CPP Exam Dumps : C++ Certified Professional Programmer

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

#include

#include

class A {

public:

virtual int f() { return 10; }

virtual ~A(){}

};

class B: public A {

int f() {return 11; }

virtual ~B(){}

};

int main (){

std::vectorv1;

for(int i = 10; i>0; i??)

{

i%2>0?v1.push_back(new A()):v1.push_back(new B());

}

std::vector::iterator it = v1.begin();

while(it != v1.end())

{

std::cout<<v1.back()?>f()<<" ";

v1.pop_back();++it;

}

return 0;

}

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

#include

#include

#include

#include

using namespace std;

templatestruct Out {

ostream & out;

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

void operator() (const T & val ) { out<

int main() {

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

int t1[]={1,2,3,4};

deque d1(t, t+10);

set s1(t, t+10);

sort(d1.begin(), d1.end());

cout<<includes(s1.begin(),s1.end(), t1,t1+4)<<" "<

<

return 0;

}

Program outputs:

What will happen when you attempt to compile and run the following code?

#include

#include

using namespace std;

int main ()

{

float f = 10.126;

cout.unsetf(ios::floatfield);

cout<<scientific<

return 0;

}

What will be a mantissa part of the numbers displayed: