Identify the correct sentence regarding inequality between reference and pointer.
What is the output of this program?
1.
#include
2.
using namespace std;
3.
void print (char * a)
4.
{
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cout << a << endl;
6.
}
7.
int main ()
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{
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const char * a = "Hello world";
10.
print(const_cast (a) );
11.
return 0;
12.
}
What is the output of this program?
1.
#include
2.
using namespace std;
3.
int main()
4.
{
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int a = 9;
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int & aref = a;
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a++;
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cout << "The value of a is " << aref;
9.
return 0;
10.
}
What does a reference provide?
What is the output of this program?
1.
#include
2.
using namespace std;
3.
void swap(int &a, int &b);
4.
int main()
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{
6.
int a = 5, b = 10;
7.
swap(a, b);
8.
cout << "In main " << a << b;
9.
return 0;
10.
}
11.
void swap(int &a, int &b)
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{
13.
int temp;
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temp = a;
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a = b;
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b = temp;
17.
cout << "In swap " << a << b;
18.
}