Question

Simple Flashcard game

There is an error with the trimWSFuntion - it should remove the leading and trailing whitespaces and then return the string. It will intake "line two" but will only output 'o'. I need help to know why the whole string is not output.

begin txt file :

786

lineone

line two

begin program :

#include
#include
#include
#include
using namespace std;
string trimFunction(string);
void guessFunction(string, string);
string lowercaseFuntion(string);

int main()
{

   string firstLine;
   string secondLine;
   string trimLine;
   ifstream myFile;
   string read_file;

   cout << "File? ";
   cin >> read_file;
   cin.ignore(100, '\n');
   cout << endl;
   myFile.open(read_file.c_str());
   getline(myFile, firstLine);
   getline(myFile, secondLine);
   getline(myFile, trimLine);

   string trimmedLine = trimFunction(trimLine);
   guessFunction(trimmedLine, secondLine);
   myFile.close();
}

string trimFunction(string u)
{
   char c;
   string f = "";

   int i = 0;
   c = u.at(i);
   while (!isspace(c) && i < u.length())
   {
       f = u.substr(i, u.length());
       i++;
   }
   u = f;
   int j = (u.length() - 1);
   c = u.at(j);
   while (!isspace(c) && j > 0)
   {
       f = u.substr(0, j + 1);
       j--;
   }
   return f;
}

void guessFunction(string w, string v)
{
   string guess = "";
   int i = 1;

   while (guess != w && i <= 3)
   {

       cout << v << "? " << endl;
       getline(cin, guess);

       guess = trimFunction(guess);
       guess = lowercaseFuntion(guess);

       if (i == 3)
       {
           cout << "Sorry, it's " << w << endl;
       }

       else if (guess == w)
       {
           cout << "Yay" << endl;
       }
       else
       {
           cout << "Try again" << endl;
       }
       i++;
   }
}

string lowercaseFuntion(string t)
{

   for (int j = 0; t[j]; j++)
   {
       t[j] = tolower(t[j]);
   }
   return t;
}

Answer 1