Shadow[Of]Death

#include "class.h"void DB::add(list<node> & l){    list<node> lt;    node p;    char* file = "duomenys.txt";    ifstream f(file);    while(!f.eof())    {        f >> p.vard >> p.pav >> p.miestas >> p.laikas >> p.nr >> p.nr1;        l.push_front(p);    }    cout << "Duomenys suvesti" << endl;}void DB::del(list<node> & l){    string tmp;    cout << "Iveskite varda bonento kuri noretumete istrinti is duomenu bazes: " << endl;    cin >> tmp;    list<node>::iterator Iterator;    Iterator = l.begin();    while(Iterator != l.end())    {        if (Iterator->vard == tmp)        {            l.erase(Iterator);        }        Iterator++;    }}void DB::show(list<node> l){    list<node>::iterator Iterator;    Iterator = l.begin();    while(Iterator != l.end())    {        cout << Iterator->vard << Iterator->pav << Iterator->miestas << Iterator->laikas << Iterator->nr << Iterator->nr1 << endl;        Iterator++;    }}