What is the operation for .*?
Which is the best design choice for using pointer to member function?
What is the output of this program?
1.
#include
2.
using namespace std;
3.
class Foo
4.
{
5.
public:
6.
Foo(int i = 0){ _i = i;}
7.
void f()
8.
{
9.
cout << "Executed"< f();
18.
}
What is the output of this program?
1.
#include
2.
using namespace std;
3.
class bowl
4.
{
5.
public:
6.
int apples;
7.
int oranges;
8.
};
9.
int count_fruit(bowl * begin, bowl * end, int bowl :: *fruit)
10.
{
11.
int count = 0;
12.
for (bowl * iterator = begin; iterator != end; ++ iterator)
13.
count += iterator ->* fruit;
14.
return count;
15.
}
16.
int main()
17.
{
18.
bowl bowls[2] = {{ 1, 2 },{ 3, 5 }};
19.
cout << "I have " << count_fruit(bowls,
bowls + 2, & bowl :: apples) << " apples\n";
20.
cout << "I have " << count_fruit(bowls, bowls + 2, & bowl :: oranges) << " oranges\n";
21.
return 0;
22.
}
a) I have 4 apples
I have 7 oranges
b) I have 3 apples
I have 5 oranges
c) I have 1 apples
I have 5 oranges
d) None of the mentioned
What is the output of this program?
1.
#include
2.
using namespace std;
3.
class Car
4.
{
5.
public:
6.
int speed;
7.
};
8.
int main()
9.
{
10.
int Car :: *pSpeed = &Car :: speed;
11.
Car c1;
12.
c1.speed = 1;
13.
cout << c1.speed << endl;
14.
c1.*pSpeed = 2;
15.
cout << c1.speed << endl;
16.
return 0;
17.
}