QUESTION 11 Consider the function definition void Demo( int intVal, float& float

Question

QUESTION 11

Consider the function definition

void Demo( int intVal,
                    float& floatVal )
{
      intVal = intVal * 2;
      floatVal = float ( intVal) + 3.5;
}

Suppose that the caller has variables myInt and myFloat whose values are 20 and 4.8, respectively. What are the values of myInt and myFloat after return from the following function call?

Demo( myInt, myFloat );

myInt = 20 and myFloat = 43.5

myInt = 40 and myFloat = 4.8

myInt= 20 and myFloat = 4.8

myInt= 40 and myFloat = 43.5

none of the above

5 points   

QUESTION 12

Consider the function definition

void Demo( int& intVal,
                    float floatVal )
{
      intVal = intVal * 2;
      floatVal = float ( intVal ) + 3.5;
}

Suppose that the caller has variables myInt and myFloat whose values are 20 and 4.8, respectively. What are the values of myInt and myFloat after return from the following function call?

Demo( myInt, myFloat );

myInt = 20 and myFloat = 43.5

myInt = 40 and myFloat = 4.8

myInt= 20 and myFloat = 4.8

myInt= 40 and myFloat = 43.5

none of the above

5 points   

QUESTION 14

If an ampersand (&) is not attached to the data type of a formal parameter, then the corresponding actual parameter can be:

a constant

a variable name

an arbitrary expression

a and b above

a, b, and c above

3 points   

QUESTION 15

For the function definition

void Func ( int& gamma )
{
      gamma = 3 * gamma;
}

which of the following comments describes the direction of data flow for gamma?

in

out

inout

none of the above

myInt = 20 and myFloat = 43.5

myInt = 40 and myFloat = 4.8

myInt= 20 and myFloat = 4.8

myInt= 40 and myFloat = 43.5

none of the above

Explanation / Answer

Q)11)ans)a

reason:

As we specified the & before the variable name myfloat .Then the result value will be returned after performing operations on it.but not in the case of intVal .as It is not having & symbol before it.

Q)12)ans)b

Reason:As we specified the & before the variable name intVal .Then the result value will be returned after performing operations on it.but not in the case of floatVal .as It is not having & symbol before it.

Q)13)ans)a

Q)14)ans)c

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