Question

Given the code segment below, complete the assignments as stated in the comments. struct aaa { int m; int nn; } struct bbb{ struct aaa myfield; int sum; } struct bbb myvar; // write one statement to place the integer value 44 into the field sum of structure variable myvar . // write one statement to place the integer value -17 into the field nn of structure variable myvar .

Answer 1

1. using namespace std;
2. struct aaa {
3. int m;
4. int nn;
5. };
6. struct bbb{
7. struct aaa myfield;
8. int sum;
9. };
10. struct bbb myvar;
11. int main()
12. {
13. myvar.sum =44;
14. myvar.myfield.nn = -17;
16. cout<<myvar.sum<<"\\";
17. cout<<myvar.myfield.nn<<"\\";
18. return 0;
19. }

Step-by-step explanation:

Given two data structures (Line 2-9), we can set the value of 44 to field of sum structure variable myvar by using a dot syntax

myvar.sum = 44

To assign value to field of nn of structure in myvar, we need to access the myfield of myvar and then followed by nn. Hence, the statement shall be

myvar.myfield.nn = -17

In short the we can always use the dot syntax the access the value of an inner field of a particular data structure.