Vector

A vector type is declared with the line     vector< element_type> field;
and has the following methods:

void append_ field( element_type);

int get_ field_count() const;

Iter< element_type> get_ field_iterator();

void insert_ field(int pos,element_type);

void remove_ field(int pos);

element_type get_ field(int pos);

void replace_ field(int pos, element_type);