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Re: extern const initialized warns in C
On 21 January 2018 at 12:08, Georg-Johann Lay wrote:
> Jay K schrieb:
>>
>> extern const int foo = 123;
>>
>> Why does this warn?
>> This is a valid portable form, with the same meaning
>> across all compilers, and, importantly, portably
>> to C and C++.
>
>
> I also wondered about this.
>
> In C99 §6.9.2 "External object definitions" there's actually
> the following example in clause 4:
>
> extern int i3 = 3; // definition, external linkage
That's a different case. There's no advantage to the 'extern' here,
because the code means the same thing in C and C++ without the
'extern', so just leave it out.