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How do I use the void function to create a calculation that will work inside of a file? The attached picture is what I have so far, and I cannot get the function I created outside of the main program to work inside the program.

How do I use the void function to create a calculation that will work inside of a file? The attached picture is what I have so far, and I cannot get the function I created outside of the main program to work inside the program.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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How do I use the void function to create a calculation that will work inside of a file? The attached picture is what I have so far, and I cannot get the function I created outside of the main program to work inside the program.

Evoid comment(int tper)//prints statements depending on grade obtained if (tper >= 90) cout <« "Excellent\n"; else if (tper >= 80) cout << "Well Done\n"; else if (tper >= 70) cout <« "Good\n"; else if (tper >= 60) cout <« "Need Improvement\n"; else if (tper < 60) cout << "Fail\n"; Evoid avg(int score, int tposs)//calculates the test score { float per = score / tposs; float tper = per 100; E void Iname (string lastname)//prints lastname { cout « lastname « endl; Bint main() //In cout statement below SUBSTITUTE your name and lab number cout <« "" <« endl << endl; //Variable declarations //comment - prints comment on grade average //per = test score percentage //tper = percent * 100 to get true total percentage //tposs = total points possible //score = points scored //lname & lastname = students lastname //Program logic fstream StudentGrades; StudentGrades.open("TestScores.txt", ios::in);//reads the file if (StudentGrades.is_open()) int score; int tposs; float per; float tper; string lastname; while (StudentGrades >> lastname >> score >> tposs) { //Iname; avg; //cout <« setprecision(5) « lastname << endl; // comment; }
Transcribed Image Text:Evoid comment(int tper)//prints statements depending on grade obtained if (tper >= 90) cout <« "Excellent\n"; else if (tper >= 80) cout << "Well Done\n"; else if (tper >= 70) cout <« "Good\n"; else if (tper >= 60) cout <« "Need Improvement\n"; else if (tper < 60) cout << "Fail\n"; Evoid avg(int score, int tposs)//calculates the test score { float per = score / tposs; float tper = per 100; E void Iname (string lastname)//prints lastname { cout « lastname « endl; Bint main() //In cout statement below SUBSTITUTE your name and lab number cout <« "" <« endl << endl; //Variable declarations //comment - prints comment on grade average //per = test score percentage //tper = percent * 100 to get true total percentage //tposs = total points possible //score = points scored //lname & lastname = students lastname //Program logic fstream StudentGrades; StudentGrades.open("TestScores.txt", ios::in);//reads the file if (StudentGrades.is_open()) int score; int tposs; float per; float tper; string lastname; while (StudentGrades >> lastname >> score >> tposs) { //Iname; avg; //cout <« setprecision(5) « lastname << endl; // comment; }
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