1. What is the output of printf("%d") 2. What will happen if I say delete this 3. Difference between "C structure" and "C++ structure". 4. Diffrence between a "assignment operator" and a "copy constructor" 5. What is the difference between "overloading" and "overridding"? 6. Explain the need for "Virtual Destructor". 7. Can we have "Virtual Constructors"? 8. What are the different types of polymorphism? 9. What are Virtual Functions? How to implement virtual functions in "C" 10. What are the different types of Storage classes? 11. What is Namespace? 12. What are the types of STL containers?. 13. Difference between "vector" and "array"? 14. How to write a program such that it will delete itself after exectution? 15. Can we generate a C++ source code from the binary file? 16. What are inline functions? 17. Talk sometiming about profiling? 18. How many lines of code you have written for a single program? 19. What is "strstream" ? 20. How to write Multithreaded applications using C++? 21. Explain "passing by value", "passing by pointer" and "passing by reference" 22. Write any small program that will compile in "C" but not in "C++" 23. Have you heard of "mutable" keyword? 24. What is a "RTTI"? 25. Is there something that I can do in C and not in C++? 26. Why preincrement operator is faster than postincrement? 27. What is the difference between "calloc" and "malloc"? 28. What will happen if I allocate memory using "new" and free it using "free" or allocate sing "calloc" and free it using "delete"? 29. What is Memory Alignment? 30. Explain working of printf. 31. Difference between "printf" and "sprintf". 32. What is "map" in STL? 33. When shall I use Multiple Inheritance? 34. What are the techniques you use for debugging? 35. How to reduce a final size of executable? 36. Give 2 examples of a code optimization.

2 Answers  

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Devise a program that inputs a 3 digit number n and finds out whether the number is prime or not. Find out its factors.

0 Answers   TCS,

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pgm to find number of words starting with capital letters in a file(additional memory usage not allowed)(if a word starting with capital also next letter in word is capital cann't be counted twice)

2 Answers   Subex, Wipro,

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What do you know about the use of bit field?

0 Answers  

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Is c programming hard?

0 Answers  

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Why main is not a keyword in c?

0 Answers  

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What should malloc() do? Return a null pointer or a pointer to 0 bytes?

0 Answers  

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simple program of graphics and their output display

0 Answers   Elysium,

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If input is 123 then how to print 100 and 20 and 3 seperately?

4 Answers  

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what is the difference between these initializations? Char a[]=”string”; Char *p=”literal”; Does *p++ increment p, or what it points to?

4 Answers  

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enum colors {BLACK,BLUE,GREEN} main() { printf("%d..%d..%d",BLACK,BLUE,GREEN); return(1); }

4 Answers   ME,

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what is foreign key in c language?

1 Answers   ADP,

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