C++ STL: Trouble with string iterators
- by Rosarch
I'm making a simple command line Hangman game.
void Hangman::printStatus()
{
cout << "Lives remaining: " << livesRemaining << endl;
cout << getFormattedAnswer() << endl;
}
string Hangman::getFormattedAnswer()
{
return getFormattedAnswerFrom(correctAnswer.begin(), correctAnswer.end());
}
string Hangman::getFormattedAnswerFrom(string::const_iterator begin, string::const_iterator end)
{
return begin == end? "" : displayChar(*begin) + getFormattedAnswerFrom(++begin, end);
}
char Hangman::displayChar(const char c)
{
return c;
}
(Eventually, I'll change this so displayChar() displays a - or a character if the user has guessed it, but for simplicity now I'm just returning everything.)
When I build and run this from VS 2010, I get a popup box:
Debug Assertion Failed!
xstring Line: 78
Expression: string iterator not
dereferenceable
What am I doing wrong?
