libcxx/test/std/utilities/memory/util.smartptr/util.smartptr.shared/util.smartptr.shared.const/nullptr_t.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 // <memory>
  10
  11 // shared_ptr(nullptr_t)
  12
  13 #include <memory>
  14 #include <cassert>
  15
  16 #include "test_macros.h"
  17
  18 int main(int, char**)
  19 {
  20   {
  21     std::shared_ptr<int> p(nullptr);
  22     assert(p.use_count() == 0);
  23     assert(p.get() == 0);
  24   }
  25
  26   {
  27     std::shared_ptr<int const> p(nullptr);
  28     assert(p.use_count() == 0);
  29     assert(p.get() == 0);
  30   }
  31
  32   return 0;
  33 }