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>
using namespace std;
class B { int val;
public:
B(int v):val(v){}
int getV() const {return val;} bool operator < (const B & v) const { return val<v.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() {
int t[]={8, 10, 5, 1, 4, 6, 2, 7, 9, 3};
vector<B> v1(t, t+10);
sort(v1.begin(), v1.end());
for_each(v1.begin(), v1.end(), Out<B>(cout));cout<<endl;
return 0;
}

Choose the correct option from the given list.
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