libstdc++-v3/testsuite/23_containers/unordered_set/allocator/move_assign.cc

   1 // Copyright (C) 2013-2017 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 #include <unordered_set>
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_allocator.h>
  23 #include <testsuite_counter_type.h>
  24
  25 using __gnu_test::propagating_allocator;
  26 using __gnu_test::counter_type;
  27
  28 void test01()
  29 {
  30   typedef propagating_allocator<counter_type, false> alloc_type;
  31   typedef __gnu_test::counter_type_hasher hash;
  32   typedef std::unordered_set<counter_type, hash,
  33                              std::equal_to<counter_type>,
  34                              alloc_type> test_type;
  35
  36   test_type v1(alloc_type(1));
  37   v1.emplace(0);
  38
  39   test_type v2(alloc_type(2));
  40   v2.emplace(1);
  41
  42   counter_type::reset();
  43
  44   v2 = std::move(v1);
  45
  46   VERIFY( 1 == v1.get_allocator().get_personality() );
  47   VERIFY( 2 == v2.get_allocator().get_personality() );
  48
  49   VERIFY( counter_type::move_count == 1  );
  50   VERIFY( counter_type::destructor_count == 2 );
  51 }
  52
  53 void test02()
  54 {
  55   typedef propagating_allocator<counter_type, true> alloc_type;
  56   typedef __gnu_test::counter_type_hasher hash;
  57   typedef std::unordered_set<counter_type, hash,
  58                              std::equal_to<counter_type>,
  59                              alloc_type> test_type;
  60
  61   test_type v1(alloc_type(1));
  62   v1.emplace(0);
  63
  64   auto it = v1.begin();
  65
  66   test_type v2(alloc_type(2));
  67   v2.emplace(0);
  68
  69   counter_type::reset();
  70
  71   v2 = std::move(v1);
  72
  73   VERIFY(0 == v1.get_allocator().get_personality());
  74   VERIFY(1 == v2.get_allocator().get_personality());
  75
  76   VERIFY( counter_type::move_count == 0 );
  77   VERIFY( counter_type::copy_count == 0 );
  78   VERIFY( counter_type::destructor_count == 1 );
  79
  80   VERIFY( it == v2.begin() );
  81 }
  82
  83 int main()
  84 {
  85   test01();
  86   test02();
  87   return 0;
  88 }