In C++, I am having the same error problems that i can not seem to fix? Help please!?

1. I changed the prototype of your calculateAvgerage function to accomodate an additional optional parameter designating the fieldwidth for the test scores. 2. In function calculateAvgerage the following changes were applied: a) omit variable double scoreAvg in favour of using the scoreavg parameter; b) using the iFieldwidth parameter instead of the arbitrary value 7 3. In function main I broke down your title using iFieldwidth as width designator 4. Function calculateAvgerage. a) It is declared void. So you cannot use it together width cout. In case you would declare this function double, then you could leave your notation. However, you then would return a double and wouldn't need to pass the third parameter as a reference b) calculateAvgerage takes three (now four) parameters. In your function call you only used one. I hope that this helps! Cheers

Try actually giving your parameters arbitrary names like this void calculateAvgerage( ifstream &input, ofstream &output, double & number ); double number should probably also be an array, but it's your choice on how to implement it. The second error comes from the fact you're not correctly calling your "calculate Avgerage function" (and you spelled average incorrectly) You should call it like this outFile << setw( 6 ) << right << calculateAvgerage(input,output,number)<<… << Second Error

include<iostream> #include<string> #include<fstream> #include<iomanip> #include<cstdlib> using namespace std; void calculateAverage ( ifstream* inFile, ofstream* outFile, double* scoreAvg ); char calculateGrade( double totalAvg ); int main( ) { 　char fileName[20]; 　double scoreAvg; 　double average = 0; 　int counter = 0; 　string name; 　ifstream inFile; 　ofstream outFile; 　//To read and store data 　cout<<"Enter input file name: "<<endl; 　cin>>fileName; 　inFile.open(fileName); 　if(!inFile) { 　　cout<<"input file did not open please check it\n"<<endl; 　　system("pause"); 　　return 1; 　} 　cout<<"Enter output file name: "<<endl; 　cin>>fileName; 　outFile.open(fileName); 　outFile << fixed << showpoint << setprecision(2); 　outFile << "Student Test1 Test2 Test3 Test4 Test5 Average Grade"<< endl; 　while ( inFile.good() ) { 　　inFile >> name; 　　if ( !inFile ) 　　　break; 　　outFile << setw( 10 ) << left << name; 　　calculateAverage ( &inFile, &outFile, &scoreAvg ); 　　outFile << setw( 10 ) << right << scoreAvg; 　　outFile << setw( 6 ) << right << calculateGrade(scoreAvg)<<endl; 　　counter++; 　　average += scoreAvg; 　} 　// output the results 　average = average/counter; 　outFile << endl << "Class Average = " << average; 　inFile.close( ); 　outFile.close( ); 　system("pause"); 　return 0; } void calculateAverage ( ifstream* input, ofstream* output, double* scoreAvg ) { 　double scoreavg=0; 　int score; 　for ( int i = 0; i < 5; i++ ) { 　　*input >> score; 　　*output << setw( 7 ) << right << score; 　　scoreavg += score; 　} 　*scoreAvg = scoreavg / 5.0; } char calculateGrade( double totalAvg ) { 　if ( totalAvg >=90 ) 　　return 'A'; 　else if ( totalAvg >=80 ) 　　return 'B'; 　else if ( totalAvg>=70 ) 　　return 'C'; 　else if ( totalAvg >=60 ) 　　return 'D'; 　else 　　return 'F'; }

include<iostream> #include<string> #include<fstream> #include<iomanip> #include<cstdlib> using namespace std; void calculateAverage ( ifstream* inFile, ofstream* outFile, double* scoreAvg ); char calculateGrade( double totalAvg ); int main( ) { char fileName[20]; double scoreAvg; double average = 0; int counter = 0; string name; ifstream inFile; ofstream outFile; //To read and store data cout<<"Enter input file name: "<<endl; cin>>fileName; inFile.open(fileName); if(!inFile) { cout<<"input file did not open please check it\n"<<endl; system("pause"); return 1; } cout<<"Enter output file name: "<<endl; cin>>fileName; outFile.open(fileName); outFile << fixed << showpoint << setprecision(2); outFile << "Student Test1 Test2 Test3 Test4 Test5 Average Grade"<< endl; while ( inFile.good() ) { inFile >> name; if ( !inFile ) break; outFile << setw( 10 ) << left << name; calculateAverage ( &inFile, &outFile, &scoreAvg ); outFile << setw( 10 ) << right << scoreAvg; outFile << setw( 6 ) << right << calculateGrade(scoreAvg)<<endl; counter++; average += scoreAvg; } // output the results average = average/counter; outFile << endl << "Class Average = " << average; inFile.close( ); outFile.close( ); system("pause"); return 0; } void calculateAverage ( ifstream* input, ofstream* output, double* scoreAvg ) { double scoreavg=0; int score; for ( int i = 0; i < 5; i++ ) { *input >> score; *output << setw( 7 ) << right << score; scoreavg += score; } *scoreAvg = scoreavg / 5.0; } char calculateGrade( double totalAvg ) { if ( totalAvg >=90 ) return 'A'; else if ( totalAvg >=80 ) return 'B'; else if ( totalAvg>=70 ) return 'C'; else if ( totalAvg >=60 ) return 'D'; else return 'F'; }

Try actually giving your parameters arbitrary names like this void calculateAvgerage( ifstream &input, ofstream &output, double & number ); double number should probably also be an array, but it's your choice on how to implement it. The second error comes from the fact you're not correctly calling your "calculate Avgerage function" (and you spelled average incorrectly) You should call it like this outFile << setw( 6 ) << right << calculateAvgerage(input,output,number)<<... << Second Error