Determining words in a file by reading individual characters.

Hi there, I have been lurking around these forums for awhile, but this is my first post. I'm stuck on an assignment that requires me to determine how many words are in a file by reading one character at a time. I am not allowed to use string to count words, as that was the previous assignment which I have already done succesfully.
My problems are: I am off by 1 on the count, but only in some files, and if I put curly braces around the imbedded if statement, the loop will not quit. Also making me unable to add an else if statement. I beleive if I was able to use the if statements like I want to I could correct the count issue easily.
Here is an example of file1, which should have 7 words, but my program displays as 6.
"
This &%file should!!,...



have exactly 7 words.

"

Here is file5, which my program calculates the correct amount of words, 22.
"
Mr. &%Brown can moo!!,...

'

can you? This file should have several blank lines before the end of the file.

22 words.





"

Code:

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#include <fstream>
#include <iostream>
#include <cassert>
#include <cstring>


using namespace std;

int main()
{
    string aString;
    char prevChar;
    char currChar;
    int count = 1;
    ifstream inFile;
   
    cout << "Please enter the name of the file you " << endl;
    cout << "would like to count: ";   
    cin >> aString;
    do
    {
 
        if (aString == "Q" || aString == "q")
        {
            return 0;
        }       
        inFile.open(aString.c_str());
        assert(inFile);
        inFile.get(prevChar);
        inFile.get(currChar);           
        while (inFile)
        {         
         
            if (prevChar == ' ' && currChar != ' ')
           
                count++;
                prevChar = currChar;
                inFile.get(currChar);
           
             
           
           
        }
 
        inFile.close();
        inFile.clear();
       
        cout << "This file has " << count << " words." << endl; 
            cout << prevChar << endl << currChar << endl;
        count = 1;
        cout << "***********************" << endl;
        cout << "Please enter the name of the file you " << endl;
        cout << "would like to count (Type Q to quit): ";   
        cin >> aString;
       
       
    }
    while (inFile);
       
    return 0;
}

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