Thread: Problem with loop stopping at wrong time

Hello again.
I have created the following program to count the number of times each letter of the alphabet appears in a textfile. It works properly, unless there are no occerences of a certain character. Instead of just returning the value 0, it stops and any other letter in the alphabet after it that is in the file dosnt get counted\printed and I can't figure out why. Any ideas??

Code:

#include <stdio.h>
#include <stdlib.h>

char inputArray[1024], inFile[128];
FILE *in;
int charCount, countArray[26] = {0}, aRep, *ptr;
float lettotal, percentage;

void main()
{

	printf("\nInput name of plaintext file, including full path:\n");
	gets(inFile);

	if ((in = fopen(inFile, "r")) == NULL)
	{
		printf("\nCould not open file to be converted\n");
		exit(8);
	}

	while (aRep != EOF)
	{
		aRep = fgetc(in);
		
		if (aRep >= 97 && aRep <= 122)
			{
			aRep = aRep - 32;
			}
		
		if (aRep >= 65 && aRep <= 90)
		{
		inputArray[charCount] = aRep;
		charCount++;
		}
	}

	inputArray[charCount] = '\0';
	charCount = 0;
	
	for (charCount = 0; charCount != '\0'; charCount++)
	{
		aRep = inputArray[charCount] - 65;
		countArray[aRep] = countArray[aRep] + 1;
	}
	
	countArray[charCount] = '\0';
	charCount = 0;
	printf("Number of each letter in file:\n");

	for (charCount = 0; countArray[charCount] != '\0';  charCount++)
	{
		aRep = charCount + 65;
		printf("%c:%d\t", aRep, countArray[charCount]);
	}
}

Thanks
-Chris

P.S. I know there are a couple of unused variables and a pointer, they are for somthing else it needs to do later once this part works =)