Hello,

I was tasked yesterday's EWG meeting to reach you about a feature macro for P2128,

which does not currently provide one.

I suppose there are 2 questions:

Do we need one?

I can't really imagine people doing 

#ifdef __cpp_multidimensional_subscript

foo[x, y]

#else

foo(x,y)

#endif

Or something of the sort.

If we do need one, would __cpp_multidimensional_subscript be a satisfactory name?

Thanks,

Corentin