Compiling GCC with g++: a report

[Zack Weinberg]

Mark Mitchell <mark@codesourcery.com> writes:

[snip stuff addressed elsewhere]
> I agree with the goal of more hiding.
>
> You can do this in C by using an incomplete structure type in most
> places, and then, in the files where you want the definition visible,
> defining the structure to have a single field of the enumerated
> type. That is a little messy, but it is C++-compatible.  (In fact, in
> ISO C++, without the additions presently in the WP, you can't do
> better; forward declarations of enums are still not allowed.)

Doesn't work, at least not as a drop-in replacement; you can't pass an
incomplete structure by value.  We do do this in places where there's
a real structure that can be passed around by pointer...

zw