Re: Stupid "warning: declaration of 'index' shadows a global declaration"
Re: Stupid "warning: declaration of 'index' shadows a global declaration"
- Subject: Re: Stupid "warning: declaration of 'index' shadows a global declaration"
- From: Keary Suska <email@hidden>
- Date: Sun, 15 Nov 2009 09:30:12 -0700
On Nov 15, 2009, at 8:40 AM, Clark Cox wrote:
> On Sat, Nov 14, 2009 at 9:30 PM, Steve Mills <email@hidden> wrote:
>> On Nov 14, 2009, at 14:09:54, Jens Alfke wrote:
>>
>>> This is why I never turn on that warning ˜ due to namespace pollution
>>> by the standard C library and POSIX APIs, too many common variable
>>> names happen to shadow some function like 'index' or 'time' or 'open'.
>>
>> I still insist on using it because it *does* show problems in your own code,
>
> I have never encountered a situation where this warning is generated
> that doesn't also generate another error or warning. Any problems in
> your code that it shows are *already* shown to you by the other
> messages.
>
>> and it *can* be a valid warning that shows you possible real logic errors. But yeah, it does get
>> annoying when building other people's code, like there are tons of them in boost and/or gil.
I would add that what I think is "stupid" is the warning being flagged when a variable declaration masks a function declaration. If it were just variable shadowing I would heartily support it. Not only is the warning immediately misleading, but what coder in her right mind would make a function call without parentheses?
Keary Suska
Esoteritech, Inc.
"Demystifying technology for your home or business"
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