CI

C++ Certified Professional Programmer

228 Questions

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Question No. 1

"What happens when you attempt to compile and run the following code?

#include <vector> 

#include <iostream> 

#include <algorithm> 

#include <functional> 

using namespace std; class B { int val; public:

B(int v=0):val(v){}

int getV() const {return val;} operator int () const { return val;} };

ostream & operator <<(ostream & out, const B & v) { out<<v.getV(); return out;}

template<class T>struct Out { ostream & out;

Out(ostream & o): out(o){}

void operator() (const T & val ) { out<<val<<"" ""; } };

int main() {

B t[]={3,2,4,1,5,6,10,8,7,9};

vector<B> v1(t, t+10);

transform(v1.begin(), v1.end(), v1.begin(), bind2nd(plus<B>(), 1)); for_each(v1.rbegin(), v1.rend(), Out<B>(cout));cout<<endl;

return 0;

}

Program outputs:

"

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