Catching exceptions from a constructor means that my instance is out of scope afterward

Question

I have a class whose constructor may throw an exception. Here’s some code that will catch the exception:

try {
    MyClass instance(3, 4, 5);
}
catch (MyClas         


        

Answer 1

Dynamically allocate the instance using new:

std::unique_ptr instance;
try
{
    instance.reset(new MyClass(3, 4, 5));
}
catch (const MyClassException& ex)
{
    std::cerr << "There was an error creating the MyClass." << std::endl;
    return 1;
}
// use instance as needed...