libcxx/test/std/depr/depr.auto.ptr/auto.ptr/auto.ptr.cons/assignment.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 // auto_ptr& operator=(auto_ptr& a) throw();
  14
  15 // REQUIRES: 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* p1 = new A(1);
  30     std::auto_ptr<A> ap1(p1);
  31     A* p2 = new A(2);
  32     std::auto_ptr<A> ap2(p2);
  33     assert(A::count == 2);
  34     assert(ap1.get() == p1);
  35     assert(ap2.get() == p2);
  36     std::auto_ptr<A>& apr = ap2 = ap1;
  37     assert(&apr == &ap2);
  38     assert(A::count == 1);
  39     assert(ap1.get() == 0);
  40     assert(ap2.get() == p1);
  41     }
  42     assert(A::count == 0);
  43 }
  44
  45 int main(int, char**)
  46 {
  47     test();
  48
  49   return 0;
  50 }