C++ - I\'m having trouble understanding why the function isn\'t being recognized

Question

C++ - I'm having trouble understanding why the function isn't being recognized after being called. The function is to get the total of the array totalMonthlyRainfall. I posted the text code below the image. Thank you for your help.

#include <iostream>

using namespace std;

void monthlyRainfallInput(string[], double[], int);

double totalMonthlyRainfall(double, int);

int main() {

  

const int MONTHS = 12;

  

string months[MONTHS] = {"Jan", "Feb", "March", "Apr", "May", "June", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

double monthlyRainfall[MONTHS];

  

monthlyRainfallInput(months, monthlyRainfall, MONTHS );

  

totalMonthlyRainfall(monthlyRainfall, MONTHS);

  

return 0;

}

//Function that collects rainfall amount and puts into array

void monthlyRainfallInput(string months[], double monthlyRainfall[], int MONTHS){

  

for (int x = 0 ; x < MONTHS; x++){

cout << "Please enter rainfall amount for " << months[x] << endl;

cin >> monthlyRainfall[x];

}

for (int x = 0 ; x < MONTHS; x++){

cout << months[x] << ": " << monthlyRainfall[x] << " inches" << endl;

}

}

//Function that calculates total rainfall

double totalMonthlyRainfall(double monthlyRainfall[], int MONTHS){

int total = 0;

  

for (int x = 0; x < MONTHS; x++){

total = total + monthlyRainfall[x];

}

return total;

}

12 #include monthlyRainfall[x]; for (int x = 0 ; x

Explanation / Answer

#include <iostream>

using namespace std;

void monthlyRainfallInput(string[], double[], int);

// here in the prototype you gave double instead of double[] which represents an array

double totalMonthlyRainfall(double[], int);

int main() {

const int MONTHS = 12;

string months[MONTHS] = {"Jan", "Feb", "March", "Apr", "May", "June", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};

double monthlyRainfall[MONTHS];

monthlyRainfallInput(months, monthlyRainfall, MONTHS );

totalMonthlyRainfall(monthlyRainfall, MONTHS);

return 0;

}

//Function that collects rainfall amount and puts into array

void monthlyRainfallInput(string months[], double monthlyRainfall[], int MONTHS){

for (int x = 0 ; x < MONTHS; x++){

cout << "Please enter rainfall amount for " << months[x] << endl;

cin >> monthlyRainfall[x];

}

for (int x = 0 ; x < MONTHS; x++){

cout << months[x] << ": " << monthlyRainfall[x] << " inches" << endl;

}

}

//Function that calculates total rainfall

double totalMonthlyRainfall(double monthlyRainfall[], int MONTHS){

int total = 0;

for (int x = 0; x < MONTHS; x++){

total = total + monthlyRainfall[x];

}

return total;

}

/*SAMPLE OUTPUT

Please enter rainfall amount for Jan

10

Please enter rainfall amount for Feb

12

Please enter rainfall amount for March

14

Please enter rainfall amount for Apr

16

Please enter rainfall amount for May

18

Please enter rainfall amount for June

8

Please enter rainfall amount for Jul

6

Please enter rainfall amount for Aug

4

Please enter rainfall amount for Sep

2

Please enter rainfall amount for Oct

1

Please enter rainfall amount for Nov

0

Please enter rainfall amount for Dec

9

Jan: 10 inches

Feb: 12 inches

March: 14 inches

Apr: 16 inches

May: 18 inches

June: 8 inches

Jul: 6 inches

Aug: 4 inches

Sep: 2 inches

Oct: 1 inches

Nov: 0 inches

Dec: 9 inches

*/

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