a) : i(a) { }
- constexpr X(const X&) = delete;
- constexpr X& operator=(const X&) = delete;
- constexpr X(X&& other)
- {
- *this = std::move(other);
- }
- constexpr X&
- operator=(X&& other)
- {
- other.moved++;
- i = other.i;
- return *this;
- }
- friend constexpr bool
- operator==(const X& a, const X& b)
- { return a.i == b.i; }
- };
- void
- test01()
- {
- {
- X x[7] = { 1, 2, 3, 4, 5, 6, 7 };
- X y[7] = { 0, 0, 0, 0, 0, 0, 0 };
- X z[7] = { 1, 2, 3, 4, 5, 6, 7 };
- auto [in, out] = ranges::move(x, y);
- VERIFY( ranges::equal(x, y) && in == x+7 && out == y+7 );
- VERIFY( ranges::equal(x, z) );
- }
- {
- int x[3] = { 1, 2, 3 };
- char y[4] = { 0 };
- int z[3] = { 1, 2, 3 };
- test_container<int, forward_iterator_wrapper> cx(x);
- test_container<char, forward_iterator_wrapper> cy(y);
- auto [in, out] = ranges::move(cx, cy.begin());
- VERIFY( ranges::equal(x, x+3, y, y+3) && in.ptr == x+3 && out.ptr == y+3 );
- VERIFY( ranges::equal(x, z) );
- }
- {
- char x[3] = { 1, 2, 3 };
- int y[4] = { 0 };
- int z[3] = { 1, 2, 3 };
- test_range<char, input_iterator_wrapper> cx(x);
- test_range<int, output_iterator_wrapper> cy(y);
- auto [in, out] = ranges::move(cx, ranges::begin(cy));
- VERIFY( ranges::equal(x, x+3, y, y+3) && in.ptr == x+3 && out.ptr == y+3 );
- VERIFY( ranges::equal(x, z) );
- }
- {
- std::vector<char> x= {1,2,3};
- std::vector<int> y(3);
- const int z[3] = { 1, 2, 3 };
- auto [in, out] = ranges::move(x, ranges::begin(y));
- VERIFY( in == x.begin()+3 );
- VERIFY( out == y.begin()+3 );
- VERIFY( ranges::equal(y, z) && ranges::equal(x, z) );
- }
- {
- std::vector<int> x = {1,2,3};
- std::vector<int> y(3);
- const int z[3] = { 1, 2, 3 };
- auto [in, out] = ranges::move(x, ranges::begin(y));
- VERIFY( in == x.begin()+3 );
- VERIFY( out == y.begin()+3 );
- VERIFY( ranges::equal(y, z) && ranges::equal(x, z) );
- }
- {
- std::vector<int> x = {1,2,3};
- std::vector<int> y(3);
- const int z[3] = { 1, 2, 3 };
- auto [in,out] = ranges::move(make_reverse_iterator(x.end()),
- make_reverse_iterator(x.begin()),
- make_reverse_iterator(y.end()));
- VERIFY( in.base() == x.begin()+3 );
- VERIFY( out.base() == y.begin() );
- VERIFY( ranges::equal(y, z) && ranges::equal(x, z) );
- }
- {
- std::vector<char> x = {1,2,3};
- std::vector<int> y(3);
- const int z[3] = { 1, 2, 3 };
- auto [in,out] = ranges::move(make_reverse_iterator(x.end()),
- make_reverse_iterator(x.begin()),
- make_reverse_iterator(y.end()));
- VERIFY( in.base() == x.begin()+3 );
- VERIFY( out.base() == y.begin() );
- VERIFY( ranges::equal(y, z) && ranges::equal(x, z) );
- }
- }
- void
- test02()
- {
- X x[] = { {2}, {2}, {6}, {8}, {10} };
- X y[] = { {2}, {6}, {8}, {10}, {11}, {2} };
- X z[] = { {2}, {2}, {6}, {8}, {10} };
- auto [in, out] = ranges::move(x, y);
- VERIFY( ranges::equal(x, x+5, y, y+5) );
- VERIFY( in == x+5 );
- VERIFY( out == y+5 );
- VERIFY( y[5].i == 2 );
- VERIFY( ranges::equal(x, z) );
- VERIFY( ranges::count(x, 1, &X::moved) == 5 );
- VERIFY( ranges::count(y, 0, &X::moved) == 6 );
- }
- constexpr bool
- test03()
- {
- bool ok = true;
- X x[] = { {2}, {2}, {6}, {8}, {10} };
- X y[] = { {2}, {6}, {8}, {10}, {11}, {2} };
- X z[] = { {2}, {2}, {6}, {8}, {10} };
- auto [in, out] = ranges::move(x, y);
- ok &= ranges::equal(x, x+5, y, y+5);
- ok &= (in == x+5);
- ok &= (out == y+5);
- ok &= (y[5].i == 2);
- ok &= ranges::equal(x, z);
- ok &= ranges::count(x, 1, &X::moved) == 5;
- ok &= ranges::count(y, 0, &X::moved) == 6;
- return ok;
- }
- void
- test04()
- {
- X x[] = { {2}, {2}, {6}, {8}, {10} };
- X y[] = { {2}, {6}, {8}, {10}, {11}, {2} };
- X z[] = { {2}, {2}, {6}, {8}, {10} };
- test_range<X, input_iterator_wrapper> rx(x);
- auto [in, out] = ranges::move(std::move_iterator{ranges::begin(rx)},
- std::move_sentinel{ranges::end(rx)},
- ranges::begin(y));
- VERIFY( ranges::equal(x, x+5, y, y+5) );
- VERIFY( std::move(in).base().ptr == x+5 );
- VERIFY( out == y+5 );
- VERIFY( y[5].i == 2 );
- VERIFY( ranges::equal(x, z) );
- VERIFY( ranges::count(x, 1, &X::moved) == 5 );
- VERIFY( ranges::count(y, 0, &X::moved) == 6 );
- }
- void
- test05()
- {
- // PR libstdc++/101599
- int x[] = {1,2,3};
- test_range<int, input_iterator_wrapper_nocopy> rx(x);
- std::vector<int> v(4, 0);
- ranges::move(rx, v.begin());
- VERIFY( ranges::equal(v, (int[]){1,2,3,0}) );
- }
- int
- main()
- {
- test01();
- test02();
- static_assert(test03());
- test04();
- test05();
- }
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