C++ Institute Related Exams
CPP Exam
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 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:
What happens when you attempt to compile and run the following code?
#include
using namespace std;
void g(int a)
{
cout<<a?1< } template void g(A a) { cout<<a+1< } int main() { int a = 1; g(a); return 0; }