Question

2. Consider the statement double ans = 20.0/multiply(2+3) For each of the below mentioned four versions of the function macro multiply Obelow. write the corresponding value of ans variable. a. #define multiply (x) x*x b. #define multiply (x) (x*x) c. #define multiply (x) (x)*(x) d. #define multiply (x) ((x)*(x)) 3. Considerint val=0xFACE; Write expressions using bitwise operators that do the following: A. test if atleast three of the last four bits (LSB) are on B. reverse the byte order (i.e.. produce val=0xCEFA) C. rotate four bits (ie.. produce val-OxEFAC)

PLEASE GIVE C++ CODE OF THE 2nd and 3rd Question.
PLEASE CHECK YOUR CODE BEFORE POSTING IT
I WILL UPVOTE IF THE ANSWER IS CORRECT!

Answer 1

As per HOMEWORKLIB POLICY, I am answering only the first question. In order to get answers of more question please upload the remaining questions separately:

Below is the answer related to question 2.

Q2.) Below is the required C++ code:

#include<iostream>

using namespace std;

//#define multiply(x) x*x
//#define multiply(x) (x*x)
//#define multiply(x) (x)*(x)
#define multiply(x) ((x)*(x))

int main()
{
double ans = 20.0/multiply(2+3);
cout<<ans<<endl;
return 0;
}//end of main function

Note: run using 1 macro at a time, and check the result.

a.) 19

b.) 1.81818

c.) 20

d.) 0.8

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