GCC Compiler vs Mircrosoft C++ Compiler(MSVC) Issue - gcc

Question

TDM GCC 4.9.2 not functioning properly on Windows 10 64-bit
Microsoft C++ Compiler (MSVS) runs smoothly
I tried to use file handling in a c++ source file.
The file's purpose was to read a .txt file called ClientList.txt
and write the contents
to a new file called ClientListv2.txt while modifying the pre-existing data.
Here's the contents of the .txt file ClientList.txt:
George A Harrison 713-555-1234 gaharrison#gmail.com 250 N Main Street, Baytown, TX
James K Smith 713-555-1235 jksmith#gmail.com 100 Cactus St, Baytown, TX
Alma P Sanchez 713-554-1237 apsanchez#gmail.com 312 Luella Blvd, Pasadena, TX
Samantha J Jones 713-554-1238 sjjones#gmail.com 125 Purdue Ln, Pasadena, TX
Paula Mary Henry 713-553-1239 pmhenry#gmail.com 412 Colorado Ave, League City, TX
Henry B Albertson 713-553-2345 hbalbertson#gmail.com 724 Perkins Ave, League City, TX
Samuel * Harrison 713-552-2346 sharrison#gmail.com 200 Wesley Ln, Deer Park, TX
Peter N Smith 713-552-2347 pnsmith#gmail.com 157 Briarwood Ct, Deer Park, TX
James Edward Bennett 713-551-2348 jebennett#gmail.com 330 S 6th St, La Porte, TX
Javier D Rodriquez 713-551-2349 jdrodriquez#gmail.com 245 Parkcrest Dr, La Porte, TX
The task was to create a duplicate file called ClientListv2.txt which contains all the pre-existing
information, with two addional records, as well as a change to the phone number and address of any one single line. (record)
Here's my attempt to do the process in C++:
//I started out by included my header files:
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{
//reading the file
fstream file;
file.open("ClientList.txt", ios::in | ios::out);
if (!file.is_open())
{
cout << "File does not exist" << endl;
exit(0);
}
char FirstName[10];
char MiddleName[10];
char LastName[15];
char Phone[15]; //one extra char for '\0' (string terminal char)
char Email[31];
char Address_num[8];
char Address_street[25];
char Town[25];
char State[8];
while (file.good())
{
file.getline(FirstName, 9, ' ');
file.getline(MiddleName, 9, ' ');
file.getline(LastName, 14, ' ');
file >> ws;
file.getline(Phone, 14, ' ');
file >> ws;
file.getline(Email, 30, ' ');
file >> ws;
file.getline(Address_num, 7, ' ');
file >> ws;
file.getline(Address_street, 24, ',');
file >> ws;
file.getline(Town, 24, ',');
file >> ws;
file.getline(State, 7);
file.clear();
file >> ws;
cout << FirstName << " " << MiddleName << " " << LastName << " " << Phone << " " << Email << " " << Address_num << " " << Address_street << " " << Town << " " << State << endl;
}
//To modify one phone and one street address of any single record(line), I used this approach...
fstream new_file;
new_file.open("ClientListv2.txt", ios::out | ios::in);
//file.clear();
file.seekg(0, ios::beg);
file.seekp(0, ios::beg);
char c;
while (file.good())
{
file.get(c);
new_file << c;
}
//declaring a string to take a whole line
string line;
int line_num;
//go to the beginning of the new_file
new_file.seekg(0, ios::beg);
new_file.seekp(0, ios::beg);
cout << "Enter Line No to Edit Phone Number (First Line is 1): " << endl;
cin >> line_num;
for (int i = 1; i < line_num; i++)
{
getline(new_file, line);
}
new_file.seekp(22, ios::cur);
new_file << "888-888-8888";
cout << new_file.tellp() << endl;
cout << new_file.tellg() << endl; //34
cout << new_file.tellp() << endl;
new_file.seekg(0, ios::beg); //moving the flag pointers to the beginning of the file
new_file.seekp(0, ios::beg);
cout << "Enter Line No to Edit Street Address (First Line is 1): " << endl;
cin >> line_num;
for (int i = 1; i < line_num; i++)
{
getline(new_file, line);
}
//65 street address
new_file.seekp(64, ios::cur);
new_file << "B Tane Stripe"; //any address you want to add
cout << new_file.tellg() << endl; //78
cout << new_file.tellp() << endl;
//move the file markers to the end of the file
new_file.seekg(0, ios::end);
new_file.seekp(0, ios::end);
cout << "\t\t\tUpdating Client List Text File\t\t\t" << endl;
//two add two addional clients
cout << "\nEnter the first addional record:\n";
cout << "Enter the FirstName" << endl;
cout << "Enter the MiddleName" << endl;
cout << "Enter the LastName" << endl;
cout << "Enter the Phone" << endl;
cout << "Enter the Email" << endl;
cout << "Enter the Address_num" << endl;
cout << "Enter the Address_street" << endl;
cout << "Enter the Town" << endl;
cout << "Enter the State" << endl;
cin >> FirstName;
cin >> MiddleName;
cin >> LastName;
cin >> Phone;
cin >> Email;
cin >> Address_num;
cin.ignore();
cin.getline(Address_street, 24);
cin.getline(Town, 24);
cin >> State;
new_file.clear();
new_file << "\n" << FirstName << " " << MiddleName << " " << LastName << " " << Phone << " " << Email << " " << Address_num << " " << Address_street << " " << Town << " " << State << endl;
cout << "\nEnter the second addional record:\n";
cout << "Enter the FirstName" << endl;
cout << "Enter the MiddleName" << endl;
cout << "Enter the LastName" << endl;
cout << "Enter the Phone" << endl;
cout << "Enter the Email" << endl;
cout << "Enter the Address" << endl;
cout << "Enter the Town" << endl;
cout << "Enter the State" << endl;
cin >> FirstName;
cin >> MiddleName;
cin >> LastName;
cin >> Phone;
cin >> Email;
cin >> Address_num;
cin.ignore();
cin.getline(Address_street, 24);
cin.getline(Town, 24);
cin >> State;
new_file << FirstName << " " << MiddleName << " " << LastName << " " << Phone << " " << Email << " " << Address_num << " " << Address_street << " " << Town << " " << State << endl;
file.close();
new_file.close();
return 0;
}
Brief Summary
After doing all of this, I've noticed that first, my code only works when I have a ClientListv2.txt manually created in my
present working directory. If not, the code doens't generate a new .txt file itself. Secondly, using a TDM GCC 4.9.2 Compiler, I get pretty strange pattern-based
sequences of outputs when examing my phone number and address accross multiple lines.
It appears, that the code overwrites some of the old text and sometimes it overwrites none of it.
For some reason, when I tried compiling and running it on Visual Studio (Microsoft C++ Compiler MSVC), I got the right results.
Why is TDM GCC 4.9.2 acting like that?
My machine runs Windows 10 64-bit. I suppose that the '\r\n' might have something responsible for this strange output. Who knows?
I used the following dummy text to input the values for two additional rows:
Sam
Billy
Jhons
299-292-9292
sambilly#gmail.com
39
2nd Street
Ventnor
NJ