llvm/libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.cnstr/converting_copy.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++03

// <memory>

// template <class OuterAlloc, class... InnerAllocs>
//   class scoped_allocator_adaptor

// template <class OuterA2>
//   scoped_allocator_adaptor(const scoped_allocator_adaptor<OuterA2,
//                                                           InnerAllocs...>& other);

#include <scoped_allocator>
#include <cassert>

#include "test_macros.h"
#include "allocators.h"

int main(int, char**) {
  {
    typedef std::scoped_allocator_adaptor<A1<double>> B;
    typedef std::scoped_allocator_adaptor<A1<int>> A;
    B a1(A1<int>(3));
    A1<int>::copy_called = false;
    A1<int>::move_called = false;
    A a2                 = a1;
    assert(A1<int>::copy_called == true);
    assert(a2 == a1);
  }
  {
    typedef std::scoped_allocator_adaptor<A1<double>, A2<int>> B;
    typedef std::scoped_allocator_adaptor<A1<int>, A2<int>> A;
    B a1(A1<int>(4), A2<int>(5));
    A1<int>::copy_called = false;
    A1<int>::move_called = false;
    A2<int>::copy_called = false;
    A2<int>::move_called = false;
    A a2                 = a1;
    assert(A1<int>::copy_called == true);
    assert(A2<int>::copy_called == true);
    assert(a2 == a1);
  }
  {
    typedef std::scoped_allocator_adaptor<A1<double>, A2<int>, A3<int>> B;
    typedef std::scoped_allocator_adaptor<A1<int>, A2<int>, A3<int>> A;
    B a1(A1<int>(4), A2<int>(5), A3<int>(6));
    A1<int>::copy_called = false;
    A1<int>::move_called = false;
    A2<int>::copy_called = false;
    A2<int>::move_called = false;
    A3<int>::copy_called = false;
    A3<int>::move_called = false;
    A a2                 = a1;
    assert(A1<int>::copy_called == true);
    assert(A2<int>::copy_called == true);
    assert(A3<int>::copy_called == true);
    assert(a2 == a1);
  }

  return 0;
}