should be:
template <class T>struct plus : public binary_function<T, T, T> { T operator()(const T& i, const T& j) const { return i + j; } }; With Kind Regards,Ovanes
template <class T>
struct plus : public binary_function<T, T, T> { T operator()(const T& i, const T& j) const { return i + j; } };
With Kind Regards,
Ovanes