[webkit-dev] static const

[Yong Li]

MSDN also has such statement: "const" global variables in C++ is implicitly 
static, where it's implicitly extern in C. For "extern const", the module 
that contains a initializer "extern const int bar = foo;" is the owner of 
the object.

re: Albert J. Wong:

I also use "static const" for function scope variables. Thanks for the 
experiment.

-Yong

----- Original Message ----- 
From: "Alexey Proskuryakov" <ap at webkit.org>
To: "Darin Adler" <darin at apple.com>
Cc: "WebKit Development" <webkit-dev at lists.webkit.org>
Sent: Wednesday, September 02, 2009 12:55 PM
Subject: Re: [webkit-dev] static const


>
> 02.09.2009, в 9:32, Darin Adler написал(а):
>
>>> As an aside, is there any practical difference between "static  const" 
>>> and "const" in C++? The only difference I'm aware of is that  the former 
>>> is deprecated in the standard.
>>
>> I believe the former gives internal linkage and the latter external 
>> linkage, so I always use the former for things defined in a source  file 
>> and not declared in a header file and the latter for things  defined or 
>> declared in a header file.
>
>
> I don't have a normative reference at hand, but I'm fairly sure that  both 
> give internal linkage in C++ (unlike in C).
>
> http://stackoverflow.com/questions/998425/why-does-const-imply-internal-linkage-in-c-when-it-doesnt-in-c
> http://bytes.com/topic/c/answers/62013-const-has-internal-linkage-c
>
> - WBR, Alexey Proskuryakov
>
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