* Goswin von Brederlow:
>> This was once desirable because you couldn't declare real constants in
>> classes. Today,
>>
>> template <typename T>
>> struct Foo
>> {
>> static const unsigned N = T::N;
>> char bar[N];
>> };
>>
>> works and the enum trick lost its importance.
>
> Doesn't that still make N a real variable in memory and does not get
> optimized away like enums?
Only if you provide a definition, and not just a declaration, it
seems.
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