third_party/llvm-project/libcxx/test/std/containers/sequences/vector/vector.capacity/swap.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// <vector>

// void swap(vector& x);

#include <vector>
#include <cassert>

#include "test_macros.h"
#include "min_allocator.h"
#include "asan_testing.h"

TEST_CONSTEXPR_CXX20 bool tests() {
    {
        std::vector<int> v1(100);
        std::vector<int> v2(200);
        assert(is_contiguous_container_asan_correct(v1));
        assert(is_contiguous_container_asan_correct(v2));
        v1.swap(v2);
        assert(v1.size() == 200);
        assert(v1.capacity() == 200);
        assert(is_contiguous_container_asan_correct(v1));
        assert(v2.size() == 100);
        assert(v2.capacity() == 100);
        assert(is_contiguous_container_asan_correct(v2));
    }
#if TEST_STD_VER >= 11
    {
        std::vector<int, min_allocator<int>> v1(100);
        std::vector<int, min_allocator<int>> v2(200);
        assert(is_contiguous_container_asan_correct(v1));
        assert(is_contiguous_container_asan_correct(v2));
        v1.swap(v2);
        assert(v1.size() == 200);
        assert(v1.capacity() == 200);
        assert(is_contiguous_container_asan_correct(v1));
        assert(v2.size() == 100);
        assert(v2.capacity() == 100);
        assert(is_contiguous_container_asan_correct(v2));
    }
    {
      std::vector<int, safe_allocator<int>> v1(100);
      std::vector<int, safe_allocator<int>> v2(200);
      assert(is_contiguous_container_asan_correct(v1));
      assert(is_contiguous_container_asan_correct(v2));
      v1.swap(v2);
      assert(v1.size() == 200);
      assert(v1.capacity() == 200);
      assert(is_contiguous_container_asan_correct(v1));
      assert(v2.size() == 100);
      assert(v2.capacity() == 100);
      assert(is_contiguous_container_asan_correct(v2));
    }
#endif

    return true;
}

int main(int, char**)
{
    tests();
#if TEST_STD_VER > 17
    static_assert(tests());
#endif
    return 0;
}