Another binary file question

I followed how to to write a binary file from this webpage:
http://www.howstuffworks.com/c17.htm

Mine is slightly different but basically the same thing. Anyways, when I do mine and it goes through the loop the second time I get a "segmentation fault". Do you guys have any idea why? If needed I'll copy some of the code but it's really very similar to the one from the webpage (just look at the writing the file part, specifically the loop with r.x=i)

Thanks for any help. :)

Yeah, post some code.

I have not tried the code you link to, but it seems to me that you could run into trouble if you run it on an operating system that has differences in handling of text-files and binary files (such as dos, windows, macos and some others...). On POSIX-compliant os'es, there is no such difference. Try to open the files as binary files by adding a "b" to the mode argument of fopen:

Code:

---

fopen(..., "w") -> fopen(..., "wb")
fopen(..., "r") -> fopen(..., "rb")
fopen(..., "r+") -> fopen(..., "rb+")

---

good luck,
alex

If you could post some compilable code the exhibits the problem it would be easier to determine the cause. What you posted looks fine and my crystal ball has been decomissioned.

-Prelude

I'm programming in a Sun Solaris environment.

Anyways, I don't think i can post all of the code. I'm interning at a place and security is pretty high with everything. Also the code is kind of long to paste here. Well thanks for the help anyways.

>I'm interning at a place and security is pretty high with everything.
Understandable, my workplace is the same way.

>Also the code is kind of long to paste here.
I didn't ask you to post it all, just a bare bones program that compiles and still has the same problem. A little toy program for instance.

Unfortunately, if you aren't capable of posting any useful code to us then it's up to you to step through your code and find the problem yourself through debugging techniques.

-Prelude