boost::scoped_ptr second parameter with delete operations

[Stepan Koltsov <yozh@…>]

Requesting second parameter of scoped_ptr (and other smart pointers) templates, specifying destroy operation for pointer. Something like this (simplified code):

template <class T>
struct destroy_delete {
  static void destroy(T* t) { delete t; }
};

template <class T, class D = destroy_delete>
class scoped_ptr {
  ~scoped_ptr() {
    D::destroy(px);
  }
};


// this I can use in my code
template <class T>
struct destroy_free {
  static void destroy(T* t) { free(t); }
};

[Peter Dimov]

std::unique_ptr is the recommended alternative when you need a deleter.