int f() {
int I = 12;
int &r = I;
r += r / 4;
int *p = &r;
*p += r;
return I;
}
Referring to the sample code above, what is the return value
of the function "f()"?
a) 12
b) 15
c) 24
d) 17
e) 30
- 2 Answers
- 9630 Views
- AIG, Quark, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / uma sankar pradhan
int I=12;
int &r=I;
here r is a reference to I
r+=r/4;
=>r=r+r/4;
=>r=12+12/4;[r=I=12]
=>r=12+3
=>r=15
=>I=15
int *p=&r;
so, p is a pointer to r(i.e.,to I)
*p +=r;
=>*p = *p+r
=>*p=15+15
=>*p=30
=>I=30
so the return value of the f() is 30
| Is This Answer Correct ? | 15 Yes | 0 No |
Why is c++ so fast?
Is c++ slower than c?
What is the difference between a "copy constructor" and an "assignment operator" in C++?
What do you mean by persistent and non persistent objects?
Can a constructor throw a exception? How to handle the error when the constructor fails?
How can you say that a template is better than a base class?
Can we use this pointer in a class specific, operator-overloading function for new operator?
What programming language should I learn first?
What is the syntax for a for loop?
advantages and disadvantages of using Borland C++ / version 5.
What is a mutex and a critical section.Whats difference between them?How do each of them work?
I want explanation for this assignment: how to connect mysql database using c/c++,please explain this detailly?
STL 
