C++ GET Array Error - c++

Question

I am having a problem with pieces[] at Copy Constructor and Equal Oparator. i am trying to get pieces like code and month_year but it drops me an error saying 'class machine' has no member named 'get'
#include <iostream>
#include <string>
using namespace std;
class machine {
public:
void set_code(string my_code){
code=my_code;
}
void set_month_year(int my_month_year){
month_year=my_month_year;
}
void set_pieces(int *my_pieces){
for(int i=0;i<25;i++)
pieces[i]=my_pieces[i];
}
string get_code(void){
return code;
}
int get_month_year(void){
return month_year;
int get_pieces_i(int i){
return pieces[i];
}
//Default Constructor
machine(){
code.erase();
month_year=0;
for(int i=0;i<25;i++)
pieces[i]=0;
}
//Destructor
~machine(){}
void print_data(void){
cout << "Code= " << code << endl;
cout << "Month Year " << month_year << endl;
}
void print_pieces(void){
for(int i=0;i<25;i++)
cout << pieces[i] << endl;
}
machine(string my_code, int my_month_year,int *my_pieces){
code=my_code;
month_year=my_month_year;
for(int i=0;i<25;i++)
pieces[i]=my_pieces[i];
}
//Copy Constructor
machine (machine& a)
{
code=a.get_code();
month_year=a.get_month_year();
pieces=a.get.pieces_i();
}
//Equal Operator
void operator = (machine & a)
{
code=a.get_code();
month_year=a.get_month_year();
pieces=a.get_pieces_i();
}
// month & year
int get_month(void) {
return month_year/100;
}
int get_year(void) {
return month_year%100;
}
//return 0 & 1
int ckeck_code(void) {
int counter=0;
for (int i=0;i<25;i++) {
if (pieces [i] <10) {
counter=counter+1;
}
if (counter<5)
return 0;
else
return 1;
}
}
private:
string code;
int month_year;
int pieces[25];
};
int main(void){
return 0;
}

Answer 1

Both copy constructor and assignment operator (yes, it's called assignment operator, not equal operator) should have their parameter of type const machine& instead of machine&.
On the get_* functions, they should be declared as constant member functions. That is,
string get_code(void) const {
return code;
}
int get_month_year(void) const {
return month_year;
}
int get_pieces_i(int i) const {
return pieces[i];
}
Furthermore, the copy constructor and assignment operator should handle pieces like:
for (int i = 0; i < 25; ++i)
pieces[i] = a.get_pieces_i(i);
to match the getters' prototype.