How to detect whether a class is used as polymophsim?

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Suppose in one old project(>1M lines), there is a class named Base which has two virtual functions foo,bar

Class Base
{
public:
    virtual void foo();
    virtual void bar();
};

Class Derived: public Base
{
public:
    virtual void foo();
    virtual void bar();
};

I doubt that Base is not used as polymophsim, so foo/bar should not be virtual.

To confirm my ideas, I need to find out whether there is a statement like:

Base *b = new Derived;

but if we pass the pointer among a function, it would be hard to find out, for example:

Base *foo()
{
  ...
  Derived *d
  ...
  return d;
}

Is there any way to do that?

Thanks.

asked 47 secs ago

camino

1,495

How to detect whether a class is used as polymophsim?