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#include <fstream>
#include <ostream>
#include <iostream>
#include <iomanip>
using namespace std;
const int NAMESIZE = 15;
const int MAXRECORDS = 50;
struct Grades // declares a structure
{
char name[NAMESIZE + 1];
float test1;
float test2;
float final;
char findLetterGrade;
};
typedef Grades gradeType[MAXRECORDS];
// This makes gradeType a data type
// that holds MAXRECORDS
// Grades structures.
void readIt(ifstream&,gradeType,int&,char&);
int main()
{
ifstream indata;
indata.open("graderoll.dat");
int numRecord; // number of records read in
gradeType studentRecord;
char numgrade;
if(!indata)
{
cout << "Error opening file. \n";
cout << "It may not exist where indicated" << endl;
return 1;
}
readIt(indata,studentRecord,numRecord, numgrade);
// output the information
for (int count = 0; count < numRecord; count++)
{
cout << studentRecord[count].name << setw(10)
<< studentRecord[count].test1
<< setw(10) << studentRecord[count].test2;
cout << setw(10) << studentRecord[count].final
<< setw(10) << studentRecord[count].findLetterGrade << endl;
}
system("pause");
return 0;
}
void readIt(ifstream& inData, gradeType gradeRec, int& total,char& numgrade)
{
total = 0;
inData.get(gradeRec[total].name, NAMESIZE);
while (inData)
{
inData>>gradeRec[total].test1;
inData>>gradeRec[total].test2;
inData>>gradeRec[total].final;
total++; // add one to total
inData.ignore();
inData.get(gradeRec[total].name, NAMESIZE);
}
}
float findGradeAvg(gradeType grades, int numGrades, char numgrade)
{
float sum = 0;
for (int pos = 0; pos < numGrades; pos++)
{
sum = grades[numGrades].test1 + grades[numGrades].test2 + grades[numGrades].final;
sum = sum / 3;
}
return (sum / numGrades);
}
char findLetterGrade(float numgrade)
{
char letterGrade = ' ';
if (numgrade >= 90 && numgrade <= 100)
letterGrade = 'A';
else if (numgrade >= 80 && numgrade <= 89)
letterGrade = 'B';
else if (numgrade >= 70 && numgrade <= 79)
letterGrade = 'C';
else if (numgrade >= 60 && numgrade <= 69)
letterGrade = 'D';
else if (numgrade >= 0 && numgrade <= 59)
letterGrade = 'F';
return letterGrade;
}
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