D/Objective-C, extern (Objective-C)

[bearophile]

Jacob Carlborg:

> I don't think it adds much complexity. If you don't use extern 
> (Objective-C) you don't need to learn it.

D books must be bigger, D programmers must read those parts of 
the books, the error messages become more complex (because you 
can hit by mistake the unwanted syntax, or because the compiler 
recovering of errors must consider more possibilities), the 
compiler gets a little larger. Thinking that some new syntax has 
no costs is very wrong.

Bye,
bearophile