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//William Bishop
//[email protected]
/********************************************************************
* File: Chapter 11 Debug.cpp
*
* General Instructions: Complete each step before proceeding to the
* next.
*
* Debugging Exercise 1
*
* 1) Make your own data file like Troy 12, with the next person on the
* next line and save it to a directory you create on your drive.
* 2) Under the Project menu, select Add Existing Item and
* add the input file you just placed on your drive to your
* current project. Make sure your Solution Explorer window
* is visible. If not, you can display it by selecting Solution
* Explorer (or Ctrl+Alt+L).
* 3) Open the input file by simply double clicking the name of the
* file in your Solution Explorer.
* 4) Build and execute the program.
* 5) Update the file paths below to correctly represent the path you
* created.
* 6) Rebuild and execute the program.
* 7) Examine the code and the output and notice the use of
* parallel arrays.
* 8) Add the output file created via the execution of
* your program to your Project. Execute your program again
* and notice how Visual Studio has rewritten your output file
* and asks if you would like to reload the file (select Yes).
* 9) Examine the contents of both the input and the output file.
* 10) Fix all the problems in your code that exist in relation to
* the output. Verify that your output is appropriate for your
input file.
* 11) Build and execute your code until you have all errors
* removed and all the output is correct.
*
* Debugging Exercise 2
*
* 1) Replace the double slashes (\\) in the input file open statement
* with only a single slash
* (i.e., inFile.open("C:\TEMP\Chap_11_data.txt").
* 2) Build your code, noticing the impact of the invalid path you
* created in the previous step.
* 3) Replace the backslashes as they were.
* 4) Change both the input and output filenames so they are
* invalid.
* 5) Update the file related error messages within the code
* to also provide the specific name of the file that is having a
* problem.
* 6) Rebuild and execute your program to verify that your messages
* are correct.
* 7) Correct the path names.
* 8) Build and execute your code and carefully check your
* output on both the console and in the output file.
*
********************************************************************/
#include <iostream>
#include <fstream> // For the files!!!!
#include <iomanip> // For manipulators & formatting options
using std::cin;
using std::cout;
using std::endl;
using std::setw;
using std::ios;
using std::ifstream;
using std::ofstream;
const int EMPLOYEES = 20; Here we have all of the headers for the functions and the files that we are going to open.
const int MAX = 21;
int ReadData(ifstream& inFile, ofstream& outFile, char name[][MAX], int age[]);
void WriteOutputFile(ofstream& outFile, char name[][MAX], int age[],
int counter);
void PrintTotalsAndSummary(ofstream& out, int totalRecords); Here we have the functions that we are declaring.
int main()
{
char name[EMPLOYEES][MAX];
int age[EMPLOYEES];
int record_counter(0); Here we are showing a few variables inside of main to help us inside of the function
ifstream inFile;
// Notice how this automatically opens the file
ofstream outFile("C:\\Users\willb\Documents\Troy13.txt");
inFile.open("C:\\Users\willb\Documents\Troy12.txt"); Here we are opening our files inside of main.
if (inFile.is_open())
{
record_counter = ReadData(inFile, outFile, name, age);
inFile.open();
if (outFile.is_open())
{
WriteOutputFile(outFile, name, age, record_counter);
PrintTotalsAndSummary(outFile, record_counter);
outFile.open();
}
else
{
cout << "Trouble Opening File";
cout << "\n\n\t\t ** About to EXIT NOW! ** "; Here we have our statements in main that if the file is open we are closing it.
}
}
else
{
cout << "Trouble Opening File";
cout << "\n\n\t\t ** About to EXIT NOW! ** ";
}
return 0; Heere we see that the file is shut and we get the trouble opening the file.
}
int ReadData(ifstream& inFile, ofstream& outFile, char name[][MAX], int age[])
{
int counter = 0;
inFile >> name[counter] >> age[counter]; // Priming Read
while (!inFile.eof())
{
cout << setiosflags(ios::left) << setw(25)
<< name[counter] << resetiosflags(ios::left)
<< setw(4) << age[counter] << endl;
counter++;
inFile >> name[counter] >> age[counter]; Here we have the function where we have the width of the file we are opening and we are having a certain amount of parameters to read the files.
}
return counter;
}
void WriteOutputFile(ofstream& outFile, char name[][MAX], int age[], int counter)
{
outFile << " Here is the Output File" << endl;
for (int r = 0; r <= counter; r++)
{
outFile << setiosflags(ios::left) << setw(25)
<< name[r] << setw(4)
<< resetiosflags(ios::left) << age[r] Here we have the different information abou the writing of the files we have and the parameters with them.
<< endl;
}
}
void PrintTotalsAndSummary(ofstream& outFile, int totalRecords)
{
// To screen
cout << "\n\n\t** Total Records: " << totalRecords << " **\n"
<< "\t\t The End \n";
// To file
outFile << "\n\n\t** Total Records: " << totalRecords << " **\n" Here we have information that we are printing to certain files and outputting in the screen with the informaiton of the files.
<< "\t\t The End \n";
}
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