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Trouble with getting program to function properly

Derekrm14 (22)
So this program will compile, but I cannot get it to print out anything so i do not know if it's doing what i intend. I'm trying to get it to convert text from a file ("mystery.txt"), such that uppercase goes to lowercase, lowercase to uppercase, punctuation characters to digits and special characters to ASCII characters. I also need to count:
the total number of characters in the file
the number of alphabetic characters
the number of uppercase alphabetic characters
the number of lowercase alphabetic characters
the number of digits
the number of punctuation marks
the number of newline characters
the number of spaces

Can anyone point me in the right direction? Here's my code:

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#include<iostream>
#include<iomanip>
using namespace std;

//FUNCTION PROTOTYPES:
char convUpperToLower(char);
char convLowerToUpper(char);
char convPunct(char);
char convSpecial(char);

int main()
{
    ifstream inFile;

char ch;

inFile.open( "mystery.txt" )
if( inFile.fail() )
  {
  cout << "Input file failed to open";
  exit(-1);
  }

inFile >> ch;

while (inFile)
  {
  if(isupper(ch))
  {
  ch = convUpperToLower(ch);
  return ch;
  }
  if(islower(ch))
  {
  ch = convLowerToUpper(ch);
  return ch;
  }
  if(ispunct(ch))
  {
  ch = convPunct(ch);
  return ch;
  }
  if(isdigit(ch))
  {
  ch = convPunct(ch);
  return ch;
  }
  if(isalpha(ch))
  {
  ch = convSpecial(ch);
  return ch;
  }
  //Display the decoded character

  inFile >> ch;
  }

inFile.close();
    
    system("pause");
    return 0;
}
char convUpperToLower(char ch)
{
     char newch;
     tolower(char ch); //conv lower
     newch = ch-3; //subtracts 3
     if(ch == "A")
     {
           newch = "x";
     }
     if(ch == "B")
     {
           newch = "y";
     }
     if(ch == "C")
     {
           newch = "z";     
     }
     return newch;
}
char convLowerToUpper(char ch)
{
     char newch;
     toupper(char ch);
     newch = ch+3;
     if(ch == "x")
     {
           newch = "A";
     }
     if(ch == "y")
     {
           newch = "B";
     }
     if(ch == "z")
     {
           newch = "C";     
     }
     return newch;
     
}
char convPunct(char ch)
{
     char newch;
     if(ch == ")")
     {
           newch = "0";
     }
     else if(ch == "!")
     {
           newch = "1";
     }
     else if(ch == "@")
     {
           newch = "2";
     }
     else if(ch == "#")
     {
           newch = "3";
     }
     else if(ch == "$")
     {
           newch = "4";
     }
     else if(ch == "%")
     {
           newch = "5";
     }
     else if(ch == "^")
     {
           newch = "6";
     }
     else if(ch == "&")
     {
           newch = "7";
     }
     else if(ch == "*")
     {
           newch = "8";
     }
     else if(ch == "(")
     {
           newch = "9";
     }
     else if(ch == ">")
     {
           newch = ".";
     }
     else if(ch == "<")
     {
           newch = ",";
     }
     else if(ch == "/")
     {
           newch = "?";
     }
     else if(ch == ";")
     {
           newch = "!";
     }
     else if(ch == "+")
     {
           newch = "(";
     }
     else if(ch == "=")
     {
           newch = ")";
     }
     return newch;
}
char convSpecial(char ch)
{
     cout << "idk";
}


Thanks!
Derek
Last edited on
scapegote (27)
Use single quotes for characters ' not ".

Also #include <fstream>.

There are a few other bugs, but that should get you started cleaning them up.
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