Object Oriented Programming - Functions

1. Choose the correct statements regarding inline functions.

  • Option : D
  • Explanation : Each occurrence of the iriline function call will be replaced by its body. No function call overhead will be there but the size of the code will increase.
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3. A function abc is defined as
void abc(int x=0, int y, int z=0)
{

cout << x  << y << z;
}

Which of the following function calls is/are illegal? (Assume h, g are declared as integers) 

  • Option : D
  • Explanation : Since the second argument is mandatory, any call should have at least the first two parameters. Some compilers expect the optional parameters to follow the others. Such compilers give a compilation error.
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5. int a =1 , b=2;

a=chg(b) ;

cout << a << b ;

If the function chg is coded as


int chg(int x)
{
x = 10;

return ();

}
then 

  • Option : C
  • Explanation : Here the default parameter passing mechanism of pass by value will be used. Any change done to the parameter will not be reflected outside the function. So, b retains its value 2.
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