C/C++ :: Calculating Letter Count From Array Of Pointers To Strings

I need to calculate how often each letter appears in a text file from a function that is called from main() with an array of pointers to char and how many pointers there are in the array. The code i have so far is:

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

[Code]....

I get no errors and it runs but it gives me the wrong output. I know my array is correct because when i print it in main() it is correct but each letter is incorrectly counted. When i give it the input .txt file of:

This is one line of a string
This is another
This is the third one
Wow heres another one
It counts a as 8
b as 1
c as 3
etc.

I have hand traced it and cant figure out why it isnt giving me correct values