C interview questions – page 7

What is the Difference between "C structure" and "C++ structure"?

What is the Diffrence between a "assignment operator" and a "copy constructor"?

What is the difference between "overloading" and "overridding"?

Explain the need for "Virtual Destructor"?

what is the behaviour of C and C++ compiler for the below statements. int *p; p = malloc(100); Is the behaviour same ? or different ?

Find out the bug in this code,because of that this code will not compile....... #include #include #include 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 Impetus,

what is meaning of isa and hsa

What is the output of printf("%d")?

How is an Abstract Base Class(ABC) related to an "Abstract Data Type" (ADT)

In a class only declaration of the function is there but defintion is not there then what is that function?

How do I open binary files?

catch(exception &e) { . . . } Referring to the sample code above, which one of the following lines of code produces a written description of the type of exception that "e" refers to? a) cout

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

what is the diff b/n c and c++ a. dynamic scoping b. nested switching c. declaration of variables in any code block d. separation of compilation and linking

What is "mutable" keyword?

What is a "RTTI"?

Is there something that we can do in C and not in C++?

What is "strstream" ?

Explain "passing by value", "passing by pointer" and "passing by reference" ?

How to write a program such that it will delete itself after exectution?

What is the Difference between "vector" and "array"?

What are Virtual Functions? How to implement virtual functions in "C" ?

Can you explain the term "resource acquisition is initialization?"

Explain the ISA and HASA class relationships. How would you implement each in a class design?

1. What does the following do: void afunction(int *x) { x=new int; *x=12; } int main() { int v=10; afunction(&v); cout

How long does this loop run: for(int x=0; x=3; x++) a) Never b) Three times c) Forever

Why is it difficult to store linked list in an array?

What is Pure Virtual Function? Why and when it is used ?

How do you know that your class needs a virtual destructor?

Why do C++ compilers need name mangling?