Re: [patch] give gpioctl.c some love

[Felix Deichmann <m4j0rd0m0%gmail.com@localhost>]

Am 22.08.2015 um 10:15 schrieb Marc Balmer:
> Imo, this patch does not solve a problem, but creates new ones, maybe...
>   The constness that you sprinkle is definitely not needed, only makes
> the code cluttered imo.

This "constness" is mainly adding "pointers to const" in function 
arguments and for strings. Some will consider this good style to say the 
least (MISRA, CERT C Coding Standard), and some even claim it will allow 
for better compiler optimization.

CERT has for example:
DCL00-C. Const-qualify immutable objects
DCL13-C. Declare function parameters that are pointers to values not 
changed by the function as const
STR05-C. Use pointers to const when referring to string literals
STR30-C. Do not attempt to modify string literals
etc.

Regards,
Felix