Mihail Mihaylov wrote:
> Right now I experience some difficulties using int write( int, char*, int );
> In the simple program that I have attached I first move to a location within
> a file using long lseek(int, long, int) and then I write some dummy data
> using the int write( int, char*, int ) function.
> I am doing that under Solaris, and for unknown reason the dummy string
> that I am trying to write goes not at the pre-set location, but instead
> goes to the very beginning of the file. The file size though is updatedA
> correctly, if I move to a location that is currently outside the file
> range.
Your program works fine for me under Linux.
C++ is notoriously non-portable. Try rewriting it as a C program, i.e.
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>
int main(void)
{
int fd;
long offset = 512;
if ((fd = open("save.txt", O_WRONLY | O_CREAT, 0644)) < 0)
{
perror("Error opening file save.txt");
exit(1);
}
lseek(fd, offset, SEEK_SET);
write(fd, "string1", 7);
close(fd);
return 0;
}
--
Glynn Clements <[EMAIL PROTECTED]>
