This is the wierdest thing and it took me all day to find this problem. However, I have no clue why it''s happening. Here''s some code: ofstream outfile; outfile.open(fileName, ios::app | ios::binary); for(int j = 0; j < 84; j++) { outfile.write((char*)(&tempInt), 1000); } outfile.close(); Pretty basic code. It creates a file and I''ve checked the size and it''s 84,000 bytes in size. So far, so good. Now if I change the write function to this: outfile.write((char*)(&tempInt), 10000); So that each write writes 10 times as much memory, I would expect a file of size 840,000 bytes. But get this. The file ends up being only 2,204 bytes. How in the world is this happening???? Please, ANY help would be appreciated. I am completely stuck and don''t know where to go. Thaks so much to anyone who replies. --Vic--

From the STL doc on ostream::write
"The caller must ensure that str really contains at least count characters, otherwise the behavior is undefined."

Hmm... that''s not from a website, that''s from a book.

I don''t know if there''s a reference online. You can go check SGI''s website (SGI''s implementation of the STL is among the most popular)

http://www.sgi.com/tech/stl/