Hello everyone,
I have a question regarding advanced file manipulation. I am trying to make a function that will take in a number which will be the number of a record and basically take that record out and display its contents and let the user edit it.
Here is the code:
#include <iostream>
#include <fstream>
using namespace std;
int main ()
{
const int SIZES = 100;
struct Speech
{
char beginning[SIZES];
char str1[SIZES];
char str2[SIZES];
char str3[SIZES];
};
Speech mybot;
fstream outputFile;
outputFile.open("umai6r.txt", ios::in | ios::out | ios::app);
cout << "which one? ";
long num;
cin >> num;
outputFile.seekg(num * sizeof(mybot), ios::beg);
outputFile.read(reinterpret_cast<char *>(&mybot), sizeof(mybot));
cout << "\n";
cout << mybot.beginning;
cout << "\n";
cout << mybot.str1;
cout << "\n";
cout << mybot.str2;
cout << "\n";
cout << mybot.str3;
cout << "\n";
cin >> mybot.beginning;
cout << "123123123";
cin >> mybot.str1;
cout << "123123";
cin >> mybot.str2;
cout << "123123";
cin >> mybot.str3;
cout << "123123123";
outputFile.seekp(num * sizeof(mybot), ios::beg);
outputFile.write(reinterpret_cast<char *>(&mybot), sizeof(mybot));
outputFile.close();
system("pause");
return 0;
}I know its not complete. Nor is it in the format of a function. I will turn it into function later. Right now I just want to make sure it works. The problem with this is that it doesn't even create a file with the name I gave. Any help would be appreciated.