On Mon, 13 Feb 2006, Andrew Morton wrote:
> Roman Zippel <[email protected]> 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.
> -
This is evil????
void foo(int len)
{
while(len--)
do_something();
}
I don't think so. The function already owns "len". Why should it
create another copy?
Cheers,
Dick Johnson
Penguin : Linux version 2.6.13.4 on an i686 machine (5589.66 BogoMips).
Warning : 98.36% of all statistics are fiction.
_
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