Inheritance of the vector class

[cagenix]

I was running through a data structures book and I was curious if anyone could inform me of how to inherit the vector class to do a simple search and erase function. The example states:

vector_plus is a subclass of the vector class.
vector_plus has no new fields.
Define:

void erase_item(const T& item);

Here is an example of my header file:

#ifndef VECTOR_PLUS
#define VECTOR_PLUS
#include <vector>
using namespace std;
 
template<class T>
class vector_plus : public vector<T>
{
  public:
    vector_plus();
    void erase_item(const T& item);
};
 
#endif

In the erase_item method I would use the find method defined in <algorithm> and the erase method in <vector>. I have tried to figure this out for a few days now and keep getting errors within the declaration of the erase_item method.

Thank you so much for your help.