C++ assignment - need help

[maryrewalt]

the spec for the project (instructions, requirements, etc.) and also my code is in a file called decrypt.txt. It compiles for me in Visual Studio however the Autograder is telling me that it is not compiling and giving me the following error message:

Files submitted were:
NOTE: gradeout.txt was created by the autograder
decrypt.cpp
gradeout.txt
Tests of Proj 4
~~~~~~~~~~~~~~~
Test 1 -- compilation
Your code could not be compiled. The following
compilation errors were reported:
>> begin compilation errors ================================
g++ -g -c -o proj4.o decrypt.cpp
decrypt.cpp: In function ‘int main()’:
decrypt.cpp:20: error: no matching function for call to ‘std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream(std::string&)’
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/fstream:442: note: candidates are: std::basic_ifstream<_CharT, _Traits>::basic_ifstream(const char*, std::_Ios_Openmode) [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/fstream:428: note: std::basic_ifstream<_CharT, _Traits>::basic_ifstream() [with _CharT = char, _Traits = std::char_traits<char>]
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/iosfwd:89: note: std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream(const std::basic_ifstream<char, std::char_traits<char> >&)
make: *** [proj4.o] Error 1
>> end compilation errors ==================================
The following tests were failed as a result of
the compilation errors mentioned above:

It may have something to do with what the Autograde wants differently with my code, but I'm unsure how to change it.

[Moschops]

Show us line 20 of decrypt.cpp

Actually, just show the code.

[maryrewalt]

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

int main()
{
   ifstream testFile;
   string encryptedFile, file, fileName;

   cout << "Please enter the name of the file:";
   cin >> fileName;

   string line;
   ifstream inputfile (fileName);

   // open file
   if (inputfile.is_open()){

       // while there are still lines in the file
       while (inputfile.good() ){
           // get the line, put into the variable "line"
           getline (inputfile, line);
           bool right = false;
           bool hasDirection = false;   
           bool hasShift = false;        
           int shift = 0;
           for (int i=0; i < line.length(); i++){

               char c = line.at(i);
               if(c ==' '){
                   continue;
               }
               if(c == '+'){
                   shift = 0;
                   right = false;
                   hasDirection = false;
                   hasShift = false;
               }
                else if(c == '<'){
                    right = false;
                    hasDirection = true;
               }
                else if(c == '>'){
                    right = true;
                    hasDirection = true;
               }
                //if between 0 and 9
                else if(hasDirection && c >= 48 && c <= 57){
                    if(shift > 0){
                        shift = shift*10 + c - 48; //more than one digit
                    }
                    else{
                       shift = c - 48;
                       hasShift = true;
                    }
               }
                else{
                    if(!hasDirection || !hasShift){
                        cout << "*** ERROR: No shift value as expected ***" << endl;
                        cout << "Special character: ";
                    if(!hasDirection)
                        cout << "+";
                    else if(right)
                        cout << ">";
                    else
                        cout << "<";
                        cout << " requires a numeric following it." << endl;
                        break;
                    }   
                else if((c >= 97 && c <= 122) || (c >= 65 && c <= 90)){
                    //if it's a char
                    if(c >= 97){
                        //if lowercase, make it upper
                        c -= 32;
                    }
                    char newchar = c + shift;
                    if(!right)
                       newchar = c - shift; //other way on ascii
                       newchar = newchar - 65;
                   
                    if(newchar < 0){ //overflow
                        newchar = newchar % 26;
                        newchar = 26 - newchar;
                    }
                    else{
                        newchar = newchar % 26;
                    }
                   newchar = newchar + 65;       
                   cout << newchar;
                    }
                //prints two end-of-line characters
                else if(c=='#'){
                   cout << endl << endl;                                            
                   break;
               }
               }
              }
           }
      inputfile.close();
   }
   else{
       cout << "*** ERROR: Error in opening file ***" << endl;
       cout << "You entered an invalid file name. Please try again." << endl;

[Moschops]

ifstream inputfile (fileName);
The ifstream constructor takes a char*, not a string

You're missing at least a } and possibly more from the end of the code posted.