libcxx/test/std/containers/sequences/deque/deque.capacity/size.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 // <deque>
  10
  11 // class deque
  12
  13 // size_type size() const noexcept;
  14
  15 #include "asan_testing.h"
  16 #include <deque>
  17 #include <cassert>
  18
  19 #include "test_macros.h"
  20 #include "min_allocator.h"
  21
  22 int main(int, char**)
  23 {
  24     {
  25     typedef std::deque<int> C;
  26     C c;
  27     ASSERT_NOEXCEPT(c.size());
  28     assert(c.size() == 0);
  29     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  30     c.push_back(C::value_type(2));
  31     assert(c.size() == 1);
  32     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  33     c.push_back(C::value_type(1));
  34     assert(c.size() == 2);
  35     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  36     c.push_back(C::value_type(3));
  37     assert(c.size() == 3);
  38     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  39     c.erase(c.begin());
  40     assert(c.size() == 2);
  41     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  42     c.erase(c.begin());
  43     assert(c.size() == 1);
  44     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  45     c.erase(c.begin());
  46     assert(c.size() == 0);
  47     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  48     }
  49 #if TEST_STD_VER >= 11
  50     {
  51     typedef std::deque<int, min_allocator<int>> C;
  52     C c;
  53     ASSERT_NOEXCEPT(c.size());
  54     assert(c.size() == 0);
  55     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  56     c.push_back(C::value_type(2));
  57     assert(c.size() == 1);
  58     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  59     c.push_back(C::value_type(1));
  60     assert(c.size() == 2);
  61     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  62     c.push_back(C::value_type(3));
  63     assert(c.size() == 3);
  64     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  65     c.erase(c.begin());
  66     assert(c.size() == 2);
  67     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  68     c.erase(c.begin());
  69     assert(c.size() == 1);
  70     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  71     c.erase(c.begin());
  72     assert(c.size() == 0);
  73     LIBCPP_ASSERT(is_double_ended_contiguous_container_asan_correct(c));
  74     }
  75 #endif
  76
  77   return 0;
  78 }