libstdc++-v3/testsuite/21_strings/basic_string/allocator/wchar_t/move_assign.cc

// Copyright (C) 2015-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// { dg-do run { target c++11 } }
// COW strings don't support C++11 allocator propagation:
// { dg-require-effective-target cxx11-abi }

#include <string>
#include <testsuite_hooks.h>
#include <testsuite_allocator.h>

using C = wchar_t;
const C c = L'a';
using traits = std::char_traits<C>;

using __gnu_test::propagating_allocator;

void test01()
{
  typedef propagating_allocator<C, false> alloc_type;
  typedef std::basic_string<C, traits, alloc_type> test_type;

  static_assert(std::is_move_assignable<test_type>::value, "");
  static_assert(!std::is_nothrow_move_assignable<test_type>::value, "");

  test_type v1(alloc_type(1));
  v1.assign(1, c);
  test_type v2(alloc_type(2));
  v2.assign(1, c);
  v2 = std::move(v1);
  VERIFY(1 == v1.get_allocator().get_personality());
  VERIFY(2 == v2.get_allocator().get_personality());

  test_type v3(alloc_type(3));
  v3.assign(1, c);
  test_type v4(alloc_type(4));
  v4.assign(100, c);
  v4 = std::move(v3);
  VERIFY(3 == v3.get_allocator().get_personality());
  VERIFY(4 == v4.get_allocator().get_personality());

  test_type v5(alloc_type(5));
  v5.assign(100, c);
  test_type v6(alloc_type(6));
  v6.assign(1, c);
  v6 = std::move(v5);
  VERIFY(5 == v5.get_allocator().get_personality());
  VERIFY(6 == v6.get_allocator().get_personality());

  test_type v7(alloc_type(7));
  v7.assign(100, c);
  test_type v8(alloc_type(8));
  v8.assign(100, c);
  v8 = std::move(v7);
  VERIFY(7 == v7.get_allocator().get_personality());
  VERIFY(8 == v8.get_allocator().get_personality());
}

void test02()
{
  typedef propagating_allocator<C, true> alloc_type;
  typedef std::basic_string<C, traits, alloc_type> test_type;

  test_type v1(alloc_type(1));
  v1.assign(1, c);
  test_type v2(alloc_type(2));
  v2.assign(1, c);
  v2 = std::move(v1);
  VERIFY(1 == v1.get_allocator().get_personality());
  VERIFY(1 == v2.get_allocator().get_personality());

  test_type v3(alloc_type(3));
  v3.assign(1, c);
  test_type v4(alloc_type(4));
  v4.assign(100, c);
  v4 = std::move(v3);
  VERIFY(3 == v3.get_allocator().get_personality());
  VERIFY(3 == v4.get_allocator().get_personality());

  test_type v5(alloc_type(5));
  v5.assign(100, c);
  test_type v6(alloc_type(6));
  v6.assign(1, c);
  v6 = std::move(v5);
  VERIFY(5 == v5.get_allocator().get_personality());
  VERIFY(5 == v6.get_allocator().get_personality());

  test_type v7(alloc_type(7));
  v7.assign(100, c);
  test_type v8(alloc_type(8));
  v8.assign(100, c);
  v8 = std::move(v7);
  VERIFY(7 == v7.get_allocator().get_personality());
  VERIFY(7 == v8.get_allocator().get_personality());
}

void test03()
{
  typedef propagating_allocator<C, false> alloc_type;
  typedef std::basic_string<C, traits, alloc_type> test_type;

  test_type v1(alloc_type(1));
  v1.assign(1, c);
  test_type v2(alloc_type(1));
  v2.assign(1, c);
  v2 = std::move(v1);
  VERIFY(1 == v1.get_allocator().get_personality());
  VERIFY(1 == v2.get_allocator().get_personality());

  test_type v3(alloc_type(3));
  v3.assign(1, c);
  test_type v4(alloc_type(3));
  v4.assign(100, c);
  v4 = std::move(v3);
  VERIFY(3 == v3.get_allocator().get_personality());
  VERIFY(3 == v4.get_allocator().get_personality());

  test_type v5(alloc_type(5));
  v5.assign(100, c);
  test_type v6(alloc_type(5));
  v6.assign(1, c);
  v6 = std::move(v5);
  VERIFY(5 == v5.get_allocator().get_personality());
  VERIFY(5 == v6.get_allocator().get_personality());

  test_type v7(alloc_type(7));
  v7.assign(100, c);
  test_type v8(alloc_type(7));
  v8.assign(100, c);
  v8 = std::move(v7);
  VERIFY(7 == v7.get_allocator().get_personality());
  VERIFY(7 == v8.get_allocator().get_personality());
}

int main()
{
  test01();
  test02();
  test03();
  return 0;
}