readFrom_WriteTo_TextFile.cpp

gistfile1.hpp

/* readFrom_WriteTo_TextFile.cpp

   reads from, line by line, a text file: INPUT.txt
   writes to, line by line, a text file: OUTPUT.txt

*********************************************************/

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

int main () {
  int result;
  string temp_string;// temporary string to hold line of data
  ifstream inputFile ("INPUT.txt");
  ofstream outputFile;
  outputFile.open("OUTPUT.txt");
  if (inputFile.is_open())
  {
    while (! inputFile.eof() )
    {
      // read line from INPUT.txt & copy to temp_string
      getline (inputFile,temp_string);
      // dynamically alocate enough memory for char array
      char *a=new char[temp_string.size()+1];
      // assign zero to the first value in the array
      a[temp_string.size()]=0;
      // copy data from temp_string into char array
      memcpy(a,temp_string.c_str(),temp_string.size());   
      // write to outputFile character, by character
      for (int i = 0; i < temp_string.size(); i++)
      {
        outputFile << a[i];
      }      
      outputFile << endl;
    } // closes: while (! inputFile.eof() )
    
    inputFile.close();
    outputFile.close();
  } // closes: if (inputFile.is_open())
  return 0;
} //** closes: main