Thread: Help!!!!

Originally Posted by starvinmarvin

thanks for all the help so far...now when i go to report the numbers and characters some of the frequencies are addresses instead of the frequency of the number....

Which ones?

You have to zero out arr before accumulating your counts.

how to i do that

actually i thought i already did that by arr[i-32]???

Code:

memset(arr, 0, sizeof(arr));

i tried to put that at the begging and end of the count and it didnt work

Is memset a function like fileopen? If it is, is there a different function we can use besides memset, like fileopen?

@TMK: There is no function fileopen. If you mean fopen, then yes, memset is a built in function (in <string.h>, for whatever reason).

@marvin: You wouldn't want to reset at the end -- you'd just undo all the work that you just did.

Originally Posted by tabstop

@TMK: There is no function fileopen. If you mean fopen, then yes, memset is a built in function (in <string.h>, for whatever reason).

@marvin: You wouldn't want to reset at the end -- you'd just undo all the work that you just did.

Yes I meant fopen. Is there a way around using memset like using fopen?

Originally Posted by The Monkey King

Yes I meant fopen. Is there a way around using memset like using fopen?

I think you are under the impression that that sentence means something. Regrettably, it does not. Obviously fopen and memset are completely different things (one opens a file on disk, the other sets a piece of memory to 0), so you can't substitute one for another. Nor is there a way around using fopen that I can see (certainly not in this program), apart from using OS-specific file functions.

all i want to know is why when i print out the characters frequecys i get addresses instead of the actual frequency. i zeroed out the array with arr[i-32] but i still dont understand why i get addressses for about 32 of them

Originally Posted by starvinmarvin

all i want to know is why when i print out the characters frequecys i get addresses instead of the actual frequency.

Because you don't. You get "random uninitialized data plus my count", which for all intents and purposes is indistinguishable from "random uninitialized data".

i zeroed out the array with arr[i-32]

There is nothing in that statement that could possibly zero out an array. Now if you started by saying arr[i-32] =0, then you'd be zeroing out an array. And note that you want to do that for every possible i, before you start counting.

well i am gettting like huge numbers that are suppose to be in the array where i am looking and printing so i assume that it is addresses....maybe not...look at the code and tell me what i am doing wrong..

Originally Posted by starvinmarvin

well i am gettting like huge numbers that are suppose to be in the array where i am looking and printing so i assume that it is addresses....maybe not...look at the code and tell me what i am doing wrong..

You've been given it in English and given it in code, I'm not sure what else there is, but let's try both:

Code:

{
 
   int arr[95] = {0}; /*Make sure that all the elements of the array are 0 */
   int num1, num2;
   bool success;      
   FILE *pFPOut;
   FILE *pFPIn;

i get a compile error when i equate it to zero....invalid initializer