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// Description:
// This program will read a text file containing student information and their
// grade for the current semester and check whether they are failing all
// courses (3 total). You are to declare 3 structures called Name, Grades, and
// StudentInfo respectively. The structure Name contains two char arrays
// containing a student’s first and last name. The structure Grades contains 3
// chars that hold the grades for three classes the student is taking: math,
// science, and English. The last structure StudentInfo contains 3 datatypes:
// an int for student ID, a Name, and Grades. The structure StudentInfo will
// hold all the information needed for the student. In main, you’re to create
// an array of the structure StudentInfo that can hold as many students as
// there are in the file StudentInfo.txt. You’ll open the file in main and
// call the function ReadFile to read the contents of the file and store them
// appropriately in the structure array before returning to main. Once the
// student info is read and stored, main will call the function IsFailing and
// check which students are failing all the classes.
//
// ============================================================================
#include <iostream>
#include <fstream>
using namespace std;
// Constant of Number of Students
const int numberStudents = 30;
//Structures
struct Name
{
char firstName[256];
char lastName[256];
};
struct Grades
{
char mathGrade;
char scienceGrade;
char englishGrade;
};
struct StudentInfo
{
Name fullName[512];
int studentID;
Grades studentGrades;
};
// Function Prototypes
void ReadFile(ifstream& inFile, StudentInfo studentData[], int studentAmount);
void IsFailing(StudentInfo studentData[], int studentAmount);
void DispName(StudentInfo failingStudentData);
// ==== main ==================================================================
//
// ============================================================================
int main()
{
// File Variable
ifstream inFile;
// Structure Array of the Student Data
StudentInfo studentData[numberStudents];
// Number of Students in the Class
int numStudents = 30;
// Check to see if file opened
inFile.open("StudentInfo.txt");
if (inFile.is_open())
{
// Sends inFile, studentData, and numStudents to readFile
ReadFile (inFile, studentData, numStudents);
inFile.close;
}
else
{
// Error message if file not opened, program terminates after
cout << "Error opening file. . .";
exit(EXIT_FAILURE);
}
// Sends copied data from inFile to studentData to IsFailing
IsFailing (studentData, numStudents);
return 0;
} // End of main
// ==== ReadFile ==============================================================
//
// This function writes the data from the studentinfo.txt file to the
// studentInfo array.
//
// Input:
// InFile [IN] -- a text file that will transfer its text to studentInfo array
// studentData[] [IN] -- an array that will store the text from studentinfo.txt
// studentAmount [IN] -- an integer value that stores the amount of students
//
// Output:
// The studentData array is overwritten with the data from studentinfo.txt.
//
// =============================================================================
void ReadFile(ifstream& inFile, StudentInfo studentData[], int studentAmount)
{
// Writes the student's information from the text file to the array
for (int counter = 0; counter < studentAmount; ++counter)
{
inFile >> studentData[counter].fullName->firstName;
inFile >> studentData[counter].fullName->lastName;
inFile >> studentData[counter].studentID;
inFile >> studentData[counter].studentGrades.mathGrade;
inFile >> studentData[counter].studentGrades.scienceGrade;
inFile >> studentData[counter].studentGrades.englishGrade;
}
} // End of ReadFile
// ==== IsFailing =============================================================
//
// This function tests the studentData array for students who have a D or F in
// all three classes and then sends those students to DispName.
//
// Input:
// studentData[] [IN] -- a struct array containg the student's information
// studentAmount [IN] -- an integer value containing the amount of students
//
// Output:
// Student's names who have obatained a failing grade in all three classes are
// sent to DispName.
//
// =============================================================================
void IsFailing(StudentInfo studentData[], int studentAmount)
{
// Structure for failing students
StudentInfo failingStudents;
// Tests each array to see if any student has failed all three classes
for (int counter = 0; counter < studentAmount; ++counter)
{
if ((studentData[counter].studentGrades.mathGrade == 'D' || 'F') && (studentData[counter].studentGrades.scienceGrade == 'D' || 'F') && (studentData[counter].studentGrades.englishGrade == 'D' || 'F'))
{
// Writes data to failingStudents and sends it to DispName
failingStudents = studentData[counter];
DispName(failingStudents);
}
else
{
cout << "The following student(s) are failing: \n" << "No students are failing!";
}
}
} // End of IsFailing
// ==== DispName ==============================================================
//
// This function displays the names of the students who are failing all three
// classes.
//
// Input:
// failingStudentData [IN] -- a structure containing the students information
//
// Output:
// The name of the failing student.
//
// =============================================================================
void DispName(StudentInfo failingStudentData)
{
// Outputs the name of the failing students
cout << "The following student(s) are failing: \n";
cout << failingStudentData.fullName->firstName << failingStudentData.fullName->lastName;
} // End of DispName
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