libcxx/test/std/depr/depr.auto.ptr/auto.ptr/auto.ptr.members/reset.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 // template <class X> class auto_ptr;
  12
  13 // void reset(X* p=0) throw();
  14
  15 // REQUIRES: c++98 || c++03 || c++11 || c++14
  16
  17 #define _LIBCPP_DISABLE_DEPRECATION_WARNINGS
  18
  19 #include <memory>
  20 #include <cassert>
  21
  22 #include "test_macros.h"
  23 #include "../A.h"
  24
  25 void
  26 test()
  27 {
  28     {
  29     A* p = new A(1);
  30     std::auto_ptr<A> ap(p);
  31     ap.reset();
  32     assert(ap.get() == 0);
  33     assert(A::count == 0);
  34     }
  35     assert(A::count == 0);
  36     {
  37     A* p = new A(1);
  38     std::auto_ptr<A> ap(p);
  39     ap.reset(p);
  40     assert(ap.get() == p);
  41     assert(A::count == 1);
  42     }
  43     assert(A::count == 0);
  44     {
  45     A* p = new A(1);
  46     std::auto_ptr<A> ap(p);
  47     A* p2 = new A(2);
  48     ap.reset(p2);
  49     assert(ap.get() == p2);
  50     assert(A::count == 1);
  51     }
  52     assert(A::count == 0);
  53 }
  54
  55 int main(int, char**)
  56 {
  57     test();
  58
  59   return 0;
  60 }