How to truncate a file in C?
c, file, truncate, truncation
Solution
In Windows systems there's no header `<unistd.h>` but yet you can truncate a file by using
FILE *f = ...;
_chsize( fileno(f), size);
Problem
I'm using C to write some data to a file. I want to erase the previous text written in the file in case it was longer than what I'm writing now. I want to decrease the size of file or truncate until the end. How can I do this?