#include <fstream>
#include <iostream>
#include <iomanip>
#include <ostream>
usingnamespace std;
// This program reads records from a file. The file contains the
// following: student's name, two test grades and final exam grade.
// It then prints this information to the screen.
constint NAMESIZE = 15;
constint MAXRECORDS = 50;
struct Grades // declares a structure
{
char name[NAMESIZE + 1];
int test1;
int test2;
int final;
char letter;
};
typedef Grades gradeType[MAXRECORDS];
// This makes gradeType a data type
// that holds MAXRECORDS
// Grades structures.
// FIll IN THE CODE FOR THE PROTOTYPE OF THE FUNCTION ReadIt
// WHERE THE FIRST ARGUMENT IS AN INPUT FILE, THE SECOND IS THE
// ARRAY OF RECORDS, AND THE THIRD WILL HOLD THE NUMBER OF RECORDS
// CURRENTLY IN THE ARRAY.
void ReadIt(ifstream &, gradeType array, int);
int main()
{
ifstream indata;
indata.open("graderoll.txt");
int numRecord; // number of records read in
gradeType studentRecord;
if(!indata)
{
cout << "Error opening file. \n";
cout << "It may not exist where indicated" << endl;
return 1;
}
// FILL IN THE CODE TO CALL THE FUNCTION ReadIt.
ReadIt(indata,studentRecord,numRecord);
// output the information
for (int count = 0; count < numRecord; count++)
{
cout << studentRecord[count].name << setw(10)
<< studentRecord[count].test1
<< setw(10) << studentRecord[count].test2;
cout << setw(10) << studentRecord[count].final << endl;
}
return 0;
}
//**************************************************************
// readIt
//
// task: This procedure reads records into an array of
// records from an input file and keeps track of the
// total number of records
// data in: data file containing information to be placed in
// the array
// data out: an array of records and the number of records
//
//**************************************************************
void readIt(ifstream &inData, gradeType gradeRec, int &total)
{
total = 0;
inData.get(gradeRec[total].name, NAMESIZE);
while (inData)
{
// FILL IN THE CODE TO READ test1
inData>>gradeRec[total].test1;
// FILL IN THE CODE TO READ test2
inData>>gradeRec[total].test2;
// FILL IN THE CODE TO READ final
inData>>gradeRec[total].final;
total++; // add one to total
// FILL IN THE CODE TO CONSUME THE END OF LINE
// FILL IN THE CODE TO READ name
inData.get(gradeRec[total].name, NAMESIZE);
}
}
I go to compile to see how the program is running and I cant even get that far because of errors I don't even understand.
Error 2 error LNK2019: unresolved external symbol "void __cdecl ReadIt(class std::basic_ifstream<char,struct std::char_traits<char> > &,struct Grades * const,int)" (?ReadIt@@YAXAAV?$basic_ifstream@DU?$char_traits@D@std@@@std@@QAUGrades@@H@Z) referenced in function _main
