Functions and Arrays as Parameters

[Ayalaj01]

Can anyone tell me what "int values" is supposed to mean as parameters to these functions? I'm not sure what do with them.
Also i have no idea how to input values into the array via functions. I was trying to but I just don't understand how to connect a user's input to a function to then enter into an array.


// input reads “values” integers from the user to place in the array
// data. It prompts the user for each value individually with the ordinal
// position of the value.
void input (int data [size], int values);

// Places the sum of corresponding values from arrays a and b and places
// the results in array s. The first “values” integers in the array are
// processed.
void do_sums (int a [size], int b [size], int s [size], int values);

// Places the differences of corresponding values from arrays a and b
// and places the results in array d. The first “values” integers in the array
// are processed.
void do_differences (int a [size], int b [size], int d [size], int values);

// Places the products of corresponding values from arrays a and b
// and places the results in array p. The first “values” integers in the array
// are processed.
void do_products (int a [size], int b [size], int p [size], int values);

// Places the integer quotients of corresponding values from arrays a and b
// and places the results in array q. The first “values” integers in the array
// are processed.
void do_quotients (int a [size], int b [size], int q [size], int values);

// Prints in equation form the applying of the operator “op” to corresponding values
// in the a and b arrays and getting the result from the answer array. The equations
// are numbered. The first “values” integers in the array are processed.
void print (int a [size], int b [size], int answer [size], char op, int values);

// Computes and returns the sum of the “values” integers in the data1 and data2
// arrays.
int sum_of_all (int data1 [size], int data2 [size], int values);



#include <cstdlib>
#include <iostream>

using namespace std;

const int size = 3;
const int value = 3;
void input (int data [size], int values);
void do_sums (int a [size], int b [size], int s [size], int values);
void do_differences (int a [size], int b [size], int d [size], int values);
void do_products (int a [size], int b [size], int p [size], int values);
void do_quotients (int a [size], int b [size], int q [size], int values);
void print (int a [size], int b [size], int answer [size], char op, int values);
int sum_of_all (int data1 [size], int data2 [size], int values);

int main(int argc, char *argv[])
{
//Variables
int howMany, v;
int a[size];
int b[size];
int s[size];
int d[size];
int p[size];
int q[size];


cout<<"Enter the number of data values: ";
cin>> howMany;

//Prompt user for data for first array
cout<<" "<<endl;
cout<<"Enter first set of data: "<<endl;
cout<<"Enter value 1: ";
input(a, 3);
cout<<"Enter value 2: ";
input(a, 3);
cout<<"Enter value 3: ";
input(a, 3);


//Prompt user for data for second array
cout<<" "<<endl;
cout<<"Enter second set of data: "<<endl;
cout<<"Enter value 1: ";
input(b, 3);
cout<<"Enter value 2: ";
input(b, 3);
cout<<"Enter value 3: ";
input(b, 3);

//Sums of values
cout<<" "<<endl;
do_sums( a, b, s, 3);
cout<<"The sums are: "<<endl;
print(a, b, s, '+', 3);

//Differences of values
cout<<" "<<endl;
do_differences(a, b, d, 3);
cout<<"The differences are: "<<endl;
print(a, b, d, '+', 3);

//Products of values
cout<<" "<<endl;
do_products(a, b, p, 3);
cout<<"The products are: "<<endl;
print(a, b, p, '*', 3);

//Quotients of values
cout<<" "<<endl;
do_quotients(a, b, q, 3);
cout<<"The quotients are: "<<endl;
print(a, b, q, '/', 3);

//Total sum
// cout<<" "<<endl;
//sum_of_all();
//cout<<"The total sum is: "<<endl;
//print();







system("PAUSE");
return EXIT_SUCCESS;
}

void input (int data [size], int values)
{
int i;
int userInput;

for (int i = 0; i < value; i ++)
{
cin >> userInput;
userInput = data[i];
}
}

void do_sums (int a [size], int b [size], int s [size], int values)
{
int i;

for (i = 0; i < 3 ; i++)
s[i] = a[i] + b[i];
}

void do_differences (int a [size], int b [size], int d [size], int values)
{
int i;

for (i = 0; i < 3; i++)
d[i] = a[i] - b[i];
}

void do_products (int a [size], int b [size], int p [size], int values)
{
int i;

for (i = 0; i < 3; i++)
p[i] = a[i] * b[i];
}

void do_quotients (int a [size], int b [size], int q [size], int values)
{
int i;

for (i = 0; i < 3; i++)
q[i] = a[i] / b[i];
}

void print (int a [size], int b [size], int answer [size], char op, int values)
{
char gosh;
int i;
for (i = 0; i < 3; i++)
{
cout<<"1. "<<a[i]<<gosh<<b[i]<<"="<<answer[i]<<endl;
cout<<"2. "<<a[i]<<gosh<<b[i]<<"="<<answer[i]<<endl;
cout<<"3. "<<a[i]<<gosh<<b[i]<<"="<<answer[i]<<endl;
}
}

int sum_of_all (int data1 [size], int data2 [size], int values)
{

}

[wildblue]

The values parameter seems to correspond to the user input you get here

cout<<"Enter the number of data values: ";
cin>> howMany;

But it seems like the arrays have a fixed size of 3. Is that supposed to be hardcoded per the assignment or should the user be able to enter however many values they want?

[Ayalaj01]

So then int values means 3? I put three because that's how many elements there are in the array but I'm not sure if that's what it's supposed to mean especially with the input function.