Proiect cont bancar în C++

#include <iostream.h>

#include <fstream.h>

#include <strstrea.h>

#include <iomanip.h>

#include <string.h>

#include <stdlib.h>

#include <conio.h>

#define NMAX_CONT 100

#define NMAX_NUME_TITULAR 100

#define DOBANDA (14/100)

#define NMAX_PAROLA 10

unsigned long int CURS_USD_LEU=30;

unsigned long int CURS_EUR_LEU=35;

unsigned long int ts,suma,suma1,suma2,sumat;

int gasit,gasitcf;

typedef struct

{

char titular[NMAX_NUME_TITULAR], numar[NMAX_CONT], parola[NMAX_PAROLA];

unsigned long int sold;

unsigned valuta;

} Inregistrare;

class ContBancar

{

private:

Inregistrare Continut;

void InitializareMemorieObiect();

void StergereMemorieObiect();

public:

ContBancar();

ContBancar(const char *, const char *,const char *, const unsigned long int, const unsigned);

ContBancar(const int);

ContBancar(char *);

ContBancar operator =(ContBancar&);

ContBancar operator +=(ContBancar&);

ContBancar operator +=(unsigned long int);

ContBancar operator -=(unsigned long int);

unsigned long int operator +(ContBancar&);

bool operator !();

friend ostream &operator << (ostream &, ContBancar &);

friend istream &operator >> (istream &stream, ContBancar &);

void depun(unsigned long int);

unsigned long int retrag(unsigned long int);

unsigned long int spune_total();

ContBancar cont_fisier (char*);

~ContBancar();

};

void ContBancar::depun(unsigned long int x)

{

Continut.sold+=x;

}

unsigned long int ContBancar::retrag(unsigned long int x)

{

x=0;

if ((Continut.sold>0) && (Continut.sold>=x))

{

Continut.sold-=x;

Continut.sold=0;

x=x+(x*DOBANDA);

}

return x;

}

ContBancar::ContBancar()

{

this->InitializareMemorieObiect();

}

ContBancar::ContBancar(const char *titular, const char *numar, const char *parola, const unsigned long int sold, const unsigned valuta)

{

this->InitializareMemorieObiect();

ostrstream iesire_titular(Continut.titular, NMAX_NUME_TITULAR);

ostrstream iesire_numar(Continut.numar, NMAX_CONT);

ostrstream iesire_parola(Continut.parola, NMAX_PAROLA);

Continut.sold=sold;

Continut.valuta=valuta;

iesire_titular<<titular<<ends;

iesire_numar<<numar<<ends;

iesire_parola<<parola<<ends;

}