libstdc++-v3/testsuite/23_containers/set/allocator/copy_assign.cc

   1 // Copyright (C) 2013-2025 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 <set>
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_allocator.h>
  23
  24 struct T { int i; };
  25
  26 bool operator<(T l, T r) { return l.i < r.i; }
  27
  28 using Cmp = std::less<T>;
  29
  30 using __gnu_test::propagating_allocator;
  31
  32 void test01()
  33 {
  34   typedef propagating_allocator<T, false> alloc_type;
  35   typedef std::set<T, Cmp, alloc_type> test_type;
  36   test_type v1(alloc_type(1));
  37   v1 = { test_type::value_type{} };
  38   test_type v2(alloc_type(2));
  39   v2 = { test_type::value_type{} };
  40   v2 = v1;
  41   VERIFY(1 == v1.get_allocator().get_personality());
  42   VERIFY(2 == v2.get_allocator().get_personality());
  43 }
  44
  45 void test02()
  46 {
  47   typedef propagating_allocator<T, true> alloc_type;
  48   typedef std::set<T, Cmp, alloc_type> test_type;
  49   test_type v1(alloc_type(1));
  50   v1 = { test_type::value_type{} };
  51   test_type v2(alloc_type(2));
  52   v2 = { test_type::value_type{} };
  53   v2 = v1;
  54   VERIFY(1 == v1.get_allocator().get_personality());
  55   VERIFY(1 == v2.get_allocator().get_personality());
  56 }
  57
  58 void test03()
  59 {
  60   using namespace __gnu_test;
  61
  62   typedef tracker_allocator<int> alloc_type;
  63   typedef std::set<int, std::less<int>, alloc_type> test_type;
  64
  65   tracker_allocator_counter::reset();
  66
  67   test_type v1 = { 0, 1 };
  68   test_type v2 = { 2, 3 };
  69
  70   auto allocs = tracker_allocator_counter::get_allocation_count();
  71   auto constructs = tracker_allocator_counter::get_construct_count();
  72
  73   v1 = v2;
  74
  75   VERIFY( tracker_allocator_counter::get_allocation_count() == allocs );
  76   VERIFY( tracker_allocator_counter::get_construct_count() == constructs + 2 );
  77 }
  78
  79 int main()
  80 {
  81   test01();
  82   test02();
  83   test03();
  84   return 0;
  85 }