Rule Definition
The way the copy constructor of 'std::auto_ptr' is implemented makes it incompatible with the collections in the Standard Library. The copy operation of an 'auto_ptr' is destructive (copying A to B changes the state of A), and does not match the requirements of the standard containers. As a result, 'std::auto_ptr' should not be used in containers/collections.

Remediation
Do not use 'auto_ptr' with collections of the Standard Library. Instead, use collections of 'std::unique_ptr' if your compiler supports C++11, or of a 'shared_ptr' type, such as 'std::shared_ptr', 'std::tr1::shared_ptr' or 'boost::shared_ptr', depending on what you have available.

Violation Code Sample

void f()
{
    std::vector<std::auto_ptr<Widget>> v;
}

Fixed Code Sample

void f()
{
    std::vector<std::unique_ptr<Widget>> v;
}