Помогите найти ошибку в программке

#include "stdafx.h"
#include <stdio.h> //getchar(), putchar(), printf()
#include <conio.h> //getch()

int main()
{
    bool waitWord = true;
    int currentChar, characters, words;
    characters = words = 0;

    printf("Enter your strings end press <Enter>\r\n");

    while((currentChar = getchar()) != '\n')
    {
        characters++;

        if(currentChar == ' ' || currentChar == '\n' || currentChar == '\t')
            waitWord = true;
        else if(waitWord)
        {
            waitWord = false;
            words++;
        }
    }

    printf("Characters' number is %d\n", characters);
    printf("Words' number is %d\n", words);
    _getch();
}