Question

1. How would you go about setting the elements of an array to known values after the array has been declared?

2. Suppose we want to write a function that will calculate the sum of the contents of a float-type array and make that value avaliable to the calling function?

a. What would the function prototype look like?

b. What would the function defenition look like?

Answer 1

According to HomeworkLib guidelines i have to solve first question only.

1.

First of all declare the array as

int array[3];

Now setting the elements of an array to known values.

array[0] = 1;

array[1] = 2;

array[2] = 3;

In this we can do assignment.

Example program:

#include<iostream>

using namespace std;

int main()

{

int array[3]; // array declaration

// Now setting the elements of an array to known values.

array[0] = 1;

array[1] = 2;

array[2] = 3;

for(int i=0;i<3;i++) { // Loop to print the values

cout<<array[i]<<endl; // print array elements

}

return 0;

}

Output: