Can't seem to pass array correctly

[jstacey06]

Everywhere I declare student[i].score I keep getting these error messages:

line 46: error C2676: binary '[' : 'data' does not define this operator or a conversion to a type acceptable to the predefined operator
line 46: error C2228: left of '.score' must have class/struct/union
line 56: error C2676: binary '[' : 'data' does not define this operator or a conversion to a type acceptable to the predefined operator
line 56: error C2228: left of '.score' must have class/struct/union
line 58: warning C4244: '=' : conversion from 'double' to 'float', possible loss of data
line 83: error C2676: binary '[' : 'data' does not define this operator or a conversion to a type acceptable to the predefined operator
line 83: error C2228: left of '.id' must have class/struct/union
line 84: error C2676: binary '[' : 'data' does not define this operator or a conversion to a type acceptable to the predefined operator
line 84: error C2228: left of '.score' must have class/struct/union
line 85: error C2676: binary '[' : 'data' does not define this operator or a conversion to a type acceptable to the predefined operator
line 85: error C2228: left of '.grade' must have class/struct/union




This is my program:

#include <string>
#include <iostream>
#include <iomanip>
using namespace std;
 
 
struct data
{
    int id;
    int score;
    char grade;
}; 
 
 
 
float getAverage (data& student);
void readStuData (data& student);
void assignGrades (data student);
void reportResults (data student);
 
int student[10];
 
int main ()
{
    data studentInfo;
 
    readStuData (studentInfo);
    getAverage (studentInfo);
    assignGrades (studentInfo);
    reportResults (studentInfo);
 
    return 0;
}
 
void readStuData (data& student)
{
    int i;
 
    cout << "Please enter student ID: ";
    cin >> student.id;
    cout <<"Enter student score: ";
    cin >> student.score;
 
    //Read 10 students grade information
    for (i = 0; i < 10; i++)
        cin >> student[i].score;
}
 
float getAverage (data& student)
{
    float avg;
    float sum = 0.0;
    int i;
 
    for (i = 0; i < 10; i++)
        sum = student[i].score + sum;
 
    avg = sum/10.0;
 
    return avg;
}
 
void assignGrades (data student)
{
    float avg;
 
    if ((student.score <= avg + 10) && (student.score >= avg - 10))
        student.grade = 'S';
    else if (student.score > (avg + 10))
        student.grade = 'O';
    else if (student.score < (avg - 10))
        student.grade = 'U';
}
 
void reportResults (data student)
{
    float avg;
    int i;
 
    cout << "The average is " << avg << endl;
 
    for (int i = 0; i < 10; i++)
        cout << setw(5) << "Student " << student[i].id << endl;
        cout << setw(10) << "Student's score is " << student[i].score << endl;
        cout <<    setw(15) << "Student's grade is " << student[i].grade << endl; 
}

Please tell me what I'm doing wrong....thanks!

[newb16]

student (data& student) is a reference structure and not an array, it can't be indexed with []. Btw, naming local variable and global array the same name will lead to confusion.