Hey again,
I am working my way through the book "C++ Primer Fourth Edition".
I am trying to run a program out of the book using Microsoft Visual C++
version 6 and I am given the error message:
: error C2248: 'hours' : cannot access private member declared in class 'Time'
: error C2248: 'minutes' : cannot access private member declared in class 'Time'
Here is the code. I have indicated where the compiler says the problem lies:
//mytime3.h
#ifndef MYTIME0_H_
#define MYTIME0_H_
#include <iostream>
using namespace std;
class Time
{
private:
int hours;
int minutes;
public:
Time();
Time(int h, int m = 0);
void AddMin(int m);
void AddHr(int h);
void Reset(int h = 0, int m = 0);
Time operator+(const Time & t) const;
Time operator-(const Time & t) const;
Time operator*(double n) const;
friend Time operator*(double m, const Time & t)
{return t * m;}
friend ostream & operator<<(ostream & os, const Time & t);
};
#endif
// mytime3.cpp
#include "mytime3.h"
Time::Time()
{
hours = minutes = 0;
}
Time::Time(int h, int m)
{
hours = h;
minutes = m;
}
void Time::AddMin(int m)
{
minutes += m;
hours += minutes / 60;
minutes %= 60;
}
void Time::AddHr(int h)
{
hours += h;
}
void Time::Reset(int h, int m)
{
hours = h;
minutes = m;
}
Time Time::operator+(const Time & t) const
{
Time sum;
sum.minutes = minutes + t.minutes;
sum.hours = hours + t.hours + sum.minutes / 60;
sum.minutes %= 60;
return sum;
}
Time Time::operator-(const Time & t) const
{
Time diff;
int tot1, tot2;
tot1 = t.minutes + 60 * t.hours;
tot2 = minutes + 60 * hours;
diff.minutes = (tot2 - tot1) % 60;
diff.hours = (tot2 - tot1) / 60;
return diff;
}
Time Time::operator*(double mult) const
{
Time result;
long totalminutes = hours * mult * 60 + minutes * mult;
result.hours = totalminutes / 60;
result.minutes = totalminutes % 60;
return result;
}
//THE PROBLEM IS HERE
ostream & operator<<(ostream & os, const Time & t)
{
os << t.hours << " hours, " << t.minutes << " minutes";
return os;
}
//usertime3.cpp
#include <iostream>
#include "mytime3.h"
using namespace std;
int main()
{
Time A;
Time B(5, 40);
Time C(2, 55);
cout << "A, B, and C:\n";
cout << A << "; " << B << "; " << endl;
A = B + C;
cout << "B + C: " << A << endl;
A = B * 2.75;
cout << "B * 2.75: " << A << endl;
cout << "10 * B: " << 10 * B << endl;
return 0;
}
Please help!!!