Problem using case '\n': with an inputted char.

[Filthy_Utter]

I'm trying to search a specified file for all instances of substring "abbaa."

This is an easy problem, and I know I can do it better than I have, but the professor is making us use a 6x3 array in order to help us understand finite state machines.

Well the code I wrote runs perfectly, but the case for '\n' doesn't catch. It just flows through without it. Any ideas? (it's probably something extremely simple )

Thanks in advance!

Significant portion of code:

		if(fin)
		{
			fin >> inChar;
			while(fin)
			{
				switch(inChar)
				{
				case 'a':
					currentState = state[currentState][a];
					break;
				case 'b':
					currentState = state[currentState][b];
					break;
				case '\n':
					lineCount++;
					colCount = 0;
					currentState = state[currentState][other];
					break;
				default:
					currentState = state[currentState][other];
					break;
				}
				fin >> inChar;
				if(currentState == S5)
					cout << endl << "* line " << lineCount << ", column " << colCount - 4;
				colCount++;
			}
			quit = true;
		}

Program:

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

int main()
{
	//declerations and definitions
	enum { S0, S1, S2, S3, S4, S5 };
	enum { a, b, other };

	fstream 
		fin;

	string
		file;

	char
		inChar;

	bool
		quit = false;

	int
		state[6][3], //6x3 array for state
		currentState = S0,
		lineCount = 1,
		colCount = 1;

	
	/*
	currentState = &state[*currentState][a];
	cout << *currentState;
	*/
	
	//define the array
	for(int i = S0; i <= S5; i++)
		state[i][other] = S0;
	
	state[S0][a] = S1;
	state[S1][a] = S1;
	state[S2][a] = S1;
	state[S3][a] = S4;
	state[S4][a] = S5;
	state[S5][a] = S1;

	state[S0][b] = S0;
	state[S1][b] = S2;
	state[S2][b] = S3;
	state[S3][b] = S0;
	state[S4][b] = S2;
	state[S5][b] = S2;
	
	while(quit == false)
	{
		//open the fin stream
		cout << "Please enter the input file:" << endl 
			 << "* ";
		cin >> file;
		fin.open(file,ios::in);

		//check for fin stream
		if(fin)
		{
			fin >> inChar;
			while(fin)
			{
				switch(inChar)
				{
				case 'a':
					currentState = state[currentState][a];
					break;
				case 'b':
					currentState = state[currentState][b];
					break;
				case '\n':
					lineCount++;
					colCount = 0;
					currentState = state[currentState][other];
					break;
				default:
					currentState = state[currentState][other];
					break;
				}
				fin >> inChar;
				if(currentState == S5)
					cout << endl << "* line " << lineCount << ", column " << colCount - 4;
				colCount++;
			}
			quit = true;
		}
		else
		{
			do
			{
				system("CLS");
				cout << "The input file was not opened successfully. Would you like to try again?" << endl
					 << "(y/n):" << endl 
					 << "* ";
				cin >> inChar;
				inChar = toupper(inChar);
			} 
			while(inChar != 'Y' && inChar != 'N');

			if(inChar == 'N')
				quit = true;
			system("CLS");
		}
	}
	cout << endl << endl;
	system("PAUSE");
	return 0;
}

Note: I know this code is pretty sloppy, but I've done it in just a few hours (most of which was trying to solve this bug). I will tidy it up later.
Note2: When I get better at coding I plan to contribute to this community instead of just asking questions all of the time!