I am trying to write a program in C++ that will read a file, then output into a

Question

I am trying to write a program in C++ that will read a file, then output into a new file in ASCII +5. The input file has 4 lines. My problem is I can't get the output to have 4 lines. It just has one line. Here is my program. How do I get it to output each line after it converts the text to ASCII +5?

#include <iostream>

#include <string>

#include <fstream>

using namespace std;

int main()

{

   char ch;

   fstream inputFile, outputFile;

   inputFile.open("plain1.txt", ios::in);

   outputFile.open("plain.txt", ios::out);

   while (!inputFile.eof())

   {

      inputFile.get(ch);

      outputFile.put(ch+5);  

   }

   inputFile.close();

   outputFile.close();

   return 0;

}

Explanation / Answer

The only problem with your code is that it also prints the ascii value of ' ' as ' '+5, which is not a new line character. So, if you want the output to be in 4 seperate lines just like in the input, you need to add 5 to the charcters that are not ' '.

Thus, you need to make an exception for the ' ' case, where you print it as it is.

Modified Code:

#include <iostream>
#include <string>
#include <fstream>
using namespace std;

int main()
{
char ch;
fstream inputFile, outputFile;
inputFile.open("plain1.txt", ios::in);
outputFile.open("plain.txt", ios::out);
while (!inputFile.eof())
{
inputFile.get(ch);
if(ch==' ')
{
outputFile.put(ch);
}
else
{
outputFile.put(ch+5);
}
}
inputFile.close();
outputFile.close();
return 0;
}

The above is the required modified code. Hope this helps you.

Comment for any more doubts.

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