I wrote code in C++ that takes a text file containing information on different football players and their combine results, stores those players as a vector of objects of the class, and prints out those objects. Finally, I wrote a function that calculates the average weight of the players.

MAIN.CPP:

#include "Combine.h" #include  using namespace std; // main is a global function // main is a global function int main() { // This is a line comment  //cout << "Hello, World!" << endl;   vector players; getPlayersFromFile("CombinePlayers.txt", players); for (int i = 0; i < players.size(); ++i) { cout << players[i] << endl; //cout << "Hello Jack" << endl;   }

 avgWeight(players); 

 return 0; }

COMBINE.H:

#ifndef COMBINE_H_ #define COMBINE_H_  #include  #include  #include  #include  #include  #include   using namespace std; class Combine { private: string name, college, pos; int height, weight; float dash, bench; public: //CONSTRUCTORS  Combine() { name = "John Smith"; college = "University"; pos = "player"; height = -1; weight = -1; dash = -1; bench = -1; } Combine(string name, string college, string pos, int height, int weight, float dash, float bench) { this->name = name; this->college = college; this->pos = pos; setHeight(height); setWeight(weight); setDash(dash); setBench(bench); } //GETTERS  string getName() const  { return name; } string getCollege() const  { return college; } string getPos() const  { return pos; } int getHeight() const  { return height; } int getWeight() const  { return weight; } float getDash() const  { return dash; } float getBench() const  { return bench; } //SETTERS  void setName(string name) { this->name = name; } void setCollege(string college) { this->college = college; } void setPos(string pos) { this->pos = pos; } void setHeight(int height) { if (height <= 0) { //Default value  this->height = 1; } else  { this->height = height; } } void setWeight(int weight) { if (weight <= 0) { //Default value  this->weight = 1; } else  { this->weight = weight; } } void setDash(float dash) { if (dash <= 0.0) { //Default value  this->dash = 1; } else  { this->dash = dash; } } void setBench(float bench) { if (bench <= 0.0) { //Default value  this->bench = 1; } else  { this->bench = bench; } } // Overloaded operators  friend ostream& operator<<(ostream &outs, const Combine &com) { outs << left << setw(25) << com.name; outs << left << setw(25) << com.college; outs << left << setw(25) << com.pos; outs << right << setw(5) << com.height; outs << setw(5) << com.weight; outs << setw(5) << com.dash; outs << setw(5) << com.bench; return outs; } }; void getPlayersFromFile(string filename, vector &players) { ifstream inFile; // Use ../ to get out of the cmake-build-debug folder to find the file  inFile.open("../" + filename); // inFile.open(filename);  string name = "", college = "", pos = "", header = ""; string temp; int height = 0, weight = 0; float dash = 0, bench = 0; char comma = ','; // check that the file is in a good state  if (inFile) { // read in the header line  getline(inFile, header); // loop through all the data in the file  while (inFile && inFile.peek() != EOF) { // read line  getline(inFile,temp); // pass it to string strem  stringstream ss(temp); // get name  getline(ss,name,','); // get college  getline(ss,college,','); // get POS  getline(ss,pos,','); // get height  getline(ss,temp,','); height = atoi(temp.c_str()); // get weight  getline(ss,temp,','); weight = atoi(temp.c_str()); if(ss.good()){ // get 40 yard  getline(ss,temp,','); dash = atof(temp.c_str()); } else{ dash=1; } if(ss.good()){ // get bench press  getline(ss,temp,','); bench = atof(temp.c_str()); } else{ bench=1; } // create a Combine object and put it on the back of the vector  players.push_back( Combine(name, college, pos, height, weight, dash, bench)); } } else  { cerr << "File not found" << endl; } inFile.close(); }

float avgWeight(vector &players) { float total = 0; getPlayersFromFile("CombinePlayers.txt", players); for (int i = 0; i < players.size(); ++i) { total += players[i].getWeight();//cout << "Hello Jack" << endl;   } cout << (total/players.size()); }

 #endif /* COMBINE_H_ */ 

CombinePlayers.txt:

Name, College, POS, Height (in), Weight (lbs), 40 Yard, Bench Press Johnathan Abram, Mississippi State, S, 71, 205, 4.45 Paul Adams, Missouri, OT, 78, 317, 5.18, 16 Nasir Adderley, Delaware, S, 72, 206 Azeez Al-Shaair, Florida Atlantic, LB, 73, 234, 16 Otaro Alaka, Texas A&M, LB, 75, 239, 4.82, 20 

OUTPUT:

Johnathan Abram Mississippi State S 71 205 4.45 1 Paul Adams Missouri OT 78 317 5.18 16 Nasir Adderley Delaware S 72 206 1 1 Azeez Al-Shaair Florida Atlantic LB 73 234 16 1 Otaro Alaka Texas A&M LB 75 239 4.82 20

240.2

Now, here's my question: is it possible to store missing data as nothing, rather than a 1? Calculating the average weight was fine because every entry had a recorded weight. However, not every entry has a recorded bench press number. Missing data for bench press is stored as a 1 -- rather than simply being nothing -- which would throw off calculation for the average bench press number. How would I fix this?