Using Parnas table depict meaning of functions and procedures

Example:

Consider the following function:

int example (int a[], int n) { int count=0; for (int i=0; i < n; i++) { if (a[i] %2 == 0) count++; } return count; }

The input variables are the array a and n, the size of a. The output variables is only returnValue the value returned by the function since the array is not modified and no global variables are modified. Clearly this function returns the number of even numbers in the array a. We can specify this in a Parnas table like:

Condition returnValue n = size of the array a n1 (a[i] is even) i=0 Question need to be help:

1. A procedure that rearranges things void rearrange (int &a, int &b, int &c) { int t = b; b = a; a = c; c = t; }

2. A procedure that prints something void print (int a, int b) { int sum = 0; int i; for (i=a; i <=b; i++) sum = sum + i; cout << sum << endl; }

3. A procedure that computes something void compute (int a[], int n, int key, int &i) { for (i=0; i < n && a[i] != key; i++); }

4. A function that computes something int sm1 (int a[], int n) { int t; for (t=0, int i=0; i < n; i++) { t = t+i; } return t; } 5. A function that accumulates from an array int sm3 (int a[], int n) { int t; for (t=0, int i=0; i < n; i++) { t = t+a[i]; } return t; }

6. A function that computes a value from an array int sm5 (int a[], int n) { int t; for (t=a[0], int i=0; i < n; i++) { if (a[i] > t) t = a[i]; } return t; }

7. A function that computes something from an array int f1 (int a[], int n, int k) { int i=0; while (i < n and a[i] != k) i++; return i; }

8. A function that computes a boolean from an array bool f2 (int a[], int n, int k) { int i=0; while (i < n and a[i] != k) i++; return i < n; }

9. A function that computes something from an array int f3 (int a[], int n, int k) { int i=0; while (i < n ) { i++; } return i < n; }

10. A function that does weird and unusual things int f1 (int a[], int n, int k) { int i=n-1; while (i>=0 and a[i] != k) i++; return i; }