//===----------------------------------------------------------------------===//
//
// 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>

// template <class T, class Alloc>
//   void swap(vector<T,Alloc>& x, vector<T,Alloc>& y);

#include <vector>
#include <iterator>
#include <cassert>
#include "test_macros.h"
#include "test_allocator.h"
#include "min_allocator.h"
#include "asan_testing.h"

template <typename A>
TEST_CONSTEXPR_CXX20 void test_with_allocator() {
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int, A> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]));
    std::vector<int, A> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert((c1 == std::vector<int, A>(a2, a2 + sizeof(a2) / sizeof(a2[0]))));
    assert((c2 == std::vector<int, A>(a1, a1 + sizeof(a1) / sizeof(a1[0]))));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int, A> c1(a1, a1);
    std::vector<int, A> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert((c1 == std::vector<int, A>(a2, a2 + sizeof(a2) / sizeof(a2[0]))));
    assert(c2.empty());
    assert(std::distance(c2.begin(), c2.end()) == 0);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int, A> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]));
    std::vector<int, A> c2(a2, a2);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert(c1.empty());
    assert(std::distance(c1.begin(), c1.end()) == 0);
    assert((c2 == std::vector<int, A>(a1, a1 + sizeof(a1) / sizeof(a1[0]))));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int, A> c1(a1, a1);
    std::vector<int, A> c2(a2, a2);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert(c1.empty());
    assert(std::distance(c1.begin(), c1.end()) == 0);
    assert(c2.empty());
    assert(std::distance(c2.begin(), c2.end()) == 0);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int, A> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]), A());
    std::vector<int, A> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]), A());
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert((c1 == std::vector<int, A>(a2, a2 + sizeof(a2) / sizeof(a2[0]))));
    assert(c1.get_allocator() == A());
    assert((c2 == std::vector<int, A>(a1, a1 + sizeof(a1) / sizeof(a1[0]))));
    assert(c2.get_allocator() == A());
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
}

TEST_CONSTEXPR_CXX20 bool tests() {
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]));
    std::vector<int> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert(c1 == std::vector<int>(a2, a2 + sizeof(a2) / sizeof(a2[0])));
    assert(c2 == std::vector<int>(a1, a1 + sizeof(a1) / sizeof(a1[0])));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int> c1(a1, a1);
    std::vector<int> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert(c1 == std::vector<int>(a2, a2 + sizeof(a2) / sizeof(a2[0])));
    assert(c2.empty());
    assert(std::distance(c2.begin(), c2.end()) == 0);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]));
    std::vector<int> c2(a2, a2);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert(c1.empty());
    assert(std::distance(c1.begin(), c1.end()) == 0);
    assert(c2 == std::vector<int>(a1, a1 + sizeof(a1) / sizeof(a1[0])));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    std::vector<int> c1(a1, a1);
    std::vector<int> c2(a2, a2);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert(c1.empty());
    assert(std::distance(c1.begin(), c1.end()) == 0);
    assert(c2.empty());
    assert(std::distance(c2.begin(), c2.end()) == 0);
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    typedef test_allocator<int> A;
    std::vector<int, A> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]), A(1, 1));
    std::vector<int, A> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]), A(1, 2));
    swap(c1, c2);
    assert((c1 == std::vector<int, A>(a2, a2 + sizeof(a2) / sizeof(a2[0]))));
    assert(c1.get_allocator().get_id() == 1);
    assert((c2 == std::vector<int, A>(a1, a1 + sizeof(a1) / sizeof(a1[0]))));
    assert(c2.get_allocator().get_id() == 2);
  }
  {
    int a1[] = {1, 3, 7, 9, 10};
    int a2[] = {0, 2, 4, 5, 6, 8, 11};
    typedef other_allocator<int> A;
    std::vector<int, A> c1(a1, a1 + sizeof(a1) / sizeof(a1[0]), A(1));
    std::vector<int, A> c2(a2, a2 + sizeof(a2) / sizeof(a2[0]), A(2));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
    swap(c1, c2);
    assert((c1 == std::vector<int, A>(a2, a2 + sizeof(a2) / sizeof(a2[0]))));
    assert(c1.get_allocator() == A(2));
    assert((c2 == std::vector<int, A>(a1, a1 + sizeof(a1) / sizeof(a1[0]))));
    assert(c2.get_allocator() == A(1));
    assert(is_contiguous_container_asan_correct(c1));
    assert(is_contiguous_container_asan_correct(c2));
  }
#if TEST_STD_VER >= 11
  test_with_allocator<min_allocator<int>>();
  test_with_allocator<safe_allocator<int>>();
#endif

  return true;
}

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