main.cpp

#include <algorithm>
#include <iomanip>
#include <ios>
#include <iostream>
#include <stdexcept>
#include <vector>
#include "grade.h"
#include "Student_info.h"

using std::cin;
using std::setprecision;
using std::cout;
using std::sort;
using std::domain_error;
using std::streamsize;
using std::endl;
using std::string;
using std::max;
using std::vector;

int main()
{

    vector<Student_info> students;
    Student_info record;
    string::size_type maxlen = 0;

    cout << "Please input Name, Midterm, and Final "
    "followed by end of file" << endl;

    while (read(cin, record)) {
        maxlen = max(maxlen, record.name.size());
        students.push_back(record);
    }

    sort(students.begin(), students.end(), compare);

    for (vector<Student_info>::size_type i=0;
    i != students.size(); ++i)
    {
        cout << students[i].name << string(maxlen + 1 -students[i].name.size(), ' ');


    try
    {
        double final_grade = grade(students[i]);
        streamsize prec = cout.precision();
        cout << setprecision(3) << final_grade
        <<setprecision(prec);
    }
    catch (domain_error e)
    {
        cout << e.what();
    }
    cout << endl;
    }
return 0;
}