What are the perdefined exceptions in c++?
Which of the following is best to include under try block?
What is the output of this program?
1.
#include
2.
#include
3.
using namespace std;
4.
class Test
5.
{
6.
public:
7.
Test();
8.
virtual ~Test();
9.
};
10.
int main()
11.
{
12.
Test *ptrvar = NULL;
13.
try
14.
{
15.
cout << typeid(*ptrvar).name() << endl;
16.
}
17.
catch (bad_typeid)
18.
{
19.
cout << "The object is null" << endl;
20.
}
21.
return 0;
22.
}
What is the output of this program?
1.
#include
2.
#include
3.
using namespace std;
4.
class shape
5.
{
6.
public:
7.
virtual void myvirtualfunc() const {}
8.
};
9.
class mytriangle: public shape
10.
{
11.
public:
12.
virtual void myvirtualfunc() const
13.
{
14.
};
15.
};
16.
int main()
17.
{
18.
shape shape_instance;
19.
shape &ref_shape = shape_instance;
20.
try
21.
{
22.
mytriangle &ref_mytriangle = dynamic_cast(ref_shape);
23.
}
24.
catch (bad_cast)
25.
{
26.
cout << "Caught: bad_cast exception\n";
27.
}
28.
return 0;
29.
}
What is the output of this program?
1.
#include
2.
using namespace std;
3.
int main()
4.
{
5.
char* ptr;
6.
unsigned long int a = (size_t(0) / 3);
7.
cout << a << endl;
8.
try
9.
{
10.
ptr = new char[size_t(0) / 3];
11.
delete[ ] ptr;
12.
}
13.
catch(bad_alloc &thebadallocation)
14.
{
15.
cout << thebadallocation.what() << endl;
16.
};
17.
return 0;
18.
}