Hello, would someone mind taking a look at this as this program will not run. The input file is filled vertically with words/data. I have taken initiative to move things around, redefine them, but this stage of the program is the best I have gotten it to.
I am getting these errors:
1 IntelliSense: identifier "Total_Examgrade" is undefined
2 IntelliSense: identifier "Total_Labgrade" is undefined
3 IntelliSense: identifier "Final_grade" is undefined
4 IntelliSense: identifier "Average_Examgrade" is undefined
5 IntelliSense: identifier "Average_Labgrade" is undefined
6 IntelliSense: function "std::basic_ofstream<_Elem, _Traits>::basic_ofstream(const std::basic_ofstream<_Elem, _Traits>::_Myt &) [with _Elem=char, _Traits=std::char_traits<char>]" (declared at line 1016 of "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\include\fstream") cannot be referenced -- it is a deleted function
Code:#include <iostream> #include <fstream> #include <iomanip> #include <string> using namespace std; const int size = 20;//change here to change array size class Student//declares class type Student { public: string Firstname, Middlename, Lastname; float GPA;//each student has 1 GPA char Lettergrade; int Examgrade[3]; //holds Examgrade1, Examgrade2, Examgrade3; int Labgrade[4]; //holds Labgrade1, Labgrade2, Labgrade3, Labgrade4; //function declarations void Initialize(Student Compstud[]); //function initializes all the elements void Read_Data(ifstream& In_Data, Student Compstud[]); //function read values from a file, these values will be used for calculations //postcondition: replaces 0 initialization with those values float Calc_GPA(int Examgrade[], int Labgrade[], Student Compstud[]); //function calculates the GPA of each of the students //Postcondition: Able to use the return values of this function to assign letter grade char LetterGrade(float GPA, Student Compstud[]); //Precondition: Student has a GPA calculated //function outputs a letter grade according to the student's calculated GPA //Grading scale: 100-90: A , 90-80: B, 80-70: C, 70-0: D: Failure float calc_ClassAverage(float GPA, Student Compstud[]); //Precondition: Each student has a GPA calculated //function uses all student's GPA to calculates average grade of the class //use pointer to point to each student's GPA and sum them up void Display_File(ofstream Out_Data, Student Compstud[]); //Postconditions: //Outputs each of the 20 students' full name, 3 exam grades, //each of the 4 lab grades, and final grade to an output file //Outputs the average GPA of whole class void Display_Screen(Student Compstud[]); //Postconditions: //Outputs each of the 20 students' full name, 3 exam grades, //each of the 4 lab grades, and final grade to the screen //Outputs the average GPA of whole class }; //to "access" any student's ID number: Student.IDnumber //to "access" a student's 1st exam grade: Student.Examgrade[0] Student Compstud[size]; //initializes an array within type Student to hold 'size' Compsci students ifstream In_Data; ofstream Out_Data; float ClassAverage; int main() { //function calls begin, Still getting the "identifier" is UNDEFINED Compstud[size].Read_Data(In_Data, Compstud); Compstud[size].Calc_GPA(Examgrade, Labgrade, Compstud); Compstud[size].LetterGrade(GPA, Compstud); Compstud[size].calc_ClassAverage(GPA, Compstud); Compstud[size].Display_File(Out_Data, Compstud); Compstud[size].Display_Screen(Compstud); } void Student:: Read_Data(ifstream& In_Data, Student Compstud[]) { In_Data.open("inputlab10.txt"); if (!In_Data.is_open()) exit(1); for (int i = 0; i < size; i++)//loop through each student in array { In_Data >> Compstud[i].Firstname >> Compstud[i].Middlename >> Compstud[i].Lastname; for (int j = 0; j < 3; j++)//loop and read in exam grades { In_Data >> Compstud[i].Examgrade[j]; } for (int k = 0; k < 4; k++)//loop and read in lab grades { In_Data >> Compstud[i].Labgrade[k]; } } In_Data.close(); return; } float Student:: Calc_GPA(int Examgrade[], int Labgrade[], Student Compstud[]) { int sum1, sum2;//holds value of sums float StudGPA; for (int i = 0; i < size; i++)//loop through each student in array { for (int j = 0; j < size; j++) { sum1 += Compstud[i].Examgrade[j];//loop and add up student's exam grades } for (int k = 0; k < size; k++) { sum2 += Compstud[i].Labgrade[k];//loop and add up student's lab grades } StudGPA = ((.60 * sum1) + (.40 * sum2) / 2); Compstud[i].GPA = ((.60 * sum1) + (.40 * sum2) / 2); } return StudGPA;//student (element's) calculated GPA } char Student:: LetterGrade(float GPA, Student Compstud[]) { for (int i = 0; i < size; i++)//loop through each student in array { char letter = 0;//variable to hold the letter if (Compstud[i].GPA > 90) letter = 'A'; else if (Compstud[i].GPA > 80) letter = 'B'; else if (Compstud[i].GPA > 70) letter = 'C'; else if (Compstud[i].GPA > 60) letter = 'D'; else letter = 'F'; char Lettergrade = letter;//assign the Lettergrade value of letter. return Lettergrade; } } float Student:: calc_ClassAverage(float GPA, Student Compstud[]) { float GPAsum;//hold all student's GPA for (int i = 0; i < size; i++)//loop through each student in array { //sum all student's GPAs and store value in GPAsum GPAsum += Compstud[i].GPA; ClassAverage = (GPAsum / size); return ClassAverage; } } void Student:: Display_File(ofstream Out_Data, Student Compstud[]) { for (int i = 0; i < size; i++)//loop through each student in array { Out_Data.open("outputlab10.txt"); if (!Out_Data.is_open()) exit(1); //write each student's record to file Out_Data << Compstud[i].Firstname << " " << Compstud[i].Middlename << " " << Compstud[i].Lastname << " " << Compstud[i].GPA << " " << Compstud[i].Lettergrade << " "; for (int j = 0; j < 3; i++)//loop and output exam grades { Out_Data << Compstud[i].Examgrade[j]; } for (int k = 0; k < 4; i++)//loop and output lab grades { Out_Data << Compstud[i].Labgrade[k]; } Out_Data.close(); return; } } void Student::Display_Screen(Student Compstud[]) { const int width = 6; for (int i = 0; i < size; i++)//loop through each student in array { cout << "Name: " << Compstud[i].Firstname << setw(width) << Compstud[i].Middlename << setw(width) << Compstud[i].Lastname << endl; cout << "Exam Grades: " << Compstud[i].Examgrade[3] << setw(width) << endl; cout << "Lab Grades: " << Compstud[i].Labgrade[4] << setw(width) << endl; cout << "GPA: " << Compstud[i].GPA << endl; cout << "Grade: " << Compstud[i].Lettergrade << endl; cout << "The class grade average was" << ClassAverage << endl; return; } for (int i = 0; i < size; i++)//loop through each student in array { Out_Data.open("outputlab10.txt"); if (!Out_Data.is_open()) exit(1); //write each student's record to file Out_Data << Compstud[i].Firstname << " " << Compstud[i].Middlename << " " << Compstud[i].Lastname << " " << Compstud[i].GPA << " " << Compstud[i].Lettergrade << " "; for (int j = 0; j < 3; i++)//loop and output exam grades { Out_Data << Compstud[i].Examgrade[j]; } for (int k = 0; k < 4; i++)//loop and output lab grades { Out_Data << Compstud[i].Labgrade[k]; } Out_Data.close(); return; } }
