// Program to manipulate a text file character by character.
// Assignment-32
// fchrbchr.cpp, Author - Krishna Kumar Khatri.

// Uncomment ONLY the following line if you are using Turbo/Borland compiler.
// #define TC
#ifdef TC
	#include <fstream.h>
	#include <string.h>
#else
    #include <iostream>
	#include <fstream>
	#include <cstring>
	using namespace std;
#endif
#include <conio.h>  // For getch.

int main()
{
    #ifdef TC
        clrscr();
    #endif
    const int MAXLEN = 80;
    fstream fp;
    char* fn = new char[MAXLEN / 4];
    char* contents = new char[MAXLEN * 2];
    int i, contlen;

	cout << "Enter the name for file to be created: ";
    cin >> fn;
    cout << endl << "Use tilde '~' character for string termination.";
	cout << endl << endl << "Enter the contents: ";
	cin.getline(contents, (MAXLEN * 2), '~');

	fp.open(fn, ios::in  |
				ios::out |
				ios::trunc);      // Open the file for both operations.

	contlen = strlen(contents);
	cout << endl << "Writing -> ";
	for (i = 1; i < contlen; i++) {  // Starting from 1 to avoid first char 
		cout << contents[i] << " ";  // repetition. Strange!
		fp.put(contents[i]);
	}
	cout << endl << "File was written successfully.";

    fp.seekg(0);    // Reset the pointer to the BOF (reinitialize).
	cout << endl << endl 
         << "After reding character by character file shows," << endl;
	while (fp) {
		fp.getline(contents, MAXLEN);
        cout << contents << endl;
    }
    fp.close();     // Close the file at last.
    
    cout << endl << endl << "Program over. Press any key to exit...";
    getch();
    return 0; // Successful termination.
}