Re: [PATCH 02/13] hrtimer: remove useless const

[Andrew Morton <akpm@osdl.org>]

Roman Zippel <zippel@linux-m68k.org> wrote:
>
> On Mon, 13 Feb 2006, Andrew Morton wrote:
> 
>  > const arguments to functions are pretty useful for code readability and
>  > maintainability too, if you use them consistently.
> 
>  I could understand that argument, if gcc would warn about it in any way.

It does.  If a function tries to modify a formal argument which was marked
const you'll get a warning.

We're talking about different things here.  My point is that it is
perverted and evil for a function to modify its own args (unless it's very
small and simple), and a const declaration is a useful way for a
maintenance programmer to be assured that nobody has done perverted and
evil things to a function.