Is there any ordinary reason to use open() instead of fopen()?

Question

I\'m doing a small project in C after quite a long time away from it. These happen to include some file handling. I noticed in various documentation that there are functions

Answer 1

It is better to use open() if you are sticking to unix-like systems and you might like to:

• Have more fine-grained control over unix permission bits on file creation.
• Use the lower-level functions such as read/write/mmap as opposed to the C buffered stream I/O functions.
• Use file descriptor (fd) based IO scheduling (poll, select, etc.) You can of course obtain an fd from a FILE * using fileno(), but care must be taken not to mix FILE * based stream functions with fd based functions.
• Open any special device (not a regular file)

It is better to use fopen/fread/fwrite for maximum portability, as these are standard C functions, the functions I've mentioned above aren't.