Avoid `new` and `delete` outside resource management functions

Reason

Direct resource management in application code is error-prone and tedious.

Note

This is also known as the rule of "No naked new!"

Example, bad

void f(int n)
{
    auto p = new X[n];   // n default constructed Xs
    // ...
    delete[] p;
}

There can be code in the ... part that causes the delete never to happen.

See also: R: Resource management

Enforcement

Flag naked news and naked deletes.