BUFSIZ vs magic numbers and co.

[Alejandro Colomar <colomar.6.4.3@xxxxxxxxx>]

Hi Michael,

There are a lot of EXAMPLES where buffers are created.  In those 
examples, usually there is either a magic random number (e.g., 100, 500, 
1000) or a custom macro such as `#define BUF_SIZE 500`.

Those examples could all use `BUFSIZ` from <stdio.h>, which would reduce 
code (not having to define the macro), and be more consistent (not 
having a random magic number in each example).

However, I see a slightly good point in having magic numbers in the 
examples section:  a novice reader could infer that you are focrced to 
use BUFSIZ if it's written all over the place, while if there is a 
random magic number, the reader probably will deduce that he can use any 
number.

What do you think about it?  Would it be better to consistently use 
BUFSIZ, or just keep the magic numbers?


Regards,

Alex.