Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


class Alpha {
public:
char data[10000];
Alpha();
~Alpha();
};
class Beta {
public:
Beta() { n = 0; }
void FillData(Alpha a);

private:
int n;
};
How do you make the above sample code more efficient?
a) If possible, make the constructor for Beta private to
reduce the overhead of public constructors.
b) Change the return type in FillData to int to negate the
implicit return conversion from "int" to "void".
c) Make the destructor for Alpha virtual.
d) Make the constructor for Alpha virtual.
e) Pass a const reference to Alpha in FillData

Answers were Sorted based on User's Feedback



class Alpha { public: char data[10000]; Alpha(); ~Alpha(); }; class Beta { ..

Answer / guest

pass a const reference to Alpha in FillData i.e Ans e)

Is This Answer Correct ?    16 Yes 4 No

class Alpha { public: char data[10000]; Alpha(); ~Alpha(); }; class Beta { ..

Answer / mpoleg

c)
all other options are not valid c++

Is This Answer Correct ?    1 Yes 3 No

Post New Answer

More C++ General Interview Questions

What are special characters c++?

0 Answers  


Can we remove an element in a single linked list without traversing? Lets suppose the link list is like this 1 2 3 4 5 6 We need to remove 4 from this list (without traversing from beginning) and the final link list shud be 1 2 3 5 6 only thing we know is the pointer to element "4". How can we remove "4" and link "3" to "5"?

6 Answers   CSC,


How are virtual functions implemented in c++?

0 Answers  


How can you force instantiation of a template?

1 Answers   ABC, Amazon,


Difference between a copy constructor and an assignment operator.

0 Answers  


What is the use of ‘using’ declaration?

1 Answers  


Brief explaination about #include<iostream.h>, cin and cout

3 Answers  


Who made c++?

0 Answers  


What are the c++ access specifiers?

1 Answers  


Find out the bug in this code,because of that this code will not compile....... #include <iostream> #include <new> #include <cstring> using namespace std; class balance { double cur_bal; char name[80]; public: balance(double n, char *s) { cur_bal = n; strcpy(name, s); } ~balance() { cout << "Destructing "; cout << name << "\n"; } void set(double n, char *s) { cur_bal = n; strcpy(name, s); } void get_bal(double &n, char *s) { n = cur_bal; strcpy(s, name); } }; int main() { balance *p; char s[80]; double n; int i; try { p = new balance [3]; // allocate entire array } catch (bad_alloc xa) { cout << "Allocation Failure\n"; return 1; }

2 Answers   Impetus,


When does a 'this' pointer get created?

0 Answers  


write infinite loop in C++ which does not use any variable or constant?

3 Answers  


Categories