text: //===----------------------------------------------------------------------===//
  //
  // 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
  //
  //===----------------------------------------------------------------------===//
  
  // <unordered_map>
  
  // class unordered_map
  
  // size_type size() const noexcept;
  
  #include <unordered_map>
  #include <cassert>
  
  #include "test_macros.h"
  #include "min_allocator.h"
  
  int main(int, char**)
  {
      {
      typedef std::unordered_map<int, double> M;
      M m;
      ASSERT_NOEXCEPT(m.size());
      assert(m.size() == 0);
      m.insert(M::value_type(2, 1.5));
      assert(m.size() == 1);
      m.insert(M::value_type(1, 1.5));
      assert(m.size() == 2);
      m.insert(M::value_type(3, 1.5));
      assert(m.size() == 3);
      m.erase(m.begin());
      assert(m.size() == 2);
      m.erase(m.begin());
      assert(m.size() == 1);
      m.erase(m.begin());
      assert(m.size() == 0);
      }
  #if TEST_STD_VER >= 11
      {
      typedef std::unordered_map<int, double, std::hash<int>, std::equal_to<int>, min_allocator<std::pair<const int, double>>> M;
      M m;
      ASSERT_NOEXCEPT(m.size());
      assert(m.size() == 0);
      m.insert(M::value_type(2, 1.5));
      assert(m.size() == 1);
      m.insert(M::value_type(1, 1.5));
      assert(m.size() == 2);
      m.insert(M::value_type(3, 1.5));
      assert(m.size() == 3);
      m.erase(m.begin());
      assert(m.size() == 2);
      m.erase(m.begin());
      assert(m.size() == 1);
      m.erase(m.begin());
      assert(m.size() == 0);
      }
  #endif
  
    return 0;
  }
  