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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include <iostream>
#include "itkAutoPointer.h"
class TestObject
{
public:
using Self = TestObject;
using AutoPointer = itk::AutoPointer<Self>;
using ConstAutoPointer = itk::AutoPointer<const Self>;
TestObject() { std::cout << "TestObject Constructed" << std::endl; }
virtual ~TestObject() { std::cout << "TestObject Destructed" << std::endl; }
const char *
GetClassName() const
{
return "my Class name is TestObject";
}
};
int
itkAutoPointerTest(int, char *[])
{
auto * obj = new TestObject;
TestObject::AutoPointer ptr1;
ptr1.TakeOwnership(obj);
std::cout << "after assignment from raw pointer" << std::endl;
std::cout << "ptr1 IsOwner = " << ptr1.IsOwner() << std::endl;
std::cout << ptr1->GetClassName() << std::endl;
TestObject::AutoPointer ptr2(ptr1);
std::cout << "after copy constructor " << std::endl;
std::cout << "ptr1 IsOwner = " << ptr1.IsOwner() << std::endl;
std::cout << "ptr2 IsOwner = " << ptr2.IsOwner() << std::endl;
ptr2.Reset();
std::cout << "after Reset " << std::endl;
std::cout << "ptr2 IsOwner = " << ptr2.IsOwner() << std::endl;
ptr1.TakeOwnership(new TestObject);
std::cout << "after assignment from raw pointer" << std::endl;
std::cout << "ptr1 IsOwner = " << ptr1.IsOwner() << std::endl;
// The following test exercise the methods but don't validate the results
if (ptr1 == ptr2)
{
std::cout << "AutoPointers are equal " << std::endl;
}
if (ptr1 > ptr2)
{
std::cout << "ptr1 > ptr2" << std::endl;
}
if (ptr1 < ptr2)
{
std::cout << "ptr1 < ptr2" << std::endl;
}
TestObject::ConstAutoPointer cptr1;
cptr1.TakeOwnership(new TestObject);
TestObject::ConstAutoPointer cptr2(cptr1);
return EXIT_SUCCESS;
}
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