libstdc++-v3/testsuite/23_containers/unordered_multimap/allocator/copy.cc

   1 // Copyright (C) 2013-2023 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_map>
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_allocator.h>
  23
  24 struct T { int i; };
  25
  26 struct hash
  27 {
  28   std::size_t operator()(const T t) const noexcept
  29   { return t.i; }
  30 };
  31
  32 struct equal_to
  33 {
  34   bool operator()(const T& lhs, const T& rhs) const noexcept
  35   { return lhs.i == rhs.i; }
  36 };
  37
  38 using __gnu_test::propagating_allocator;
  39
  40 void test01()
  41 {
  42   typedef propagating_allocator<std::pair<const T, T>, false> alloc_type;
  43   typedef std::unordered_multimap<T, T, hash, equal_to, alloc_type> test_type;
  44   test_type v1(alloc_type(1));
  45   v1.emplace(std::piecewise_construct,
  46              std::make_tuple(T()), std::make_tuple(T()));
  47   test_type v2(v1);
  48   VERIFY(1 == v1.get_allocator().get_personality());
  49   VERIFY(0 == v2.get_allocator().get_personality());
  50 }
  51
  52 void test02()
  53 {
  54   typedef propagating_allocator<std::pair<const T, T>, true> alloc_type;
  55   typedef std::unordered_multimap<T, T, hash, equal_to, alloc_type> test_type;
  56   test_type v1(alloc_type(1));
  57   v1.emplace(std::piecewise_construct,
  58              std::make_tuple(T()), std::make_tuple(T()));
  59   test_type v2(v1);
  60   VERIFY(1 == v1.get_allocator().get_personality());
  61   VERIFY(1 == v2.get_allocator().get_personality());
  62 }
  63
  64 void test03()
  65 {
  66   typedef propagating_allocator<std::pair<const T, T>, true> alloc_type;
  67   typedef std::unordered_multimap<T, T, hash, equal_to, alloc_type> test_type;
  68   test_type v1(alloc_type(1));
  69   v1.emplace(std::piecewise_construct,
  70              std::make_tuple(T()), std::make_tuple(T()));
  71   test_type v2(v1, alloc_type(2));
  72   VERIFY(1 == v1.get_allocator().get_personality());
  73   VERIFY(2 == v2.get_allocator().get_personality());
  74 }
  75
  76 int main()
  77 {
  78   test01();
  79   test02();
  80   test03();
  81   return 0;
  82 }