Fragments

anupthapa (4)
What is the output for the following code fragments?
cin >> rhubarb;
rhubarb = rhubarb( rhubarb );
cout << rhubarb;

Need explanation as well.
andywestken (1950)
We need a more complete program.

Can you please post the rest of your code along with the fragment, which I presume compiles cleanly.

Andy
anupthapa (4)
Sorry, the tutor has given only these lines of codes and nothing more. We have to write the output with expanation as well.
andywestken (1950)
Well, without more context, all I can say is that it looks weird.

I would be interested to know what your tutors answer is!

Andy

PS Have you tried to get the code to compile??
anupthapa (4)
i tried but its not working.it says 'compiler error' and also 'call of non-function'
helios (10126)
Sorry, the tutor has given only these lines of codes and nothing more. We have to write the output with expanation as well.
It takes a very special kind of asshole to give an exercise like this. Honestly, if I'm in a class and they give an assignment like this, I'd just get up and leave.
andywestken (1950)
Actually, I was wondering if your tutor was looking for answers like "it won't compile", or "it's a load or rubbish/garbage" or even "rhubarb".

But this might be unclear to a beginner. The thing is, it is perfectly possible to define a "suitable" abstract type for the variable rhubarb which would not only compile but do a number of different things.

But it would be pointlessly daft code, and something that should get any professional code put up against the wall and shot if they wrote it as anything other than (an attempt at) a joke.

And I'm very much with helios sentiment. It's a far from useful problem.

Andy
Last edited on
L B (3327)
I can prove that helios is innocent.
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#include <iostream>
using namespace std;

struct jerkface
{
    const jerkface &operator()(const jerkface &) const
    {
        return *this;
    }
    friend istream &operator>>(istream &is, jerkface &)
    {
        return is;
    }
    friend ostream &operator<<(ostream &os, const jerkface &)
    {
        return os;
    }
};

int main()
{
    jerkface rhubarb;
    cin >> rhubarb;
    rhubarb = rhubarb( rhubarb );
    cout << rhubarb;
}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
http://ideone.com/6SlF9
The output, ladies and gentlemen, is nothing.
Last edited on
andywestken (1950)
Well, I got rhubarb as my output!

hello
rhubarb rhubarb rhubarb rhubarb


pointless
rhubarb rhubarb rhubarb rhubarb rhubarb rhubarb rhubarb rhubarb


42
rhubarb rhubarb rhubarb rhubarb rhubarb


321
rhubarb rhubarb rhubarb rhubarb rhubarb rhubarb rhubarb rhubarb


rhubarb
rhubarb


Andy

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#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;

class Rhubarb {
private:
    string m_value;
    
public:
    Rhubarb& operator()(const Rhubarb& rhu) {
        srand(rhu.m_value.length());
        m_value.clear();
        size_t count = rand() % 10;
        while(0 < count--) {
            if(!m_value.empty())
                m_value += " ";
            m_value += "rhubarb";
        }
        return *this;
    }

    friend istream& operator>>(istream& is, Rhubarb& rhu) {
        is >> rhu.m_value;
        return is;
    }
    
    friend ostream& operator<<(ostream& os, const Rhubarb& rhu) {
        os << rhu.m_value;
        return os;
    }
};

int main() {
    Rhubarb rhubarb;
    cin >> rhubarb;
    rhubarb = rhubarb( rhubarb );
    cout << rhubarb;
    return 0;
}


Built using CodeLite with MinGW version of GCC 4.6.1 and run on Windows 7
Last edited on
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