libstdc++-v3/testsuite/23_containers/unordered_map/modifiers/move_assign.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2020-2024 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 <utility>
  21 #include <unordered_map>
  22 #include <vector>
  23
  24 #include <testsuite_hooks.h>
  25 #include <testsuite_counter_type.h>
  26 #include <testsuite_allocator.h>
  27
  28 void test01()
  29 {
  30   using namespace std;
  31   using __gnu_test::counter_type;
  32
  33   std::vector<pair<int, counter_type>> insts { { 0, 0 }, { 1, 1 }, { 2, 2 } };
  34   typedef unordered_map<int, counter_type> Map;
  35   Map m;
  36
  37   counter_type::reset();
  38
  39   m.insert(make_move_iterator(insts.begin()), make_move_iterator(insts.end()));
  40
  41   VERIFY( m.size() == 3 );
  42   VERIFY( counter_type::default_count == 0 );
  43   VERIFY( counter_type::copy_count == 0 );
  44   VERIFY( counter_type::move_count == 3 );
  45 }
  46
  47 void test02()
  48 {
  49   using namespace std;
  50   using __gnu_test::counter_type;
  51   using __gnu_test::propagating_allocator;
  52
  53   typedef propagating_allocator<pair<const int, counter_type>, false> Alloc;
  54   typedef unordered_map<int, counter_type,
  55                         hash<int>, equal_to<int>,
  56                         Alloc> Map;
  57
  58   Alloc a1(1);
  59   Map m1(3, a1);
  60   m1 = { { 0, 0 }, { 1, 1 }, { 2, 2 } };
  61   Alloc a2(2);
  62   Map m2(3, a2);
  63   m2 = { { 3, 0 }, { 4, 1 }, { 5, 2 } };
  64
  65   counter_type::reset();
  66
  67   m2 = move(m1);
  68
  69   VERIFY( m1.empty() );
  70   VERIFY( m2.size() == 3 );
  71   VERIFY( counter_type::default_count == 0 );
  72   VERIFY( counter_type::copy_count == 0 );
  73   VERIFY( counter_type::move_count == 3 );
  74 }
  75
  76 int main()
  77 {
  78   test01();
  79   test02();
  80   return 0;
  81 }