create a class in C++

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I want create class in C++ with these properties:
1- members of class are strings of length n that each character can get 0 or 1
2- describe a constructor without any parameters
3- describe function member of class that receive two members of class and returns OR operation
4- describe function member of class that receive two members of class and returns AND operation
I write this code please say my problem thanks:

C++

class CBoolOperate{
public:
   CBoolOperate ()//default constructor
   {
     a[5]=b[5]={0};
   };

   ~ CBoolOperate (){};//default destructor
void get()
{
cout&lt;&lt;"please enter first 5 binary digit\n";
for(int i=0;i&lt;5;i++)
cin&gt;&gt;a[i];
cout&lt;&lt;"please enter second 5 binary digit\n";
for(int i=0;i&lt;5;i++)
cin&gt;&gt;b[i];
}
void union(bool a[], bool b[])//A member function
   {
       bool c[5];
       for(int i=0;i&lt;5;i++)
    {
    if (a[i]==1 || b[i]==1)c[i]=1;
    else c[i]=0;
    cout &lt;&lt; c[i];
    }
    cout&lt;&lt;"\n";
   }
 void and(bool a[], bool b[])//A member function
   {
       bool c[5];
       for(int i=0;i&lt;5;i++)
    {
    if (a[i]==1 &amp;&amp; b[i]==1)c[i]=1;
    else c[i]=0;
    cout &lt;&lt; c[i];
    }
    cout&lt;&lt;"\n";
   }
   bool a[5], b[5]; //Member variables
};
int main()
{
CBoolOperate  r;
r.get;
r.union;
r.and;
getch();
return 0;
}

Posted 12-Jun-11 6:33am

Member 7904482

Updated 12-Jun-11 9:03am

CPallini

v3

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Niklas L · Answer 1 · 2011-06-12T07:43:00

Solution 2

C++

r.get;
r.union;
r.and;

You're not calling the functions here.

C++

r.get();
r.union(argument1, argument2);
r.and(argument1, argument2);

But your class already contains the vector arguments, a and b, if I understood. So you could skip them from the argument list altogether.

C++

void union()
{
   ...
}

void and()
{
   ...
}

It's a bit of a mess as it is.

Posted 12-Jun-11 7:43am

Niklas L

Comments

Member 7904482 12-Jun-11 13:47pm

this is new code but it has a lot of errors:
#include <iostream>
using namespace std;
class CBoolOperate{
public:
CBoolOperate ()//default constructor
{
bool a[5];
bool b[5];
a[5]=b[5]={0};
};

~ CBoolOperate (){};//default destructor

void get()
{
cout<<"please enter first 5 binary digit\n";
for(int i=0;i<5;i++)
cin>>a[i];
cout<<"please enter second 5 binary digit\n";
for(int i=0;i<5;i++)
cin>>b[i];
}

bool union(a[], b[])//A member function
{
bool c[5];
for(int i=0;i<5;i++)
{
if (a[i]==1 || b[i]==1)c[i]=1;
else c[i]=0;
cout << c[i];
}
cout<<"\n";
}
void and(bool a[], bool b[])//A member function
{
bool c[5];
for(int i=0;i<5;i++)
{
if (a[i]==1 && b[i]==1)c[i]=1;
else c[i]=0;
cout << c[i];
}
cout<<"\n";
}

bool a[5], b[5]; //Member variables
};

int main()
{
CBoolOperate r;
r.get();
r.union(a[], b[]);
r.and(a[], b[]);
getch();
return 0;
}

Emilio Garavaglia 13-Jun-11 5:46am

Beware to the name "union": in C and C++ union is keyword (like "for", "void" etc.) and you shouldn't use it as a name for variables or functions.

Also, it seems you don't have a clean understanding of the concept of automatic variables and member variables, and even a not clean understanding on how array works across functions.

You have better not to afford this program, until the basic concept I mentioned are absolutely clean to you, or your further experience will end in tears!