This is just a programming example I am learning from.
I can't get this to output to a text file.
Input file:
1126 Andrew Jackson ILL 5000.00 3245.11
Code:#include<iostream.h> #include<fstream.h> #include<iomanip.h> #include<stdlib.h> #include<string.h> const int MaxNameLen = 31; const int MaxStCodeLen = 3; const int MaxNum = 500; struct CREDITREC { long acctno; //account number = social security number; char custName[MaxNameLen]; //Customer name upto 30 cahracters. char stateCode[MaxStCodeLen]; //upper case state code. double creditlimit; //credit limit of customers double balance; //customers current balance due. }; int LoadArray(CREDITREC crec[], int limit, char filename[]); void SortArray(CREDITREC crec[], int numRecs); void PrintReport(CREDITREC crec[], int numRecs, char filename[]); int main(){ CREDITREC creditRec[MaxNum]; //array of customer credit records. int numRecs; //current number of customers in array. //Obtain the input and report filenames from the user char inputFilename[_MAX_PATH]; char reportFilename[_MAX_PATH]; cout<<"Enter the name of the credit master file: "; cin>>inputFilename; cout<<"Enter the name of the output filename: "; cin>>reportFilename; //load the array of credit records numRecs = LoadArray (creditRec, MaxNum, inputFilename); cout<<"\nArray loaded: "<<numRecs<<"records input\n"; //sort the arrray into a state code order cout<<"Sorting the array\n"; SortArray(creditRec, numRecs); //Produce the report cout<<"Printing the report\n"; PrintReport(creditRec, numRecs, reportFilename); cout<<"Finished\n"; return 0; } ////////////////////////////////////////////////////////////////////// //Load Array // ////////////////////////////////////////////////////////////////////// int LoadArray(CREDITREC crec[], int limit, char filename[]){ ifstream infile; infile.open(filename, ios::in | ios::nocreate ); if (!infile){ cerr<<"Error: cannot open"<<filename<<endl; exit (1); } int i = 0; char c; while(i < limit && infile >>crec[i].acctno >> c){ //input the customer name " delimited infile.getline(crec[i].custName, MaxNameLen, '\"'); //input the next byte which can be the " if thee name is length. infile.get (c); //if it was the " then skip ws infile>>ws; infile.get (crec[i].stateCode, MaxStCodeLen); infile>>crec[i].creditlimit>>crec[i].balance; i++; } //guard against input data if(infile.bad()){ cerr<<"Error: bad data input file.\nLast good id was"; if((i - 1)== 0) cerr<<"the first line\n"; else cerr<<crec[i - 1].acctno<<endl; infile.close (); exit (3); } infile.close (); return i;//return the number of records } ////////////////////////////////////////////////////////////////////// //SortArray: sorts thee credit records into state code order // ////////////////////////////////////////////////////////////////////// void SortArray (CREDITREC crec[], int numRecs){ CREDITREC temp; int i, j; for(i=0; i<numRecs-1; i++){ for(j=i+1; j<numRecs; j++){ if (strcmp (crec[j].stateCode, crec[i].stateCode) < 0){ temp = crec[i]; crec[i] = crec[j]; crec[j] = temp; } } } } ////////////////////////////////////////////////////////////////////// //PrintReport: summarize data wile printing the report // ////////////////////////////////////////////////////////////////////// void PrintReport(CREDITREC crec[], int numRecs, char filename[]){ char prevState[MaxStCodeLen]; //the previous state code for breaks int numAcctInState = 0; //number of accounts in this state double totalLimit = 0; //total credit limit in this state double totalBalance = 0; //total credit extended in this state int grandNumStates = 0; int grandNumAccts = 0; //company total number of accounts. double grandTotalLimit = 0; //company total credit limit double grandTotalBalance = 0; //company total credit extended //open report file and print hedings and column headings ofstream outfile (filename); outfile<<"Acme Credit Company - Creedit Extended by State Report\n\n" <<"State Number of Credit Totals Extended\n" <<"Code Accounts Limit Balance\n"; outfile.setf(ios::fixed, ios::floatfield); outfile.setf(ios::showpoint); outfile<<setprecision(2); //guard against no records in the array if(numRecs){ //initialize the previous state code to the first record //and initialize the initial state totals strcpy(prevState, crec[0].stateCode); totalLimit = crec[0].creditlimit; totalBalance = crec[0].balance; numAcctInState; //Loop through all the credit records for(int i=1; i < numRecs; i++){ //check for a change in state code if (strcmp (prevState, crec[i].stateCode) != 0){ //this stat is the next state so print totals of the previous state outfile<<setw(4)<<prevState <<setw(9)<<numAcctInState <<setw(7)<< "$" <<setw(9)<<totalLimit <<setw(6)<< "$" <<setw(9)<<totalBalance<<endl; //roll previous state totals into grand company totals grandNumAccts += numAcctInState; grandNumStates++; grandTotalLimit += totalLimit; grandTotalBalance += totalBalance; //reset previous state code to the new one strcpy(prevState, crec[i].stateCode); //reset the state totals to zero. numAcctInState = 0; totalLimit = 0; totalBalance = 0; } //accumulate this state values numAcctInState++; totalLimit += crec[i].creditlimit; totalBalance += crec[i].balance; } //print last state in the set of data outfile<<setw(4)<<prevState <<setw(9)<<numAcctInState <<setw(7)<< "$" <<setw(9)<<totalLimit <<setw(6)<< "$" <<setw(9)<<totalBalance<<endl; grandNumAccts += numAcctInState; grandNumStates++; grandTotalLimit += totalLimit; grandTotalBalance += totalBalance; } //print the grand company totals outfile<<" -- --- -------- -----------\n" <<setw(4)<<grandNumStates <<setw(9)<<grandNumAccts <<setw(7)<< "$" <<setw(9)<<grandTotalLimit <<setw(6)<< "$" <<setw(9)<<grandTotalBalance<<endl; outfile.close(); }
