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.