Piglatin pls

// This program converts a poem from a text file
// into pig-latin.

#include<iostream>
#include<string>
#include<fstream>
#include<iomanip>

using namespace std;


// Function Prototypes
string ConvertToPigLatin(string);




//****************
// Function Main *
//****************

int main()
{
   cout << "\t \"Desiderata\" by Max Ehrmann\n";
   cout << "\t Translated into Pig-Latin\n\n\n\n";



   // Create string variable for input-file name
   const string input_file_name = "PigLatinIn.txt";

   // Create ifstream variable for opening and reading file
   ifstream desiderata_input;

   // Create variable for reading in the poem
   string inStr;


   // Open input file and call Conversion Function to convert input to piglatin
   // Print out converted word in loop
   desiderata_input.open(input_file_name);
   if(!desiderata_input.fail())
   {
      // Create counter for newline variable
         int newline_count = 0;
      cout << "Input file opened successfully.\n\n";
      while(!desiderata_input.eof())
      {


         // Read in input file to inStr variable
         desiderata_input >> inStr;

         // call function to convert word to piglatin
         inStr = ConvertToPigLatin(inStr);

         // output converted word
         cout << inStr;
         cout << " ";

         newline_count++;
         if(newline_count % 5 == 0)
         {
            cout << endl;
         }



         // loop back around while not at end of file
      } // end "while not at end of file" loop
   }else
   {
      cout << "Input file failed to open.\n\n";
      system("pause");
      return 0;
   } // end input validation "if/else"

  // Close the input file
  desiderata_input.close();

   cout << endl << endl;
   system("pause");
   return 0;
}




//***********************
// Conversion Function  *
//***********************

string ConvertToPigLatin(string inStr)
{
   // Create string variable for converted word
   string outStr;



  // Append "-way" if word begins with a vowel
  if(inStr.find_first_of('a') == 0 || inStr.find_first_of('e') == 0 || inStr.find_first_of('i') == 0 || inStr.find_first_of('o') == 0 || inStr.find_first_of('u') == 0)
  {

      outStr = inStr.append("-way", 4);


  }else
  {
     string temp1;
     string temp2;

     outStr = inStr;

     for(int i = 0; i < outStr.length(); i++)
     {


        switch(outStr[i])
        {
        case 'a': temp1 = outStr.substr(0, i); temp2 = outStr.substr(i, i++);
        case 'e': temp1 = outStr.substr(0, i); temp2 = outStr.substr(i, i++);
        case 'i': temp1 = outStr.substr(0, i); temp2 = outStr.substr(i, i++);
        case 'o': temp1 = outStr.substr(0, i); temp2 = outStr.substr(i, i++);
        case 'u': temp1 = outStr.substr(0, i); temp2 = outStr.substr(i, i++);
        } // end switch statement



     } // end for loop

     outStr = temp2 + temp1;
     outStr.append("ay", 2);


  } // end if/else







  return outStr;

}