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Problem with writing in a text file in C

Hey there
It will be great if someone could help me with the following case
I recently found a C program on the net and i compiled and everything was fine
The program starts by passing parameters in the terminal a text file to read and another to write. Well, reading goes well. The problem is there is nothing in the output text file. I checked my permissions which were good as well.
Any ideas?

Might help to see the relevant piece of code? :}

Cheers,
Tink

Well, to be honest with you i thought about it before.
The fact is that the code is too long and is regarded to Counter Propagation Neural Networks in Artificial Intelligence so that's why i didnt post it.
http://www.cis.syr.edu/~mohan/html/Bookfiles/counter.c
There is also a README txt in http://www.cis.syr.edu/~mohan/html/B...ME-for-counter which i strongly believe that it would be useful.

You need to pass three files in total. Sounds like you only pass two.

The fact is that in output generation (-o) i pass 3 files as i am told
I noticed also that if i pass an output file which doesnt exist after the compilation will be produced, but will not be opened by a default program lets say by KWrite.
If i try then to open it with KWrite will be empty.

It works (at least my outputfile is not empty). I started with an empty data file before I could generate the weight file. Next it went smoothly.

Code:

wim@btd-techweb01:~/progs/lq507750$ ./lq507750 -o weight1 data1 out1

Unable to open file weight1 for reading

wim@btd-techweb01:~/progs/lq507750$ ./lq507750

** Select L(earning) or O(utput generation) **

L

How many dimensions does the input pattern have?: 2

How many dimensions does the output pattern have?: 3

How many hidden nodes will the network use?: 4

Enter the name of the training data file: data1

Unable to open file data1 for reading

wim@btd-techweb01:~/progs/lq507750$ touch data1

wim@btd-techweb01:~/progs/lq507750$ ./lq507750

** Select L(earning) or O(utput generation) **

L

How many dimensions does the input pattern have?: 2

How many dimensions does the output pattern have?: 3

How many hidden nodes will the network use?: 4

Enter the name of the training data file: data1

Enter the name of the output weight file: weight1

Total number of input samples?: 5

Max number of iterations in phase 1(enter a positive integer)?: 6

Max number of iterations in phase 2(enter a positive integer)?: 7

Enter 0 to use default values for learning rate parameters, enter 1 for user-specified values

  (default learning rates decay exponentially from 0.3 to 0.01): 0

Elapsed time 0 milliseconds



wim@btd-techweb01:~/progs/lq507750$ ./lq507750 -o weight1 data1 out1

Elapsed time 10 milliseconds

wim@btd-techweb01:~/progs/lq507750$ ls -l

total 92

-rw-r--r--  1 wim develop    0 2006-12-07 05:54 data1

-rwxr-xr-x  1 wim develop 23400 2006-12-07 06:03 lq507750*

-rw-r--r--  1 wim develop 22390 2006-12-07 06:03 lq507750.c

-rw-r--r--  1 wim develop 40000 2006-12-07 06:05 out1

-rw-r--r--  1 wim develop  194 2006-12-07 06:05 weight1

wim@btd-techweb01:~/progs/lq507750$

There are a number of warnings when using the -Wall option when you compile the source code. You might want (or have to) to clear them out first.

PS gcc 3.3.4 on slackware 10.1