libcxx/test/std/containers/sequences/vector/vector.capacity/swap.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <vector>
  10
  11 // void swap(vector& x);
  12
  13 #include <vector>
  14 #include <cassert>
  15
  16 #include "test_macros.h"
  17 #include "min_allocator.h"
  18 #include "asan_testing.h"
  19
  20 int main(int, char**)
  21 {
  22     {
  23         std::vector<int> v1(100);
  24         std::vector<int> v2(200);
  25         assert(is_contiguous_container_asan_correct(v1));
  26         assert(is_contiguous_container_asan_correct(v2));
  27         v1.swap(v2);
  28         assert(v1.size() == 200);
  29         assert(v1.capacity() == 200);
  30         assert(is_contiguous_container_asan_correct(v1));
  31         assert(v2.size() == 100);
  32         assert(v2.capacity() == 100);
  33         assert(is_contiguous_container_asan_correct(v2));
  34     }
  35 #if TEST_STD_VER >= 11
  36     {
  37         std::vector<int, min_allocator<int>> v1(100);
  38         std::vector<int, min_allocator<int>> v2(200);
  39         assert(is_contiguous_container_asan_correct(v1));
  40         assert(is_contiguous_container_asan_correct(v2));
  41         v1.swap(v2);
  42         assert(v1.size() == 200);
  43         assert(v1.capacity() == 200);
  44         assert(is_contiguous_container_asan_correct(v1));
  45         assert(v2.size() == 100);
  46         assert(v2.capacity() == 100);
  47         assert(is_contiguous_container_asan_correct(v2));
  48     }
  49 #endif
  50
  51   return 0;
  52 }