libstdc++-v3/testsuite/20_util/unique_ptr/cons/pointer_array.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // Copyright (C) 2008 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 #include <memory>
  22 #include <testsuite_hooks.h>
  23
  24 struct A
  25 {
  26   A() { ++ctor_count; }
  27   virtual ~A() { ++dtor_count; }
  28   static long ctor_count;
  29   static long dtor_count;
  30 };
  31 long A::ctor_count = 0;
  32 long A::dtor_count = 0;
  33
  34 struct B : A
  35 {
  36   B() { ++ctor_count; }
  37   virtual ~B() { ++dtor_count; }
  38   static long ctor_count;
  39   static long dtor_count;
  40 };
  41 long B::ctor_count = 0;
  42 long B::dtor_count = 0;
  43
  44
  45 struct reset_count_struct
  46 {
  47   ~reset_count_struct()
  48   {
  49     A::ctor_count = 0;
  50     A::dtor_count = 0;
  51     B::ctor_count = 0;
  52     B::dtor_count = 0;
  53   }
  54 };
  55
  56
  57 // 20.4.5.1 unique_ptr constructors [unique.ptr.cons]
  58
  59 // Construction from pointer
  60 void
  61 test01()
  62 {
  63   reset_count_struct __attribute__((unused)) reset;
  64   bool test __attribute__((unused)) = true;
  65
  66   std::unique_ptr<A[]> A_default;
  67   VERIFY( A_default.get() == 0 );
  68   VERIFY( A::ctor_count == 0 );
  69   VERIFY( A::dtor_count == 0 );
  70   VERIFY( B::ctor_count == 0 );
  71   VERIFY( B::dtor_count == 0 );
  72
  73   std::unique_ptr<A[]> A_from_A(new A[3]);
  74   VERIFY( A_from_A.get() != 0 );
  75   VERIFY( A::ctor_count == 3 );
  76   VERIFY( A::dtor_count == 0 );
  77   VERIFY( B::ctor_count == 0 );
  78   VERIFY( B::dtor_count == 0 );
  79 }
  80
  81 int
  82 main()
  83 {
  84   test01();
  85   return 0;
  86 }