A class that specifies the life and scope of its variables and functions is called a storage class.
In C++ following the storage classes are supported: auto, static, register, extern, and mutable.
Note, however, that the keyword register was deprecated in C++11. In C++17, it was removed and reserved for future use.
What means pass by pointer?
What means pass by reference?
What means pass by value?
Which reference modifier is used to define reference variable? a) & b) $ c) # d) none of the mentioned
What does a reference provide? a) Alternate name for the class b) Alternate name for the variable c) Alternate name for the pointer d) none of the mentioned
Identify the correct sentence regarding inequality between reference and pointer. a) we can not create the array of reference. b) we can create the Array of reference. c) we can use reference to reference. d) none of the mentioned
Which value we cannot assign to reference? a) integer b) floating c) unsigned d) null
What is output of this program?
#include <iostream>
using namespace std;
int main()
{
int a = 9;
int & aref = a;
a++;
cout << "The value of a is " << aref;
return 0;
}
a) 9
b) 10
c) error
d) 11What is the output of this program?
#include <iostream>
using namespace std;
void swap(int &a, int &b);
int main()
{
int a = 5, b = 10;
swap(a, b);
cout << "In main " << a << b;
return 0;
}
void swap(int &a, int &b)
{
int temp;
temp = a;
a = b;
b = temp;
cout << "In swap " << a << b;
}
a) In swap 105 In main 105
b) In swap 105 In main 510
c) In swap 510 In main 105
d) none of the mentionedIdentify the incorrect statement a) reference is the alternate name of the object b) A reference value once defined can be reassigned c) A reference value once defined cannot be reassigned d) none of the mentioned
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