libstdc++-v3/testsuite/20_util/shared_ptr/observers/array.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2016-2020 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 #include <memory>
  21 #include <testsuite_hooks.h>
  22
  23 struct A
  24 {
  25   int i = 0;
  26 };
  27
  28 // C++17 20.11.2.2.5 shared_ptr observers [util.smartptr.shared.obs]
  29
  30 // get
  31 void
  32 test01()
  33 {
  34   A * const a = new A[2];
  35   const std::shared_ptr<A[2]> p(a);
  36   VERIFY( p.get() == a );
  37 }
  38
  39 // get
  40 void
  41 test02()
  42 {
  43   A * const a = new A[2];
  44   const std::shared_ptr<A[]> p(a);
  45   VERIFY( p.get() == a );
  46 }
  47
  48 // operator[]
  49 void
  50 test03()
  51 {
  52   A * const a = new A[2];
  53   const std::shared_ptr<A[2]> p(a);
  54   VERIFY( &p[0] == a );
  55 }
  56
  57 // operator[]
  58 void
  59 test04()
  60 {
  61   A * const a = new A[2];
  62   const std::shared_ptr<A[]> p(a);
  63   VERIFY( &p[0] == a );
  64 }
  65
  66 int
  67 main()
  68 {
  69   test01();
  70   test02();
  71   test03();
  72   test04();
  73 }